High temperature trend continues nationwide next week Early weather information

2024/04/19 21:38


The Japan Meteorological Agency announced early weather information regarding high temperatures on Thursday the 18th. The average temperature for five days from around the 24th (Wednesday) in Tohoku to Okinawa and from around the 25th (Thursday) in Hokkaido is likely to be significantly higher than normal.

#5-day average temperature difference in each region

Hokkaido +3.1c or higher
Tohoku +2.7c or higher
Kanto-Koshin +2.6c or higher
Hokuriku +2.5c or more
Tokai +2.3c or higher
Kinki +2.5c or higher
China +2.3c or higher
Shikoku +1.8c or higher
Northern Kyushu +1.8c or more
Southern Kyushu/Amami +1.7c or more
Okinawa +2.0c or more

From now on, during Golden Week, there will be many places where the temperature will be 25c or higher during the day. At this time of year, we are not used to the heat, so we need to be careful about heat stroke. If you are active outdoors, don't forget to take precautions such as taking breaks and hydrating.

#What is early weather information
During this period, there is a greater possibility than usual of extremely high or low temperatures and snowfall (on the Sea of Japan side in winter), which only occur once every 10 years. This is information that you should be aware of at least 6 days in advance. During the period from 6 days to 14 days in advance, there is a 30% or higher probability that the average temperature will be ``quite high'' or ``quite low'' for 5 days, or a 30% or higher probability that the amount of snow will be ``quite heavy'' for 5 days. We will announce information when it is expected.

A cherry blossom front has landed in Hokkaido. From now on, the temperature will be low and it will slowly reach full bloom.

2024/04/19 16:51


Cherry blossoms bloomed in Sapporo and Hakodate yesterday, the 18th (Thursday), and the cherry blossom front has finally arrived in Hokkaido.

In normal years, the cherry blossoms bloom relatively quickly, taking about 3 to 4 days from flowering to full bloom.
However, this year, the temperature after flowering has been low,
The cherry blossoms bloom slowly, and until full bloom. It seems like it will take some time.


The week ahead Looking at the predicted maximum temperature in the forecast,

There will be a lot of clouds on Saturday and Sunday, and in Sapporo, the expected maximum temperature for tomorrow (Saturday) will be 10c,
about 3c below normal.
The wind will be cold and it will be chilly, so please dress warmly and enjoy cherry blossom viewing.

The temperature will rise to 14c on the 21st (Sunday), and it will be cloudy with flowers, but it looks like you can enjoy cherry blossom viewing.

In Hakodate, it will be sunny on the 21st (Sunday), and the temperature will rise to 17c, so you can enjoy cherry blossom viewing in the warm weather.

However, next week's temperature will be lower than in the past, and it looks like it will take some time for the cherry blossoms to bloom in full bloom.


Hokkaido ahead Looking at the flowering forecast,
is expected to bloom next in Obihiro around Wednesday, April 24th.
It is expected to arrive on April 26th in Muroran and around May 4th in Wakkanai.

The best time to see them is likely to be earlier than in normal years, and many places will reach their peak around the long holidays.

Yellow sand was observed in various places today as well. How long should I be careful

2024/04/19 14:45


Today, we are still observing yellow sand flying in various places.
Today, we are observing yellow sand in northern Kyushu and the Hokuriku region, and visibility is less than 10 kilometers in some places.

The meteorological observatories that observed yellow sand with a visibility of less than 10 kilometers by 12:00 on the 19th are:
Takesaki, Shimonoseki City...8 kilometers
Saga City Ekimae Chuo...8 kilometers
Minamiyama, Nagasaki City Temachi...9 km
Toyama...9 km
Kanazawa...10 km

In these areas, impacts such as yellow dust adhering outdoors are expected.

However, although the impact is smaller than yesterday, the impact of the yellow dust is expected to continue in similar areas until the end of today.

Continuing from yesterday, it seems better to take precautions such as washing your hands and face as soon as you get home, and brushing off yellow dust from your clothes before entering the house.

