Weather for Saturday and Sunday holidays: Western and eastern Japan will have a good day for tourists; northern Japan is expected to experience temporary rain and thunderstorms on the 30th (Sunday)

2025/11/28 21:33

Tomorrow, the 29th (Saturday), the area around Honshu will be covered in high pressure, and many places will be sunny during the day. Tomorrow, the 30th (Sunday), is expected to be sunny in many places in eastern and western Japan, but northern Japan is likely to experience temporary rain and thunderstorms due to the influence of low pressure and fronts.




The morning of tomorrow, the 29th (Saturday), will be extremely cold due to the effects of radiation cooling during the night, with some places in inland areas of eastern and western Japan likely to experience temperatures below freezing. Please take care of your crops as frost may occur.
The sun will shine during the day, and the weather will be pleasant and sunny from Kanto to the west of the Pacific Ocean. However, in areas along the Sea of Japan from northern Japan to Hokuriku, the wind will feel cold, and the temperature will remain around 10c from Tohoku to Hokuriku. In Sapporo, the maximum daytime temperature is expected to be 5c, which is likely to be more than 5c lower than today, the 28th.
Please be careful about your physical condition as the temperature difference during the day tends to be large.

In Hokkaido, the spacing between isobars is narrow due to the influence of a low-pressure system moving through the Sea of Okhotsk, so please be careful of poor visibility in the morning due to strong winds and snowstorms. In the afternoon, the strong winds will subside, the sun will shine, and the weather will improve in many places. However, the next day, on the 30th (Sunday), a new low pressure system will pass near Hokkaido, and the winds will pick up again in some places, so you need to be careful.




Tomorrow, the 30th (Sunday), will be affected by low pressure and fronts mainly in northern Japan. In Hokkaido and Tohoku, where the cold front will pass, the atmospheric conditions will become unstable, causing temporary rain and thunderstorms in some places, especially in areas along the Sea of Japan.
Even in areas on the Sea of Japan side where there is no umbrella symbol in the weather forecast, such as Hokuriku and San'in, there is a possibility of showers in a narrow area after the afternoon.

The areas on the Pacific side of Tohoku and the Pacific side west of Kanto are often sunny. Temperatures will be higher in many places than on Saturday the 29th due to warm southerly winds heading towards the low pressure system. There are likely to be places in Kyushu where the temperature will be similar to October. Following on from the 29th, it will be a good day for tourists, and it looks like we will be able to enjoy viewing the autumn leaves.

[1-month forecast] Midwinter cold air will attack from the first week of December. Be careful of "sudden cold and heavy snow"

2025/11/28 15:40

The Japan Meteorological Agency has announced the weather outlook (1 month forecast) from November 29th to December 28th.



Over the next month, it is likely to be affected by low pressure
The area around Japan is likely to experience a winter-like atmospheric pressure pattern.

Precipitation will be higher on the Sea of Japan side of northern and eastern Japan.

On the other hand, on the Pacific side, there is little precipitation and the air is dry, so
caution must be taken when handling fire and preventing the spread of infectious diseases.


On the Sea of Japan side of northern Japan, the amount of snowfall is expected to be at or above normal,
especially on the Japan Sea side of the Tohoku region, starting around December 4th.
At this time of year, there is a possibility that it will be the heaviest snowfall of the year. (From early weather information)



Please be careful of rapid snow accumulation and poor visibility due to blizzard.

During snowfall or snowfall, driving a car without winter tires is extremely dangerous.
If you haven't changed your car to winter tires yet,
it might be a good idea to do so during the mild weather this weekend.

Also, please refrain from going out during stormy weather.





Looking at the weekly temperature forecast,
the first week (November 29th to December 5th) is expected to be high in northern Japan, Okinawa and Amami regions,
to be near or above normal in eastern Japan, and near normal in western Japan.

However, in the second week (December 6th to 12th), temperatures are likely to fluctuate significantly, as they will be low throughout most of the country, and
will be quite low in some places.

The third and fourth weeks (December 13th to 26th) are expected to be similar to normal.
From mid-December to Christmas, it looks like it will be as cold as usual.

In addition, the Sea of Japan side of northern and eastern Japan is more likely to be affected by low pressure systems,
and the winter-type pressure pattern is expected to strengthen,
, increasing the possibility of heavy rainfall compared to the December forecast in the three-month forecast
released on November 25th.

When strong cold air arrives, it is possible that the cold air will suddenly be as cold as mid-winter, increasing the amount of snow, and the cold will suddenly become severe.

