Today's weather on the 7th (Sunday): A low-pressure system moves eastward along the southern coast of Honshu; there is a risk of extremely heavy rain on the Pacific side of western Japan.

2026/06/07 06:32

Today, the 7th (Sunday), a low pressure system that has changed from a tropical cyclone is expected to move along the southern coast of Honshu, accompanied by a front. As moist air from the tropics flows towards the low pressure system and front, rain clouds will develop from western Japan to eastern Japan, mainly on the Pacific side, and there is a risk of heavy rain.
There are a lot of clouds in northern Japan, so it looks like the sky will be perfect for folding umbrellas.



Due to the influence of a low pressure system that has changed from a tropical cyclone, it will rain widely in western Japan from the morning. The sky looks like it will rain easily throughout the day. Especially on the Pacific side, there is a risk of extremely heavy rain of more than 50mm per hour. Please be wary of landslides, flooding of low-lying areas, and rising and flooding rivers.

In the afternoon, the rain will spread to eastern Japan. It looks like it will start raining in the Kanto region from the evening. Please bring rain gear even if it is not raining when you go out.

The sky is dominated by clouds even in northern Japan. There is a possibility of rain showers in many places, so it is a good idea to have a folding umbrella with you when going out.

Temperatures across the country will be at or below normal in many places. Temperatures in northern Japan are likely to be higher than the previous day, but will still be below normal. Please be careful when choosing your clothes.
In many places from eastern Japan to western Japan, the weather will be near normal. It seems to be a comfortable place to spend time during the day.

Weather from tonight to tomorrow 7th (Sunday) Rain gradually expands to the east. Southern Kyushu and Shikoku are also on high alert for heavy rain

2026/06/06 18:45

It will rain in many places in Amami and Okinawa tonight, and it will start raining widely in southern Kyushu. Active rain clouds are expected to cover the Shikoku region tomorrow, the 7th (Sunday). Please take extreme precautions against landslides in southern Kyushu, Amami, and Shikoku. Also, please be careful of landslides in Okinawa.



The front will slowly move northward from tonight until tomorrow 7th (Sunday), and the low pressure on the front is expected to pass near southern Kyushu during the daytime of tomorrow 7th (Sunday). Atmospheric conditions will be extremely unstable around fronts and low pressure systems.




It will rain in many places in Amami and Okinawa tonight, and heavy rain is expected to be accompanied by thunder in some places. Rain will begin to fall widely in southern Kyushu at night, and there is a risk of localized extremely heavy rain and thunderstorms into tomorrow, the 7th (Sunday). In Shikoku, there will be intermittent rain tonight, mainly on the Pacific side, due to the influence of moist air flowing in, and tomorrow, the 7th (Sunday), there will be extremely heavy rain and thunderstorms in some places due to the effects of low pressure and fronts.


The Nansei Islands and western Japan are expected to experience very heavy and heavy rainfall.
The 24-hour precipitation expected from 18:00 on the 6th to 18:00 on the 7th is expected to be high in places,

Shikoku region 300mm
Southern Kyushu/Amami region 250mm
Okinawa region 100mm
Then, the 24-hour precipitation expected from 18:00 on the 7th to 18:00 on the 8th is expected to be high
Shikoku region 100mm

.
If a linear precipitation band occurs, there is a risk of further rainfall locally.

Be wary of landslides, flooding of low-lying areas, rising river waters, and be careful of gusts of wind such as tornadoes.

``Level 4 Landslide Danger Warning'' issued on Kikaijima to be on guard against landslides

2026/06/06 12:43

As of 12:00 today, a "Level 4 Landslide Danger Warning" has been announced for Kikai Town, Kagoshima Prefecture. The risk of landslides has increased due to the heavy rains so far, so please evacuate everyone from dangerous areas immediately.



