Weather for Today, Wednesday the 14th: Rain Across a Wide Area from Northern to Western Japan; Beware of Lightning and Strong Winds.

2026/10/14 07:26

Today, Wednesday the 14th, a low-pressure system will move northeast across the Sea of Japan, and a front will pass through northern and western Japan, bringing rain to a wide area.
As the front passes, there will be localized heavy downpours accompanied by thunder. Winds will also strengthen around the low-pressure system and front, creating a risk of driving rain.
If you are heading out, please carry a large umbrella and take precautions against lightning strikes and strong winds.



In the Hokkaido region, the center of the low-pressure system is expected to pass over the northern Sea of Japan, bringing rain to a wide area. The rain will gradually shift from west to east. However, on the Sea of Japan side, rain may persist into the night due to the influence of cold air.
Additionally, even after the low-pressure system moves away, a steep pressure gradient will cause very strong winds and high waves at sea; please exercise caution.

From the Tohoku region through eastern Japan, rainfall will intensify locally as a cold front passes, with heavy rain expected, particularly on the Sea of Japan side. Please be alert for lightning strikes and violent gusts, such as tornadoes.

In western Japan, the weather is tending to improve. Rain currently falling in some areas will gradually stop, and sunny spells are expected in the afternoon. Please be careful not to leave your umbrella behind.



As for high temperatures, cold air will flow in following the passage of the cold front, so maximum temperatures across the country will likely be lower than yesterday in many areas. Temperatures are expected to drop by as much as 6C compared to yesterday, particularly in areas along the Sea of Japan such as Akita, Yamagata, and Niigata. With highs just slightly above 20C, you will likely need long sleeves. It is also expected to get chilly at night, so please bring a warm outer layer if you plan to be out late.
On the other hand, maximum temperatures on the Pacific side will not drop as significantly; many areas across eastern and western Japan will see highs of 25C or higher?classified as a "summer day." Please dress in layers so you can adjust your clothing as needed.

Hokkaido should be on alert for strong winds and high waves from tomorrow, the 14th, through the 15th.

2026/10/13 21:18

A low-pressure system accompanied by a front is moving northeast across the Sea of Japan. This system is expected to intensify rapidly as it passes over the northern Sea of Japan tomorrow, Wednesday the 14th, and moves into the Sea of ??Okhotsk by the day after, Thursday the 15th.
Due to this intensifying low-pressure system, the pressure gradient near Hokkaido will steepen, likely resulting in very strong winds. Rough seas and high waves are also expected.
There is a possibility of warning-level gale-force winds and high waves, particularly along the Sea of Japan coast. Please be sure to check the latest information.



In the Hokkaido region, rain is forecast across a wide area tomorrow, Wednesday the 14th, as the front passes through. Winds will strengthen, and there is a risk of driving rain. Please exercise caution if you are going out.
High waves are also expected, especially along the Sea of Japan coast; please avoid approaching the shoreline as much as possible.
Forecasts for wind and waves are as follows:

[Wind Forecast Hokkaido]
Forecast maximum wind speeds (peak instantaneous wind speeds) for the 14th:
Northern Sea of Japan coast (land): 20 m/s (35 m/s)
Northern Sea of Japan coast (sea): 20 m/s (30 m/s)
Southern Sea of Japan coast (land): 18 m/s (30 m/s)
Southern Sea of Japan coast (sea): 20 m/s (30 m/s)
Forecast maximum wind speeds (peak instantaneous wind speeds) for the 15th:
Northern Sea of Japan coast (land): 20 m/s (35 m/s)
Northern Sea of Japan coast (sea): 20 m/s (30 m/s)
Southern Sea of Japan coast (land): 18 m/s (30 m/s)
Southern Sea of Japan coast (sea): 18 m/s (30 m/s)

[Wave Forecast Hokkaido]
Forecast wave heights for the 14th:
Northern Sea of Japan coast: 4 m
Southern Sea of Japan coast: 4 m
Forecast wave heights for the 15th:
Northern Sea of Japan coast: 5 m
Southern Sea of Japan coast: 5 m



[Disaster Prevention Information]

As a low-pressure system accompanied by a front passes through the Hokkaido region while rapidly intensifying, southerly winds will strengthen quickly to become very strong by the morning of tomorrow, the 14th (Wednesday). By nightfall, the wind will shift to a westerly direction and remain very strong through the day after tomorrow, the 15th (Thursday). Rough seas are expected.
In the northern part of the Sea of Japan side, please be on alert for violent winds from the morning of the 14th (Wednesday) through the 15th (Thursday).
Across the Sea of Japan side, please exercise caution regarding strong winds from the morning of the 14th (Wednesday) through the 15th (Thursday), and pay close attention to high waves on the 15th (Thursday).
Depending on the path and intensity of the low-pressure system, there is a risk that areas and timeframes affected by violent winds could expand, and seas could become very rough.
Additionally, in the southern part of the Sea of Japan side and the western part of the Pacific Ocean side, there is a risk of severe gusts (such as tornadoes), lightning strikes, hail, and sudden heavy rain from the early hours until late morning on the 14th (Wednesday). Please exercise caution during outdoor activities and when managing crops. If there are signs of approaching developed cumulonimbus clouds, please take steps to ensure your safety, such as moving into a sturdy building.

