Weather for today, the 29th (Saturday): Rain in the Tohoku to Chugoku regions due to the front; intense heat in Kyushu and Shikoku

2026/08/29 06:46

Today, the 29th (Saturday), the Tohoku, Kinki, and Chugoku regions will experience rainy weather due to the influence of the autumn rain front that will be stationary near Honshu.
It is expected that there will be heavy rain in some places accompanied by thunder. The front is expected to gradually move northward, raising the risk of heavy rain again in the Hokuriku region.
In the Kyushu and Shikoku regions, there will be places where it will be sunny and extremely hot. You need to be careful about heat stroke.



There is a low pressure system in the sea near Chishima and it is moving east-northeast. The front is extending from the vicinity of the Korean Peninsula, through the Kinki and Tokai regions, and toward the east of Japan.
On the other hand, there is a high pressure system in the south of Japan, which is almost stagnant.

In Hokkaido, the low pressure around the Chishima Islands is expected to move away to the east, and the high pressure over the Sea of Okhotsk is expected to overhang. The sunlight will mainly reach the Sea of Japan side.

From Tohoku to Hokuriku, Kanto-Koshin, the Tokai region, and the Sea of Japan side of the Kinki and Chugoku regions, the weather will be prone to rain due to the influence of the autumn rain front.
Warm and humid air is expected to flow towards the front, causing unstable atmospheric conditions. There will be heavy rain in some places, accompanied by thunder.
Especially in the Hokuriku region, the ground has become loose in some places due to record heavy rain on the 27th. Please be extremely cautious of landslides.
Also, in the Tohoku and Chugoku regions, please be careful of landslides, flooding of low-lying areas, and rising river waters. Also be careful of strong wind gusts such as lightning and tornadoes.

The Shikoku and Kyushu regions are expected to be covered by a high pressure system in the south of Japan, and the weather will be sunny. However, please be careful of showers mainly along the mountains in the afternoon.



The predicted maximum temperature will be lower than yesterday in many places in northern and eastern Japan, and in Tokyo it will be 26c, which is 7c lower than yesterday, so it will feel cooler.

Western Japan is expected to experience midsummer days of over 30 degrees Celsius, with some places especially in the Shikoku and Kyushu regions expected to experience extremely hot days of over 35 degrees Celsius. Please be careful of heat stroke.

Kumamoto Prefecture, which was severely damaged by the 2020 Kumamoto Earthquake, is expected to experience temperatures of 37 degrees Celsius, which is similar to body temperature. Those involved in recovery work should take frequent breaks and remember to replenish water and an appropriate amount of salt.

From now on, around September 2nd, there will be severe lingering heat in Kanto-Koshin and Kyushu, so be careful of heat stroke.

2026/08/28 22:03

Today, the 28th (Friday), temperatures rose in areas such as Kyushu and Shikoku, where the Pacific anticyclone covered the south of the front and the sunlight reached it, making it extremely hot.
The highest temperature was 38.3c in Kousa, Kousa Town, Kamimashiki District, Kumamoto Prefecture, and 37.5c in Minamata, Minamata City, Kumamoto Prefecture, which was hotter than body temperature.

Tomorrow, the 29th (Saturday), the sun will reach Kyushu and Shikoku, making it an extremely hot day in some places.
The predicted maximum temperature is 38c in Hita, Oita Prefecture, and 37c in Kurume, Fukuoka Prefecture, and Kumamoto, Kumamoto Prefecture, which is expected to exceed body temperature.
In addition, heatstroke warning alerts have been announced in 12 prefectures in western Japan. Please take measures to prevent heat stroke, such as taking frequent breaks and hydrating.




From now on, warm, humid air is expected to flow in from Kanto-Koshin to Kyushu until around Wednesday, September 2nd, resulting in some extremely hot days with maximum temperatures of 35c or higher.
Please take care of your health, such as preventing heat stroke, and managing your crops and livestock.



Looking at the forecast for the maximum temperature for the next week, Tokyo is expected to experience an extremely hot day of 35c on Monday the 31st.
In Nagoya, the temperature is likely to exceed body temperature, reaching 38c on the 31st (Monday) and 37c on September 1st (Tuesday).
In Osaka and Fukuoka, there will be many extremely hot days with temperatures reaching 35c until around Tuesday, September 1st.

Please check the "Heatstroke Warning Alert" jointly announced by the Japan Meteorological Agency and the Ministry of the Environment, and consider refraining from outdoor activities as much as possible on the days announced in your area.