A front is extending near the Nansei Islands, and there are places in the Nansei Islands that are experiencing heavy rain. At 10:23 a.m. on the 6th, a level 4 landslide warning was announced for Kikai Town, Kagoshima Prefecture. In Kikai Town, Kagoshima Prefecture, the risk of landslides is increasing due to heavy rain. Heavy rain is expected until early afternoon today, and then it is expected to continue to rain intermittently until dawn tomorrow. The risk of landslides is increasing, so please evacuate everyone from dangerous areas immediately.

It may be dangerous to evacuate in haste. If it is difficult to evacuate outdoors, such as when the rain is falling in such a way that you feel in danger or the road is flooded, please ensure your own safety by moving to a room on the second floor or higher, on the opposite side of the cliff or slope.


What is "Level 4 Landslide Danger Warning"




A danger warning is a forecast that warns of a dangerous situation that is likely to cause a serious disaster. There are danger warnings for flooding, heavy rain, landslides, and storm surges, and they are announced with "Level 4" added to the name.
Level 4 landslide warning is issued when there is a risk of landslides occurring due to typhoons, torrential rain, etc.

When a Level 4 Landslide Hazard Warning is announced, everyone should evacuate from the dangerous area.

[1-month forecast] Temperatures are higher than normal in eastern and western Japan and Okinawa/Amami, susceptible to the effects of low pressure and fronts.

2026/06/05 23:49

On the 4th (Thursday), the Japan Meteorological Agency announced the forecast for the month from June 6th to July 5th.

Over the next month, temperatures will be high in eastern and western Japan, as well as Okinawa and Amami, as the region will be easily covered by warm air. In northern Japan, temperatures will be low in the first week and high in the second week, with large fluctuations in temperature.

As it is susceptible to the effects of low pressure systems, fronts, and humid air, precipitation will be heavy in Okinawa and Amami, and will be at or above normal on the Pacific side of northern, eastern, and western Japan.
Sunshine hours are expected to be at or below normal on the Pacific side of eastern and western Japan.



Prediction results from the numerical forecast model.
The monthly average sea level pressure (figure on the left) shows that the pressure is higher than normal near the Sea of Okhotsk, and a Sea of Okhotsk anticyclone is expected. On the other hand, the atmospheric pressure will be lower than normal over the Pacific side of eastern and western Japan and Okinawa/Amami, making it susceptible to the effects of fronts and humid air.

The temperature at an altitude of approximately 1,500 meters (right chart) is lower than normal in northern Japan, and there will be periods when it is likely to be covered in cool air. On the other hand, eastern and western Japan and Okinawa/Amami are expected to be higher than normal and likely to be covered by warm air.





Forecast of average temperature, precipitation, and sunshine hours for the next month, and weekly average temperature (probability of occurrence (%)).

Temperatures over the next month are expected to be near normal in northern Japan, but high in eastern and western Japan and Okinawa and Amami.

The Sea of Japan side of eastern and western Japan will have many cloudy and rainy days, similar to normal years, and the Pacific side of eastern and western Japan will have more cloudy and rainy days than normal.
Precipitation will be at or above normal on the Pacific side of northern, eastern, and western Japan, and will be above normal in Okinawa and Amami.
Sunshine hours are expected to be at or below normal on the Pacific side of eastern and western Japan.

In northern Japan, the weather will change every few days during the first half of the period, but there will be more cloudy and rainy days compared to normal years, and the second half of the period will have many cloudy and rainy days, similar to normal years. In northern Japan, the temperature will be low in the first week and high in the second week, and there will be large fluctuations in temperature.
Please be careful of the temperature difference and dress appropriately to keep yourself in shape.

In Okinawa/Amami, the first half of the period will have more cloudy and rainy days than normal years, and the second half of the period will have many sunny days, similar to normal years.

The rainy season has already been announced in western Japan, from Okinawa to Kinki. Okinawa/Amami and the Pacific coasts of eastern and western Japan may experience higher than average rainfall, so please prepare for heavy rain disasters and check the latest weather information.
In addition, temperatures are expected to be higher than normal in eastern and western Japan, Okinawa, and Amami. There are likely to be some days where it will be hot and humid, so please take precautions against heatstroke.