Also, if you have allergies, please wear a mask and refrain from ventilating your room.


Tomorrow morning It is expected that the effects of the yellow dust will be gone, and it will be possible to dry laundry outside.

Be careful of rain and heat this Saturday and Sunday

2024/04/19 14:38


Here are three weather points this Saturday and Sunday.

1,It's raining in western Japan. Be careful of landslides in areas where the shaking was strong
2, From Kyushu to Kanto-Koshin, it's a summer day with temperatures exceeding 25 degrees Celsius
3, In northern Japan, it's the best time to see cherry blossoms. What about Hokkaido

1,This Saturday and Sunday, the weather is going downhill from the west.
It will start raining in the Kyushu region from Saturday afternoon, and it is likely to rain over a wide area of western Japan at night.
Rain clouds are expected to spread over eastern Japan on Sunday.
The rain this time hasn't been falling for that long, so there doesn't seem to be any worry about heavy rain, but there are some areas where the ground was loose in areas that were shaken heavily by the recent earthquake. Even a little rain can cause landslides.
Please use the Japan Meteorological Agency's Kikikuru and other tools to stay safe.

2,Temperatures are likely to rise in the Kyushu-Kanto-Koshin region on Saturday.
It looks like it will be a summer day with temperatures of over 25c in many parts of the country, and the predicted maximum temperature in Yamanashi is 29c, which is just one step away from midsummer.
The temperature in Tokyo is 27c, which is about the same as late June
It will rain on Sunday, so it doesn't seem like the temperature will rise that much, but please take precautions such as hydrating frequently when going out. However, the temperature in the northern Tohoku region and Hokkaido region does not rise much even when the sun comes out, and it is lower than the temperature at this time of year, so a thick jacket will be useful even during the day.

3¤Regarding the current blooming status of cherry blossoms, we have received news that the cherry blossoms are in full bloom in the northern Tohoku region. Looks like you can enjoy cherry blossom viewing this weekend.
And yesterday, we received news of cherry blossom blooming from Sapporo and Hakodate in Hokkaido.
Looking at the predicted temperatures in Hokkaido, it looks like the temperature will continue to be lower than average until next Monday. For this reason, it seems that it will take some time until the cherry blossoms are in full bloom.
Temperatures are expected to continue rising from Tuesday onwards, and we are likely to receive news of full bloom after next weekend.
In addition, we expect to receive news of the blooming of cherry blossoms in Hokkaido around Golden Week.

Weather forecast for today, the 19th (Friday) when you return: Sunny from Kanto to the west, cloudy in northern Japan

2024/04/19 06:40


Today, the 19th (Friday) around the beginning of the night (18:00-21:00)
The area from Kanto to the west looks like it will be clear and sunny.

Meanwhile, northern Japan will continue to have cloudy skies and some rain.


A low-pressure system is expected to develop and move northward off the coast of Sanriku, and
there is a risk of stronger winds on the Pacific side of the Tohoku and Kanto regions.

On the other hand, the area west of the Tokai Sea will be within the range of high-pressure systems centered in the Northeastern District of China and the south of Japan, and the nights will likely be calm and clear.


Tonight, the temperature is expected to drop by 5 to 6 degrees Celsius in many places compared to the highest temperature during the day.

In areas west of the Kanto region where the weather is sunny,
it is a good idea to bring a thin coat when you return home.

On the other hand, temperatures in northern Japan tend to drop due to the effects of northerly winds blowing into low-pressure systems, and temperatures in Sapporo are expected to drop to 6c.

Especially in Hokkaido,
the cold weather will return tomorrow, the 20th (Saturday), so please take care of your health.

*Sunset time in various places

Sapporo 18:22
Sendai 18:17
Tokyo 18:18
Niigata 18:24
Nagoya 18:28
Osaka 18:33
Hiroshima 18:45
Ko-chi 18:40
Fukuoka 18:52
Naha 18:55

[Japan Meteorological Agency 1-month forecast] Temperatures will be high into May, with many rainy days on the Pacific side of western Japan and Okinawa

2024/04/19 05:35



It will be high nationwide because it is easily covered by warm air.