In December, you need to be careful about sudden cold weather and heavy snow.

Out-of-season yellow dust often comes to Japan from mainland China. Be careful of yellow dust from the start of December.

2025/11/28 12:12

Today, the 28th (Friday), yellow dust blown up by strong winds from the Gobi Desert and other areas is expected to be blown towards the vicinity of Japan by winds in the sky.



Yesterday, the 27th (Thursday), a low pressure system moved east-northeast across the Sea of Japan, and a cold front passed near western Japan.
During the night, yellow dust came flying over western Japan, where a cold front had passed.
Today, the 28th (Friday), a cold front passed through eastern Japan and Tohoku and reached the eastern seaboard of Japan.
For this reason, yellow sand will come not only to western Japan but also to eastern Japan and Tohoku.



Visibility is expected to be less than 10 kilometers mainly in western and eastern Japan.
Depending on the region, this may have an impact, such as getting dirty cars and laundry.
Please be aware that if the visibility is less than 5 kilometers, there is a risk of traffic problems.
If you have hay fever or respiratory illnesses, your symptoms may worsen, so please take all possible precautions.

In addition, from Sunday, December 30th to Monday, December 1st, a low-pressure front accompanied by a front will develop in the northern Sea of Japan and move northeast toward the vicinity of Sakhalin.
The front is expected to pass near northern Japan.
After this low pressure system and front pass near Japan, yellow sand will be widely spread over Hokkaido on the 30th (Sunday) and from Kyushu to Hokkaido on December 1st (Monday).



Kosa is most often observed in spring (March to May).
This is because there is nothing to cover the ground in spring, and dust tends to fly around.
The ground is covered with plants in the summer and fall, and with snow and ice in the winter, suppressing the occurrence of yellow dust. However, this year, there was little rain in the outbreak area and dry conditions continued, so strong winds caused by low pressure systems tend to blow up yellow dust, making it easy for yellow dust to fly even at this time of year.
Please make sure to check the information on yellow sand frequently this year, even in the fall and winter.

Weather today, the 28th (Friday): Rough weather in northern Japan, sunshine on the Pacific side

2025/11/28 06:14

Today, the 28th (Friday), a low pressure system is expected to pass near Hokkaido, and a front is expected to pass through northern and eastern Japan. The area near Japan is gradually becoming winter-like atmospheric pressure, and there is a risk of rough weather mainly on the Sea of Japan side, so caution is required.



The weather is likely to be rainy on the Sea of Japan side of northern Japan. In addition, it is likely to rain in the morning in eastern Hokkaido, and there is a risk of heavy rain. Please be careful of lightning and gusts of wind. In the afternoon, cold air will move in and the weather will gradually turn to snow from Hokkaido to northern Tohoku. The wind is strong and there are places where it snows, so you need to be careful.
The weather on the Pacific side will gradually improve.
Please be careful when choosing your clothes, as it gets colder at night than in the morning.

Clouds will spread from Hokuriku to the Sanin area, and there is a possibility of showers. It's a good idea to bring rain gear such as a folding umbrella when going out.

On the other hand, sunlight will reach a wide area from the Kanto region to the west of the Pacific Ocean. In the Kanto and Tokai regions, the sunlight seems to feel warm during the day. Please be aware of the temperature difference between morning and evening and during the day. Temperatures in western Japan are slow to rise, so jackets are likely to be useful.

Summary of weather and temperature (November 16th to November 22nd) Winter-type atmospheric pressure distribution - Severe cold across the country - Over 100 cm of snowfall in Sukayu, Aomori Prefecture

2025/11/27 21:08

This is a summary of the weather and temperature from November 16th to November 22nd, 2025.

[About this period's weather]
#Characteristics of atmospheric pressure distribution
On the 16th, the vicinity of Honshu was widely covered by a mobile anticyclone. A low pressure area near northeastern China is moving eastward. Around 9:00 a.m., a low pressure system accompanied by a front formed north of Vladivostok and moved east-northeast while developing. On the 17th, a rapidly developing low pressure system moved east-northeast across the Sea of Okhotsk. A cold front extending from a low pressure system passes through northern and western Japan. From the afternoon onward, the atmospheric pressure shifted to a winter-like pattern. On the 18th, a developed low pressure system moved eastward through the Sea of Okhotsk. There is a strong winter-like atmospheric pressure pattern near Japan. On the 19th, high pressure rose from the continent, and the winter-like pressure pattern around Honshu gradually loosened. On the 20th, a low pressure system accompanied by a front moved east-northeast near the Mamiya Strait. Another low pressure system moved eastward south of Kanto. On the 21st, a low-pressure system accompanied by a front passed over Sakhalin and moved into the Sea of Okhotsk. A cold front extending from a low pressure system passes through northern and eastern Japan. A winter-like atmospheric pressure pattern was observed mainly in northern Japan. On the 22nd, a high-pressure system centered in central China stretched out near Honshu. In northern Japan, the winter-like atmospheric pressure pattern has gradually loosened.