Tomorrow's front moves northwards, Hokuriku region is at risk of heavy rain again; strict vigilance against landslides

2026/08/28 17:57

A front is extending from the vicinity of the Korean Peninsula to the east of Japan, passing through the Pacific side of eastern Japan. Additionally, a low-pressure system with cold air in the sky is moving northeast off the coast of Nemuro, creating a pressure trough from northern Japan to eastern Japan.

The front will remain stationary for most of today, the 28th, but it is expected to turn northward tomorrow, the 29th (Saturday), and move northward into the Tohoku region into the 30th (Sunday).

Due to the effects of warm, humid air flowing toward this front, cold air in the upper atmosphere, and a trough in atmospheric pressure, the atmospheric conditions will be extremely unstable from eastern Japan to western Japan until the 30th (Sunday), and in northern Japan until the 30th (Sunday), resulting in heavy rain with thunderstorms and very heavy rain of over 50 mm per hour, or heavy rain of over 30 mm per hour.
In particular, the Hokuriku region, which experienced record heavy rain yesterday on the 27th, is expected to experience heavy rain again in some places as the front moves northward, from Saturday the 29th tomorrow to Sunday the 30th.

Please be extremely cautious of landslides in the Hokuriku region from the 29th (Saturday) to the 30th (Sunday), and from eastern to western Japan from the 30th (Sunday) tomorrow, and in northern Japan from the 30th (Sunday) the following day, please be careful of landslides, flooding of low-lying areas, and rising river waters. In northern and western Japan, there are places where the ground has become loose due to past heavy rains, and there is a risk that the risk of landslides will increase even with less rain than usual. Please stay away from places near cliffs.



#Expected amount of rain (in areas with a lot of it)
+Precipitation expected for 24 hours by 18:00 tomorrow 29th (Sat)
Hokuriku region 100mm
Kinki region 10 0mm
Chugoku region 120mm
+Precipitation expected for 24 hours by 18:00 on the 30th (Sunday) the next day
Hokuriku region 120mm
Tohoku region 80mm

Weather for tomorrow 29th (Saturday): Heavy rain near the front

2026/08/28 17:54

Tomorrow, the autumn rain front will remain near Honshu, causing unstable atmospheric conditions. Rain clouds tend to develop around the front, and vigilance is required for localized heavy rain and thunderstorms.



Kyushu will be less affected by the front, and there will be many sunny days. There are many places with extremely hot days of over 35 degrees Celsius, so maximum vigilance against heat stroke is required. Make sure to drink plenty of water and rest in a cool place. In other parts of western Japan, there will be plenty of clouds, but there will be periods of sunshine, and it is expected to be a hot and humid day.
Close to the front, from southern Tohoku to eastern Japan, clouds will likely spread, and it will rain in places. In Hokuriku in particular, rain clouds are likely to develop due to the influence of moist air flowing in from the Sea of Japan, and heavy rain with localized thunder is expected. Please be especially careful in areas that have already been affected by heavy rain. Rain may become heavier temporarily in the Kanto and Tokai regions. Temperatures are not expected to rise due to the rain.
The weather will improve in Hokkaido and the sun will shine. There are many places where the temperature does not reach 25 degrees Celsius even during the day, making the weather relatively pleasant and sunny.
It's expected to be a cloudy day in the northern Tohoku region, with few midsummer days expected.

Typhoon No. 23 (Banrang) occurs, making it the 10th typhoon this month

2026/08/28 16:13

Typhoon No. 23 (Banrang) occurred near Wake Island at 12 noon today, the 28th. This is the 10th outbreak this month. There were many typhoons in August this year, about twice as many as in a normal year (5.7).

#Typhoon No. 23 Friday 28th 12:00
==================
Center location Near Wake Island
Movement Northeast 20km/h
Central pressure 1002 hPa
Maximum wind speed 18 m/s (near the center)
Maximum instantaneous wind speed 25 m/s
==================



The typhoon is expected to continue moving northward across the far east of Japan. It is not expected to develop much and is expected to turn into a tropical cyclone around the 1st (Thursday), and there is no expectation that there will be any direct impact on the Japanese archipelago.

[Risk of heavy rain again in Hokuriku] Be wary of new disasters (Commentary: Weather forecaster Atsuko Miyake)

2026/08/28 13:56

Ishikawa and Toyama prefectures, which have experienced record heavy rain, are likely to experience heavy rain again this weekend.
New disasters may occur, so vigilance is required.



Precipitation in the 48 hours up to 11 a.m. today (Friday) was 479 mm in Himi City, Toyama Prefecture, 357 mm in Hodatsushimizu Town, Ishikawa Prefecture,
and 347.5 mm in Hakui City, Ishikawa Prefecture,
all of which are heavy rains that are the highest in recorded history.