Temperatures are expected to be quite high across the country, especially during the first half of the period.


As there are periods when they are susceptible to the effects of low pressure systems and fronts,
most of the precipitation occurs on the Pacific side of western Japan and in Okinawa and Amami.

*Sunshine hours

It will be low on the Pacific side of western Japan, and it will be at or below normal on the Sea of Japan side of eastern and western Japan,
Okinawa and Amami.

Due to periods when the air is susceptible to humid air,
northern Japan is expected to be at or below normal.


*1 week (4/20 - 4/26)

In northern Japan, the weather changes every few days, but it is easily affected by humid air, and there are fewer sunny days than in normal years.

In eastern and western Japan and Okinawa and Amami, the weather changes every few days, but
is susceptible to the effects of fronts and low pressure,
with fewer sunny days compared to normal years.

*2nd week (4/27-5/3)

On the Sea of Japan side of northern Japan, the weather changes every few days.

On the Pacific side of northern Japan and the Sea of Japan side of eastern Japan,
the weather changes every few days, with many sunny days as in normal years.

On the Pacific side of eastern Japan, western Japan, and Okinawa/Amami, the
weather changes every few days, but they are susceptible to
influences such as fronts and low pressure, and there are fewer sunny days than in normal years.

*Week 3-4 (5/4-5/17)

On the Japan Sea side of northern Japan and Okinawa/Amami, the weather changes every few days.

On the Pacific side of northern Japan and in eastern and western Japan,
the weather changes every few days, with many sunny days as in normal years.

Early summer weather on Saturday and Sunday → Expansion of rain...Many rainy days into next week - Weekly weather

2024/04/18 20:00


On Saturday the 20th, a low pressure system that has developed over the sea east of Hokkaido will move forward.

In addition, a low pressure system accompanied by a front is expected to move from the East China Sea to the vicinity of Honshu through the 21st (Sunday).

After that, the area around Japan will be in an area of high pressure from the beginning of the week on the 22nd (Monday), but soon the next front and low pressure will arrive near Honshu from the east.

From around the 23rd (Tuesday) to the 24th (Wednesday), it passed near Honshu while developing.

The low pressure system will move away to the east of Japan around the 25th (Thursday), and the area around Japan is likely to be within the high pressure zone.


During the day on the 20th (Saturday), it will be sunny over a wide area, mainly in Honshu.

The predicted maximum temperature in Tokyo and Osaka is 26c, which is likely to be a summer day.

On the other hand, clouds tend to spread in Hokkaido due to the influence of a low pressure system off the eastern seaboard.
There will be some places on the Sea of Okhotsk side where it will rain.

The predicted maximum temperature in Sapporo is 8c, so it looks like the cold will return.

Also, the weather in Chugoku, Shikoku and Kyushu is going downhill towards night as a front and low pressure system approach.

On the 21st (Sunday), the area of rain will expand to eastern Japan, and
the heat from the previous day seems to be calming down.

Although it will recover in many places by the end of the week on the 22nd (Monday), rain will again spread from the west from the 23rd (Tuesday).

As the low pressure system continues to develop and pass near Honshu, there is a risk of strong rain and winds over a wide area.

In the future, the rain and wind forecast area may change depending on changes in forecasts of the trend and development process of low pressure systems.
Please continue to check the latest weather information.

Rain falls across a wide area from western to eastern Japan on the weekend. Due to the earthquake, Shikoku needs to be careful of landslides.

2024/04/18 18:15


Tomorrow will be covered in high pressure, and many areas of the country are expected to be sunny. However, tomorrow, as a low-pressure system moves eastward from the East China Sea, the weather will turn downhill from the west, and rain is likely to spread from northern Kyushu into the evening and late at night.