#Precipitation
On the 16th, the area around Honshu entered a high-pressure zone, and there was almost no precipitation during the day, but over the Izu Islands, rain clouds developed locally due to the moist air moving to the east, and heavy rain was observed. On the 17th, rain became heavier in northern Japan and Hokuriku, where the front was passing, until around noon. In the afternoon, the cold air gradually moves south. The rain turned to snow, and the snow became heavier in Hokkaido at night. On the 18th, intermittent heavy snow fell in northern Japan. In Sukayu, Aomori Prefecture, snow depth exceeded 100 cm and a heavy snow warning was issued. The Kanto region is experiencing showers due to a trough in atmospheric pressure and cold air in the upper atmosphere. On the 19th, it rained mainly on the Sea of Japan side from northern Japan to the San'in area, and there was snow in places along the mountains in Tohoku and Hokuriku. As the afternoon progresses, the winter-like atmospheric pressure pattern gradually loosens, and the area of rain and snow shrinks. On the 20th, with the approach of a low pressure system and front, it began to rain on the Sea of Japan side of northern Japan, and the rain was somewhat heavy in Hokkaido. On the 21st, snow and rain fell from the Sea of Japan side of northern Japan to the Hokuriku region, with localized precipitation becoming heavier. On the 22nd, rain and snow fell mainly from the Sea of Japan side of northern Japan to Hokuriku, accompanied by a cold air in the sky. The rain on the Sea of Japan side subsided by the afternoon.


#Temperature
On the 16th, a high pressure system covered the area, and the sunlight reached the country, bringing temperatures to about normal or slightly higher than normal. Osaka recorded a temperature of 20.9c, similar to late October. On the 17th, warm air flowed in from the south toward a front and low pressure system, resulting in higher-than-normal temperatures across the country, with many places from western Japan to the southern part of Tohoku exceeding 20 degrees Celsius. On the 18th, a strong cold air in the sky moved southward, and the cold became stronger across the country, with temperatures in many places reaching the same level as December. On the 19th, the morning was extremely cold due to the influence of cold air in the upper atmosphere, and some places experienced the coldest weather of the season. The morning minimum temperature in central Tokyo was 5.1c, a new low for the season. During the day on the 20th, temperatures across the country reached temperatures typical of this time of year. On the other hand, in Naha, where northerly winds blew, the temperature reached 22.9 degrees Celsius, similar to early December. On the morning of the 21st, the weather became clear west of the Kanto region, and radiation cooling became stronger, making the weather even colder. The temperature in central Tokyo is on par with the 5.1c recorded on the 19th, the coldest temperature of the season. In the morning of the 22nd, the inland areas of western and eastern Japan cooled down due to radiation cooling, and in the daytime, sunlight reached the area and temperatures rose. The daily temperature range in Fuchu City, Tokyo reached 15.7c.



# Weather summary for this period (November 16th to November 22nd)
The average temperature becomes a winter-like pressure pattern in the first half and second half of the period, and cold air moves southward. There were many days when cold air prevailed, and temperatures were below normal nationwide. Additionally, the area around Honshu is often covered in high pressure, and the effects of radiation cooling have made mornings even colder, with temperatures in central Tokyo reaching their lowest levels this season.
Precipitation was in a winter-like atmospheric pressure pattern, with some places on the Sea of Japan side of northern Japan and the Hokuriku region having higher than normal precipitation. On the other hand, the Pacific side of northern Japan, the Pacific side of eastern Japan, and western Japan were much lower than normal.
Due to the effects of cold air in the upper atmosphere, there were some locations on the Sea of Japan side of northern Japan where the sunshine hours were less than normal, but there were many locations from eastern to western Japan where the sunshine hours were at or above normal.

[Forecast of flying yellow dust] Will it fly to western Japan tonight and eastern Japan tomorrow morning

2025/11/27 12:08

Yellow dust kicked up in the Gobi Desert is being blown away by strong westerly winds and approaching Japan.