Weather forecast for tomorrow, Wednesday the 14th, and the day after, Thursday the 15th: Rain expected across a wide area tomorrow.

2026/10/13 19:06

As of 3:00 PM today, Tuesday the 13th, a low-pressure system accompanied by a front is located over the Sea of ??Japan and is moving northeast. Rain clouds associated with the front can be seen spreading across the Sea of ??Japan.





This low-pressure system is expected to intensify as it moves northeast. Rain is likely tonight in the Kyushu, Shikoku, and Chugoku regions as the front passes through. Warm, moist air flowing toward the front will destabilize the atmosphere, so caution regarding lightning strikes is advised through tomorrow morning.

The low-pressure system is forecast to reach the vicinity of Sakhalin by midday tomorrow, Wednesday the 14th. Consequently, cloudy skies and rain will spread across a wide area from western to northern Japan tomorrow, with some locations experiencing heavy rain accompanied by thunder. Afterward, the weather will begin to clear from the west, with rain expected to stop in western Japan by the afternoon. While skies will clear late at night along the Pacific coast from Kanto to Tohoku, unsettled weather is likely to persist into the night along the Sea of ??Japan coasts of Hokuriku and Tohoku. As the low-pressure system intensifies, winds will strengthen along the Sea of ??Japan coast of northern Japan; particular caution regarding gale-force winds is required in the Soya region.




A low-pressure system that has moved near Sakhalin is forecast to intensify while remaining relatively stationary. Consequently, residents of Hokkaido should remain alert for strong winds and high waves on Thursday the 15th. Additionally, a mass of cold air is expected to flow into the upper atmosphere over Hokkaido.
As atmospheric conditions will remain unstable following the passage of a front, there will likely be localized, intermittent rainfall.

Tomorrow, Tuesday the 14th, a cold front will pass over Honshu; rainfall will intensify, peaking in the morning. Caution is also advised regarding strong winds and high waves along the Sea of ​​Japan coast.

2026/10/13 15:40

Tomorrow, Tuesday the 14th, a cold front extending from a low-pressure system moving across the Sea of ??Japan will pass over Honshu. Rain is expected to spread across a wide area, particularly affecting regions along the Sea of ??Japan coast.




In regions along the Sea of ??Japan coast, rainfall is likely to peak between tomorrow morning and midday. From the Sea of ??Japan side of Northern Japan through the Hokuriku region, the rain will intensify as the cold front passes, with the potential for localized heavy downpours accompanied by thunder.
Rain is also expected to spread to regions along the Pacific coast, including Tohoku, Kanto, and Tokai.

Please exercise caution regarding potential hazards such as sudden rainfall causing flooded roads or inundation in low-lying areas. Also, be alert for lightning strikes and violent gusts of wind, including tornadoes.
As the period of heaviest rainfall may coincide with tomorrow's morning commute to work or school, please stay updated on the latest traffic information.



In the afternoon, the cold front is expected to move east of Japan, and the rain should stop in many areas. However, along the Sea of ??Japan coast?specifically in southern Tohoku and Hokuriku?localized rain clouds may linger, leading to intermittent rain in some places throughout the afternoon.

Additionally, the spacing between isobars is narrowing over the area near Honshu; consequently, winds from the north to west are expected to strengthen, particularly along the coast facing the Sea of ??Japan. Along the Pacific coast, winds from the south are also likely to pick up. Please be cautious of strong winds and high waves in coastal areas.

Weather for today, Tuesday the 13th: Conditions expected to gradually deteriorate in Western Japan; a pleasant day ahead for Eastern Japan.

2026/10/13 07:14

Today, Tuesday the 13th, a low-pressure system over the East China Sea will intensify as it moves eastward, causing weather conditions to gradually deteriorate across western Japan?particularly in the Kyushu, Chugoku, and Shikoku regions. A folding umbrella is essential if you are heading out. From the Kinki region northward, the influence of moist air will likely lead to cloudy skies.
Meanwhile, eastern and northern Japan will be under the gentle influence of a high-pressure system, resulting in generally sunny or cloudy weather.
Typhoon No. 29 is moving north-northeast off the east coast of Japan, maintaining strong intensity.
While it will have little direct impact on Japan, caution is advised regarding high waves accompanied by swells.





High temperatures are expected to hover around 25C, making for pleasant weather following the holiday weekend.
Looking ahead, a low-pressure system accompanied by a front is expected to move across the Sea of ??Japan, bringing rain to a wide area stretching from the Chugoku and Shikoku regions to northern Japan; heavy rain is anticipated along the Sea of ??Japan coast. Conversely, Kyushu and Okinawa will come under the influence of a high-pressure system again, and weather conditions there are expected to gradually improve.

Strong Typhoon No. 29 moving north off the east coast of Japan; high waves expected along the Kanto coast.

2026/10/13 07:06

As of 6:00 a.m., Typhoon No. 29 is located east of Japan and is moving northeast at a speed of approximately 30 km/h.