Yesterday night Following an earthquake with a maximum seismic intensity of less than 6 that occurred in the Bungo Channel in late 2019, there were places where the ground was loose, such as Ainan Town in Ehime Prefecture, Sukumo City in Kochi Prefecture, and Uwajima City in Ehime Prefecture, where the shaking was particularly strong, and disasters are normally occurring. Please be careful as even a small amount of rain can cause landslides. If signs of a landslide are confirmed, evacuate immediately.



Then, the low pressure system moved east across the Sea of Japan. The weather is expected to move forward, and from western Japan to the Pacific side of eastern Japan, the front is expected to bring heavy rain, and the rain is expected to intensify.


Going out on the weekend In such cases, it is a good idea to have a large umbrella or raincoat ready.

The longest Kuroshio meander in recorded history, sea surface temperature up to 6c higher off the coast of Sanriku (April 7-13, 2024 Ocean Summary)

2024/04/18 13:09


The Kuroshio Great Meander, which began in August 2017, lasted 6 years and 9 months, making it the longest in recorded history.

Sea surface temperatures off the coast of Sanriku continue to be at record high temperatures, reaching a maximum of 6c higher than normal.


Summary of the ocean from April 7th to 13th, 2024

#Pressure distribution and waves
On the 7th, the isobars were crowded between the continental low pressure and the high pressure east of Japan, and the wave height was high off the coast of Sanriku. Around 2m.

On the 8th, a front was stationary south of Japan, but
waves remained low and calm in the waters surrounding Japan.

On the 9th, a low pressure front developed and moved northeast.
The sea of Japan and the Pacific Ocean have wide wave heights of over 3m. At night, we sailed off the coast of Sanriku.

From the 10th to the 11th, the area around Honshu was covered by a mobile high pressure system.
On the 10th, there were heavy waves in the eastern Kanto region and near the Izu Islands, but the high waves subsided on the 11th.

On the 12th, a low pressure system moved northeast near the Izu Islands.
Wave height is 3m around the low pressure area.

On the 13th, a low pressure system, accompanied by a front, moved northeast east of Japan.
Wave height around 2m near the Izu Islands.


#Sea surface temperature
Towards the end of this period, areas with higher than normal sea conditions expanded in the Japanese waters.
In the East China Sea and the vicinity of the Nansei Islands,
water areas that were slightly higher than normal were widespread.

On the Pacific side, the large Kuroshio meander continued, and the sea area continued to be slightly lower than normal,
mainly off the coast of Shionomisaki, where the Kuroshio leaves the shore.
Off the coast of Sanriku, where the Kuroshio Current moves northward, the sea area remained significantly higher than normal, with temperatures up to 6 degrees Celsius higher than normal.

Off the southeastern coast of Hokkaido, where the Oyashio Current is receding,
waters remain significantly higher than normal.
In the Sea of Okhotsk and the waters around the Kuril Islands, areas with slightly higher than normal temperatures were widespread.

[Observation of yellow dust in Tokyo and Osaka] Visibility is less than 10km, some places will see yellow dust flying until tomorrow

2024/04/18 11:30


Today, we are observing yellow sand over a wide area in the Kanto and Kinki regions.

As of 10 a.m. today (Thursday), the visibility (preliminary values) of the main meteorological observatories and meteorological offices observing yellow dust is as follows.

Kinki region
Kobe 8 km
Kyoto 8 km
Nara 9 km
Wakayama 9 km

Kanto region
Utsunomiya 9 km
Mito 9 km

*Visibility is the horizontal line-of-sight distance.


West tonight - Yellow dust is flying over a wide area of northern Japan, and visibility is expected to remain poor.


See you tomorrow There are some places where yellow dust is flying, and some places are affected by yellow dust for a relatively long period of time.

If you are outdoors, there is a risk of yellow dust adhering to your clothes, so if you are allergic to
, it is recommended that you refrain from hanging your laundry outside to dry until tomorrow.

Also, if the visibility is less than 5 kilometers, there is a risk of traffic interference with
aircraft, so
must be extremely careful.

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