Yellow sand will begin to fly to western Japan on the night of today, the 27th (Thursday),
, and when the date changes to tomorrow, the 28th (Friday),
yellow sand is expected to start flying to western Japan and Hokuriku.



It is expected that it will spread widely into the Kanto and Tohoku regions on the morning of the 28th (Thursday), and there is a risk that the visibility will be poor due to the influence of
yellow dust.


The sky may become hazy, and
yellow sand may adhere to cars and laundry outdoors.

Also, please be aware that if the visibility is less than 5 kilometers,
aircraft and other traffic may be affected.

*Visibility is the distance that can be seen in the horizontal direction.

The aftermath of the Kuroshio meander continues, with sea surface temperatures lower than normal near the Boso Peninsula [Ocean Summary November 16-22, 2025]

2025/11/27 11:23

The Japan Meteorological Agency and Japan Coast Guard have announced that the Kuroshio Current Meander will end in April 2025 (announced on August 29, 2025).

According to JAMSTEC's ``Kuroshio Watch,''
the aftermath of the Kuroshio meander continues.
A meander occurs as the vortex that was torn off from the Kuroshio is absorbed, and
the meander is about to flow away to the east.
It is said that the Kuroshio current is separated from the Boso Peninsula due to the meandering.



Sea surface temperatures are lower than normal near the Boso Peninsula, where the Kuroshio Current leaves the shore.

Below is the ocean summary from November 16th to 22nd, 2025.



#Pressure distribution and waves
On the 16th, the waves in the waters around Japan were calm, covered by a mobile anticyclone.

On the 17th, a low pressure system accompanied by a front moved eastward near Sakhalin, and a front extending from the low pressure system passed through Honshu.
At night, wave heights of more than 4 meters occurred over a wide area of Japanese waters.

On the 18th, a developing low pressure system moved toward the Sea of Okhotsk, and
the Sea of Okhotsk became a major storm with wave heights of 6 meters.

On the 19th and 20th, a high pressure system came from the west,
and the high waves in the waters surrounding Japan subsided.

On the 21st, a front passed over Honshu, and the winds from the north became stronger.
Waves were high in Japanese waters, with wave heights of around 3m.

On the 22nd, high waves remained off the coast of Sanriku, but an anticyclone extended from the continent and the waves became calm.




#Sea surface temperature

Sea surface temperatures in Japanese waters continue to be lower than normal along the coast of Hokkaido.

The central and western parts of the Sea of Japan continue to experience sea levels that are at or above normal.
The East China Sea remained at or above normal.

On the Pacific side, conditions remained below normal in the south of Japan, and
waters below normal prevailed off the coast of the Tokai region and near the Izu Islands.
The temperature in the east of Japan was significantly higher than normal, with temperatures up to 3 C higher.

Off the coast of Sanriku, areas with lower than normal temperatures have expanded.
Off the southeastern coast of Hokkaido, the sea level is considerably lower than normal, and
The Sea of Okhotsk continues to be at normal levels.

Front passing, atmospheric instability. Be careful of lightning, tornadoes, strong gusts, and sudden heavy rain!

2025/11/27 09:44

Front passing, atmospheric instability. Be careful of lightning, tornadoes, strong gusts, and sudden heavy rain!

There is a high pressure system near Primorye and Tohoku that is moving eastward.
On the other hand, there is a low pressure system in the northeastern part of China, the western part of the Sea of Japan, and the western part of the Korean Peninsula, and it is moving northeast and east.

Currently, there are some places where there are a lot of clouds, but there are many places where it is sunny.

Today, a low pressure system will move northeast across the Sea of Japan, and a front will pass from western Japan to northern Japan until the 28th.
Also, on Friday the 28th, cold air with temperatures below -27 degrees is expected to flow approximately 5,500 meters above northern Japan.



Due to the effects of warm, humid air flowing toward the low pressure system and front, and cold air above, the atmospheric conditions will be extremely unstable in some places from western to northern Japan from noon on the 27th (Thursday) to the 28th (Friday).
From Okinawa to the Tokai region, it will be sunny in some places, but rain and thunderstorms are expected in places.
There will be more rain and thunderstorms on the night of the 27th (Thursday) from Kanto and Hokuriku to northern Japan, and there will be snow in some places in Hokkaido.



From western Japan to northern Japan, please be careful of lightning, tornadoes, severe gusts, and sudden heavy rain from before noon on the 27th (Thursday) to the 28th (Friday).
If there are signs of a developing cumulonimbus cloud approaching, please take every precaution to ensure your safety, such as moving inside a building.
There is also a risk of hail, so please be careful when managing crops and agricultural facilities.