Widespread rain over the weekend; stormy weather possible on the 8th

2026/06/05 22:49

There is a low pressure system in the central Japan Sea that is moving northeast. A front is stationary in the south of Japan, and a low pressure system above the front is moving southeast. There is a tropical cyclone near Taiwan that is moving north. Due to the influence of the front, it is currently raining in the Nansei Islands, and thunder has been observed near Okinawa due to the heavy rain clouds. In other areas of the country, the sky is also cloudy.



Tomorrow, a low-pressure system in the Sea of Japan will approach west of Hokkaido, causing rain in northern Japan, mainly on the Sea of Japan side of the Tohoku region. There will be some sunshine from eastern to western Japan, but the weather will turn downward from the west due to the approach of a low pressure system. Rain is expected to start in the Kyushu region in the evening.



The area of rain will further spread into the 7th (Sunday), and stormy weather is expected nationwide on the 8th (Monday). Check the latest weather forecast.

There is a risk of heavy rain in Kagoshima Prefecture from the 6th to the 7th (Sunday) tomorrow, and in Okinawa on the 7th (Sunday). Be careful of landslides and flooding in low-lying areas.

2026/06/05 19:08

The rainy season front is moving from southern China to the Nansei Islands and extending to the east of Japan. Additionally, a tropical cyclone is moving north-northeast near Taiwan, and rain clouds are developing over the Nansei Islands, where moist air is flowing.
In Amagi, Amagi Town, Kagoshima Prefecture, heavy rain of 42.5 mm was observed in the hour until 16:59.

The rainy season front is expected to move northward to the southern part of Kyushu from tomorrow the 6th (Saturday) to the 7th (Sunday) the day after. The tropical cyclone will move northward in the East China Sea, and the warm, humid air surrounding the tropical cyclone will flow toward the Baiu front, causing extremely unstable atmospheric conditions in the Nansei Islands.

In the Okinawa main island region and the Sakishima Islands, there are expected to be very heavy to heavy rain in some places, and in Kagoshima Prefecture, from the afternoon of the 6th (Saturday) tomorrow to the 7th (Sunday). Depending on the degree of rain cloud development, there is a risk of heavy rain reaching warning level. Please be careful of landslides, flooding of low-lying areas, and rising river waters.
Also, please be careful as there is a risk of lightning strikes and strong gusts of wind such as tornadoes.



#Forecasted amount of rain (in areas where there is a lot)
+1-hour precipitation expected for today, 5th
Miyakojima region 30mm
Yaeyama region 30mm
+1-hour precipitation expected for tomorrow 6th (Sat)
Kagoshima prefecture (Am) (excluding Mi region) 40mm
Amami region 40mm
Miyakojima region 40mm
Yaeyama region 50mm
Okinawa main island region 30mm
+24-hour precipitation expected by the evening of tomorrow 6th (Saturday)
Kagoshima prefecture (excluding Amami region) 50mm
Amami region 80mm
Okinawa main island Region: 60mm
Miyakojima region: 80mm
Yaeyama region: 120mm
+Sunday evening on the 7th Expected 24-hour precipitation
Kagoshima Prefecture (excluding Amami region) 200mm
Amami region 120mm
Okinawa main island region 60mm
Miyakojima region 80mm
Yaeyama region 60mm

[Ocean Summary] Waves are gradually increasing south of Okinawa due to Typhoon No. 6 Sea surface temperatures in the Sea of Japan and East China Sea are higher than normal

2026/06/05 16:53

Due to the effects of Typhoon No. 6, the waves in the south of Okinawa gradually became higher.
Sea surface temperatures in the Sea of Japan and the East China Sea were about 3 C higher than normal.
Below is a summary of the ocean (May 24-30, 2026)