At this time, the front is moving south,
active clouds cover the area from the Sea of Japan to the Chugoku and Kinki regions.
Heavy rain exceeding 30mm per hour has been observed in Shimane Prefecture.

Meanwhile, clouds associated with a low pressure system are passing through Hokkaido, so please be careful of heavy rain and lightning in the evening.



The front is expected to gradually move northward into tomorrow (Sat).
Warm, humid air flows toward the front from the south.
The frontal activity is increasing, and it looks like heavy rain will once again occur in the Hokuriku region.



Rain cloud forecast.
Today, rain clouds will gradually move northward.
Linear rain clouds are also expected to develop over the Sea of Japan.

By the time the date changes to tomorrow (Saturday),
heavy rain is expected to increase again in Ishikawa and Toyama prefectures.

From around noon tomorrow, red signs will start to appear in Toyama and Ishikawa prefectures, and there is a risk of heavy rain, or even very heavy rain in some cases.
If rain clouds form in a line, there is a risk of more rain.

In addition, the Tokai region, Kanto-Koshin region, and Tohoku region are also likely to experience heavy rain in some places.
When going out, it's safe to have rain gear.

If rain clouds develop locally and become stagnant,
there is a risk of warning-level heavy rain.



In Hokuriku, where the ground has loosened due to the heavy rain that has fallen so far, there will be even more heavy rain.
New disasters may occur.

Please stay away from flooded rivers.
In large rivers, the water level may rise even after the rain has stopped, so please stay away from rivers even after the rain has stopped.
Please do not go to see the rice fields.

Also, cliffs that contain large amounts of rainwater may collapse, so
try to stay away from cliffs and slopes.

It looks like there will be some places where the rain peaks during the dark hours of the night.
It is actually dangerous to evacuate after dark.
Please move to a safe place now while it's daylight.



The front is expected to move further north the day after tomorrow (Sunday).
The reason this front is moving north is because the Pacific anticyclone to the south is becoming stronger.
As this Pacific high pressure system strengthens, the heat will return.



Let's take a look at the forecast for the coming week, focusing on the maximum temperature.

Fukuoka is expected to continue experiencing extremely hot days with temperatures exceeding 35c.
In Osaka, extremely hot days of over 35c are expected on the 31st and September 1st.
In Nagoya, it has been extremely hot days since the 30th, especially on Monday the 31st, when the temperature reached 38 degrees Celsius, making it unbearably hot.
Please be careful about heat stroke.
Even in the Kanto region, the last day of August, the 31st (Monday), is expected to be extremely hot with temperatures reaching 35 degrees Celsius.
Please be careful not to get sick.



Detailed weather information for each location.
Unstable atmospheric conditions will continue throughout the country into tomorrow (Saturday).
Please be careful of sudden changes in the weather even in sunny areas.

And in Kyushu, it continues to be extremely hot, exceeding 35 degrees Celsius.
If you live in an area affected by the Kumamoto Earthquake, please be careful not to get heatstroke while working on the recovery work.



Weekly forecast.
The heat will return to western and eastern Japan next week.
In Western Japan, there are many extremely hot days even into September.
Please continue to be careful of heat stroke.

It will continue to rain in northern Japan and Hokuriku into next week.
Please be careful about the rain and heavy rain here.

There is a risk of heavy rain in Hokkaido on September 2nd (Wednesday) due to the damp air.

Weather for 28th (Friday): Linear precipitation band possible in 4 Tokai prefectures, Hokkaido, and Hokuriku; warning of heavy rain over wide area

2026/08/28 06:54

Today, the 28th, a low pressure system is moving northeast near Hokkaido.
A front extending from a low-pressure system in the east of Japan is extending east-west from the east of Japan, passing through the Tokai and Kinki regions.
A linear precipitation band formed early this morning in the Kushiro region of Hokkaido near the low pressure system, and heavy rain was observed.
As active rain clouds are expected to continue in the morning,
Please continue to ensure your safety.



The warm, humid air of Typhoon No. 18 moving westward in the East China Sea is flowing into the front, making the atmospheric condition extremely unstable near the front.



Currently, rain clouds from the
front are covering the area from Kanto-Koshin to the Tokai, Kinki and Chugoku regions.
The Japan Meteorological Agency is warning of the possibility of a linear rain band forming in the Tokai region until noon today. Please pay attention to the latest information regarding heavy rain.




The weather is expected to gradually improve in northern Japan, and there will be some places where the sun will shine in the afternoon.
The rain in eastern and western Japan is expected to gradually stop in the afternoon.