Rain due to low pressure and front; Hokkaido storm warning; unseasonal yellow sand flying again after front passes [Weekly weather forecast]

2025/11/26 12:19

#Rain due to low pressure and front; Hokkaido is on alert for storms; fear of severe storms
#After the front passes, unseasonable yellow dust is flying again
#Starts in December Gradually the pressure distribution is high in the west and low in the east
#Due to the trend of high temperatures, December gradually returns to normal levels



#Rain due to low pressure and front Hokkaido is on alert for storms There is also a risk of heavy storms.A low pressure system will move from the Korean Peninsula through the Sea of Japan to the Sakhalin area from tomorrow the 27th (Thursday) to the 28th (Friday).
Also, the front is expected to pass through western and northern Japan.
Atmospheric conditions will be unstable due to the effects of warm, humid air heading towards a low pressure front and cold air above.
Tomorrow, the 27th (Thursday), it is expected that there will be some rain in Okinawa, which is on the edge of a high pressure system.
With the eastward movement of the low pressure system and the passage of the front, the weather is going downhill from the west.
It will start raining in Kyushu in the morning, and in the afternoon there will be more rain in western Japan.
It will begin to rain in some places in the Tokai and Hokkaido areas from the evening, and it is expected to start raining in more places north of the Kanto region by late evening.
There will be places in Hokkaido where there will be snow.
Heavy rain with localized thunderstorms is expected, mainly in western Japan and Hokuriku.

The next day, on the 28th (Friday), there will be rain in places from northern Kinki to the Sea of Japan side of Northeastern Japan, and due to the influence of a pressure trough in the Tokai region, rain clouds will gather around Shizuoka Prefecture.
Hokkaido is expected to have snow in some places in central Hokkaido.
There will be places on the Pacific side of Hokkaido where the rain will gradually return to sunshine.



A low-pressure system is expected to move toward the Sea of Okhotsk from the 28th (Friday) to the 29th (Saturday) tomorrow, causing rough weather in Hokkaido.
A strong wind is blowing on the Sea of Japan side of Hokkaido, and there is a possibility that it will become a warning-level storm.
Also, depending on the degree of development of the low pressure system, there is a risk of severe storms, which may affect transportation.
Please pay attention to the latest information.

#After the front passes, unseasonable yellow sand is expected to fly over Japan
After the front passes, yellow sand is expected to fly over Japan from the night of the 27th (Thursday) tomorrow to the 28th (Friday).
Kosa often flies in spring. The unseasonable yellow dust will continue to blow again from the 25th (Thursday) to the 26th (Wednesday).
Kosa is expected to hit Kyushu and China on the night of the 27th (Thursday), and over a wide area from Okinawa to Hokkaido on the 28th (Friday).



#Starts in December Gradually, the atmospheric pressure will shift to high in the west and low in the east
From December 2nd (Tuesday) to 3rd (Wednesday), the atmospheric pressure will be high in the west and low in the east, with the Pacific side expected to be sunny and dry, Hokuriku and southern Tohoku to experience rain, and northern Tohoku and Hokkaido to experience some snow.





#December will gradually return to normal due to the trend of high temperatures
Over the coming week, the flow of cold air will be weak, and there will be many days with pleasant and sunny weather.
However, the sunnier the day, the stronger the effect of radiation cooling, and the mornings and evenings are often cooler, so you need to be careful about the temperature difference throughout the day.
The trend towards high temperatures gradually returns to normal in December, allowing you to feel the progress of the season.

Today, the 26th, the atmospheric conditions are unstable on the Sea of ??Japan side from Tohoku to the Sanin area. Be careful of strong gusts that could cause lightning or tornadoes.

2025/11/26 07:48

Today, the 26th, a low pressure system will move over the eastern seaboard of Japan, creating a temporary winter-like pressure pattern around Honshu. Atmospheric conditions are expected to be unstable along the Japan Sea side from Tohoku to the San'in area due to the influence of cold air in the upper atmosphere.



Looking at the forecast for the probability of lightning strike at 9am today, the area around Hokuriku has a particularly high probability. Thunderclouds are likely to develop in the southern Tohoku region, northern Kinki region, and in the shadows of the mountains. Be careful of heavy rain that falls in a short period of time, lightning strikes, violent gusts of wind such as those caused by tornadoes, and hail.

The unstable atmosphere is expected to continue into the afternoon of today, the 26th. After the evening, the area of rain will narrow, and the weather will gradually improve in areas along the Sea of Japan.