#Pressure distribution and waves
On the 24th and 25th, a front passed from the continent to the Nansei Islands, extending from the south of Japan to the east of Japan, and the low pressure on the front moved eastward from the south of Japan to the east of Japan.
The waves were high in the south of Japan and the east of Japan.
From the 26th to the 27th, the seas near Japan remained calm.
On the 28th, the gradient in atmospheric pressure increased between the low pressure in the northern Sea of Japan and the high pressure far east of Japan, causing waves to become higher east of Japan.
From the 29th to the 30th, a low-pressure system accompanied by a front moved northward over the Sea of Okhotsk, and the front passed from the Sea of Okhotsk to the east of Japan, extending from the south of Japan to the waters near the Nansei Islands.
There were places in the east of Japan and the Sea of Okhotsk where waves rose and became barges.
On the 30th, Typhoon No. 6 was developing in the east of the Philippines and moving northwest, and the waves gradually became higher in the south of Okinawa.



#Sea surface temperature
Sea surface temperatures in the northern part of the Japanese Sea were at normal levels, but in the central and western continental areas, sea areas continued to be significantly higher than normal, reaching up to 3 C higher. In addition, areas in the East China Sea that were much warmer than normal expanded, and were up to 3 C warmer.
The waters around the Nansei Islands were at normal levels, and areas south of Japan where the waters were slightly higher than normal expanded.
The waters off the Tokai coast are at normal levels, while the eastern Kanto region continues to have higher than normal waters.
Off the coast of Sanriku, the area of lower-than-normal waters has shrunk.
The waters off the southeastern coast of Hokkaido remained at normal levels, and the seas near the Chishima Islands and the Sea of Okhotsk continued to operate at normal levels.

[Be careful of trends in tropical cyclones] There is a risk of warning-level heavy rain mainly on the Pacific side of western Japan on the 7th (Sunday) (commentary: weather forecaster Atsuko Miyake)

2026/06/05 13:37

Over the weekend, a low pressure system with cold air is expected to approach from the north, and a tropical cyclone is likely to approach from the south.



This is the forecasted weather map for tonight.

Although the Baiu front has moved away from Honshu, there is a tropical cyclone to the south of the Baiu front.
The tropical cyclone is expected to gradually move northward into tomorrow (Saturday).

Also, the low pressure system near Hokkaido is expected to approach northern Japan tomorrow (Saturday).
The atmosphere is likely to be unstable in northern Japan due to the presence of cold air above the low pressure system.



First, let's take a look at the rain and wind associated with the northern low pressure system.

It is expected to start raining on the Sea of Japan side of northern Japan tomorrow morning.

In particular, strong winds blow from the east in Hokkaido, especially in the Oshima Peninsula and Ishikari region, so
there is a possibility that a storm warning will be issued in the morning.

In the afternoon, the area where the rain falls will become narrower, but the strong easterly winds are likely to continue.

Please be careful of strong winds in Hokkaido tomorrow, and be careful of sudden strong rain, lightning strikes, and gusts of wind.



Next, we will look at the future movements of the Baiu front over the southern seas and the tropical cyclone.
This tropical cyclone has very warm and humid air of tropical origin.

As moist air flows towards the seasonal rain front, it is likely to increase front activity.

The tropical cyclone (or extratropical cyclone) and the rainy season front are expected to become one until the 7th (Sunday).
Furthermore, a low pressure system will develop and move along the southern coast of Honshu until the 8th (Monday).

In the Pacific side of western and eastern Japan, which are close to low pressure systems and fronts, there is a possibility of warning-level heavy rain from
7th (Sunday) to 8th (Monday).



Let's take a look at the possibility of heavy rain warnings being announced (early warning information).
On the afternoon of the 7th (Sunday), there is a possibility that heavy rain warnings will be issued widely
mainly in the Pacific side of Kyushu, Shikoku, and the Kinki region.

In addition, heavy rain warnings may continue to be issued in Tokushima and Mie prefectures into the 8th (Monday).
The heavy rain from the recent typhoon has already loosened the ground.