The ground is loose in some places due to the rain since the day before yesterday.
Even after the rain has subsided, it is still necessary to be wary of landslides and debris flows.
Please refer to the Japan Meteorological Agency website "Kikikuru" and check the evacuation actions that are required at this time.

Typhoon No. 22 (Atau) occurs, heading north near Wake Island

2026/08/28 00:12

At 3:00 p.m. on the 27th, a
tropical cyclone became typhoon No. 22 near Wake Island, far southeast of Japan.
Typhoon No. 22 is moving north at a speed of about 15 kilometers per hour.

Typhoon No. 22 (as of 21:00 on the 27th)
Central pressure: 998hPa
Maximum wind speed near the center: 18m/s
Maximum instantaneous wind speed: 25m/s
Travel direction: north-northwest
Travel speed: 15km/h

It is expected to advance northward as it intensifies through the night of the 28th, then weaken slightly on the 29th and change course to the north-northwest. It will change its course to the north-northeast on the
31st and become a tropical depression on the night of
September 1st.



The impact on Japan is expected to be small at this stage, but
please be careful about the future course.

Heavy rain over a wide area into the 28th (Friday); linear precipitation band possible in the Tokai region

2026/08/27 18:56

The front is extending from the Sea of Japan to the east of Japan, passing through northern and eastern Japan, and will gradually move south until tomorrow the 28th, reaching from the Sea of Japan coast of western Japan to the Pacific coast of eastern Japan.
In addition, through the 28th, a low-pressure system with cold air in the sky is expected to move from the Sea of Japan to the Sea of Okhotsk, and a trough of pressure is expected to pass from northern Japan to eastern Japan.



The warm, humid air flowing towards the front, the cold air in the upper atmosphere, and the trough in the atmospheric pressure will make the atmospheric condition extremely unstable until the 28th,
very heavy rain accompanied by thunder and heavy rain will occur over a wide area from northern Japan to western Japan, leading to heavy rain in some places.

[Rain Forecast]
Expected 24-hour precipitation from 6:00 p.m. on the 27th to 6:00 p.m. on the 28th is high in some places,
Hokkaido region 120mm
Tohoku region 120mm
Kanto-Koshin region 150mm
Hokuriku region 180mm
Tokai region 180mm Re
Kinki region 150mm
Chugoku region 100mm

Then, expected from 18:00 on the 28th to 18:00 on the 29th The 24-hour rainfall is high in some places, and if a linear precipitation band of 80mm
occurs in the Hokuriku region, there is a risk that the rainfall will increase locally.

Furthermore, the Japan Meteorological Agency is calling for caution in the Tokai region, where linear precipitation bands are forming and the risk of heavy rain disasters may rapidly increase.

[Forecast of meteorological phenomena]
The following are the regions and periods where linear precipitation bands may occur and the risk of heavy rain disasters may rapidly increase.



(Tokai region) Shizuoka Prefecture From dawn to noon on the 28th
(Tokai region) Aichi Prefecture From dawn to noon on the 28th
(Tokai region) Gifu Prefecture From dawn to noon on the 28th Kete
(Tokai Region) Mie Prefecture From dawn to noon on the 28th

Please further increase your preparedness for heavy rain and pay attention to disaster prevention weather information and information such as Kikikuru, which will be announced in stages.

Weather for tomorrow, the 28th (Friday): The area of rain will expand to the west

2026/08/27 18:15

Rain is expected over a wide area from Hokkaido to Chugoku and Shikoku due to the southward movement of the autumn rain front and the effects of low pressure. There is a risk of localized heavy rain, so vigilance is required in various areas.



Due to the influence of the autumn rain front, it will be easy to rain over a wide area from Kanto to Chugoku and Shikoku. Rain clouds are expected to develop, especially in the Hokuriku region, northern Kinki region, and the Sanin area near the front, and locally heavy rain is expected. There is also a possibility of heavy rain in the Tokai and Kanto regions.
Also, as a low pressure system accompanied by cold air passes through Hokkaido, there is a risk of heavy rain in various places from dawn to early morning.
The weather in Tohoku will gradually improve, and there will be times when the sun will reach us. Kyushu is less affected by the front and receives plenty of sunlight, but the lingering heat is expected to reach over 35 degrees Celsius, so please be careful of heatstroke.

Tomorrow is a full moon. A beautiful full moon is likely to be seen in the Tohoku Pacific side, Kyushu, and Okinawa. Let's look forward to other regions next month.

Finally, tomorrow the 28th is Weather Forecaster's Day. The name comes from the fact that the first national weather forecaster exam was held on this day in 1994. As weather forecasters, we work hard every day to improve our accuracy. I hope it will be of some use in your life...