Even a small amount of rain increases the risk of landslides, so please be careful and alert to the direction of the rain.

Please carefully observe your surroundings,
If you feel that things are different from usual, please move to a safe place as soon as possible.



From the weekend to the beginning of the week, there is a possibility that the rainy season will be announced in the Tokai region and Kanto-Koshin region, where the rainy season has not yet begun.



, we will look at the detailed weather of each place. The weather is Saturday and Sunday.

Tomorrow (Sat), there will be many sunny days around Honshu.
The temperature and humidity are high, making it feel quite hot and humid.
In southern Kyushu, it looks like rain may start as early as tomorrow night.

On the 7th (Sunday), rain is expected to begin in the morning in western Japan, and gradually in the afternoon in eastern Japan.
Even with the rain, the temperature is high and it seems to be quite hot and humid.



Weekly forecast.
In northern Japan, a low pressure system that changes from a tropical cyclone is developing and approaching towards the end of the week.
Northern Japan needs to be careful about the rain and wind that will become stronger at the beginning of the week.

And in the Okinawa region, the rainy season front will remain stationary for a while,
there is a risk that heavy rain will continue.

There is a risk of warning-level heavy rain again in the Okinawa region, especially from Tuesday the 9th to Wednesday the 10th.

The rainy season has entered its second half in the Okinawa region.
Please be careful and be on guard against repeated heavy rains towards the end of the rainy season.

What day is tomorrow That fruit that ripens at this time of year...

2026/06/05 11:04

Do you know what day tomorrow June 6th is There are various anniversaries such as ``Musical Instruments Day'' and ``Drinking Water Day,'' but it is also ``Plum Day.'' Today I would like to talk about plums.

Why is the long rain in June called "tsuyu" in the first place The word "rainy season" originally came from China. In the lower reaches of the Yangtze River in China, there is a period of long rain in early summer when the plum fruits ripen yellow, and is called the ``yellow rainy season.'' It is believed that after that, the character ``yellow'' was omitted and the word ``rainy season'' came to be written. In Japan, ``rainy season'' has been pronounced as ``tsuyu'' since the Edo period. The pronunciation of ``tsuyu'' is said to come from the word ``dew,'' which means dampness, and the word has become established as a soft way to express humid air.

Plums have the property that their flower buds will not bloom properly unless they experience a certain period of low temperature. It also prefers a sunny location and well-drained soil, and does not like humidification. Plum is a rare flower that blooms in early spring when it is still cold. The lack of other flowers makes it easier to secure sunlight, which results in stable fruit production.

During this time of year, there are large changes in atmospheric pressure and the weather is not refreshing, so many people may be feeling unwell. Plums are rich in potassium, iron, vitamin C, vitamin E, dietary fiber, and citric acid, and have effects such as recovering from fatigue and restoring immunity. If you are not feeling well, please try eating plums. Let's survive the coming season!

Tropical cyclone to the west of the Philippines; pay attention to future trends

2026/06/04 19:16

As of 3:00 p.m. today, Thursday, April 4, there is a ``tropical cyclone'' that is a ``typhoon egg'' near the western coast of the Philippines, and it is moving northeast. The central pressure is 1002 hectopascals, and it is thought to be moving northeast at a speed of 20 kilometers per hour.
This tropical cyclone is expected to continue moving northeast and near Taiwan on the 6th (Saturday).



On the 7th (Sunday), this tropical cyclone will become an extratropical cyclone and will approach western Japan. The rainy season front will also move northward, extending the area of rain to western Japan.
There may be strong or heavy rain in some places, especially on the Pacific side of western Japan.



The low pressure system is expected to move east along the southern coast of Honshu by the end of the week, on the 8th (Monday).
Rain will fall from western Japan to eastern Japan, and there is a possibility that the amount of rainfall will be concentrated mainly on the Pacific side. Please pay close attention to future information.