? Typhoon No. 29 ? Tuesday the 13th, 6:00 a.m.
==================
Center location: East of Japan
Intensity: Strong
Movement: Northeast, 30 km/h
Central pressure: 975 hPa
Max. sustained wind: 35 m/s (near center)
Max. instantaneous wind: 50 m/s
==================



Typhoon No. 29 is expected to continue moving northeast while gradually weakening; as it moves further away from the vicinity of Japan, it is not anticipated to have a direct impact on the Japanese archipelago.

However, swells generated by the typhoon will reach the coast, resulting in continued high waves in areas stretching from the Pacific coast of southern Tohoku down to the Izu Islands. As of 6:00 a.m., high-wave advisories have been issued for regions ranging from Fukushima Prefecture through Ibaraki and Chiba Prefectures to the Izu Islands. Since high wave conditions are expected to persist until late tonight, those engaging in marine leisure activities should remain cautious and not let their guard down, even if the weather is sunny.

Low-pressure system to form over the Sea of ​​Japan; widespread rain expected on the 14th, with a risk of heavy rain in Hokkaido.

2026/10/12 12:05

Today, Monday the 12th (a public holiday), a low-pressure system centered near Sakhalin is extending its influence toward Honshu and the waters south of Japan.
Due to a stationary low-pressure system near the East China Sea, rain is falling in the Okinawa and Amami regions, with some observations of moderately heavy rain accompanied by thunder.



The low-pressure system in the East China Sea is expected to dissipate by tomorrow, Tuesday the 13th. Meanwhile, a new low-pressure system is expected to form over the Sea of ??Japan and move northeastward, accompanied by a front.



The front extending from this low-pressure system will pass over Honshu, bringing rain to a wide area on Wednesday the 14th.
Hokkaido faces a risk of heavy rain as the main body of the low-pressure system approaches; please stay updated with the latest information.



In Kyushu, the weather is expected to gradually improve from Wednesday onwards.

Weather for Today, Monday the 12th: A Great Day for Outings as Sunshine Prevails on the Last Day of the Long Weekend; Unsettled Conditions in Okinawa

2026/10/12 07:49

Today, Monday the 12th?the final day of the three-day weekend?the center of a migratory high-pressure system will move east of Hokkaido. However, as the system continues to cover the region, sunny weather is expected to persist across Northern and Eastern Japan.




In Western Japan, cloud cover will increase as the high-pressure system gradually moves away, but no significant deterioration in the weather is expected. There will be no widespread unsettled weather, and conditions will remain favorable for outings.
Meanwhile, clouds will spread over Okinawa, bringing a likelihood of rain.
Highs are forecast to be around 28, so it may feel somewhat hot when exposed to direct sunlight.

Northern and Eastern Japan, situated closer to the high-pressure system, will enjoy calm, sunny weather with little chance of rain.
Although the air may feel cool in the morning, the daytime will bring dry, pleasant conditions. Central Tokyo is expected to reach 27a "summer day" by Japanese standards?so please be mindful of the temperature difference throughout the day.
Today is "Sports Day"; if you engage in physical activity, please take precautions against heatstroke.



Please note that rough seas will persist along the Pacific coast from the Kanto region to the southern Tohoku region; if you are heading out for marine leisure activities, please be cautious of potential marine accidents.

Typhoon No. 29: Moving away to the east of Japan, but caution is advised regarding high waves and swells along the Pacific coast from the Kanto region to the southern Tohoku region.

2026/10/11 19:51

Typhoon No. 28 weakened into a tropical depression at 3:00 PM today, Sunday the 11th. Meanwhile, Typhoon No. 29 is moving northward in the waters near the Ogasawara Islands. Although both the tropical depression and the typhoon are tracking well away from Honshu, swells are expected to reach coastal areas along the Pacific, leading to higher waves in some places. Those planning marine leisure activities should exercise caution through tomorrow, Monday the 12th?the final day of the three-day weekend.

Typhoon No. 29 is currently located near the Ogasawara Islands, maintaining "very strong" intensity and moving north-northwest at 15 km/h. It is expected to continue moving northward over the waters east of Japan without approaching Honshu.

Typhoon No. 29 (Koguma) ? Saturday the 11th, 6:00 PM

Intensity: Very strong
Center Location: Near the Ogasawara Islands
Movement: North-northwest at 15 km/h
Central Pressure: 950 hPa
Max. Wind Speed: 45 m/s (near center)
Max. Gust Speed: 65 m/s


Although the tropical depression and the typhoon are moving far from Honshu, swells are reaching Pacific coastal areas stretching from Hokkaido to Okinawa, causing higher waves in some locations.

Tomorrow, Monday the 12th, Typhoon No. 29 is expected to move in a northerly direction near the Ogasawara Islands while maintaining its "very strong"intensity. It is expected to move east of Japan on the 13th (Tuesday) and transform into an extratropical cyclone far to the east of the country by the 14th (Wednesday).


Even if the tropical depression?formerly Typhoon No. 28?weakens, Typhoon No. 29 is moving northward toward a similar area, so rough seas are likely to persist along the Pacific coast. Please remain cautious of high waves along the Pacific coast from the southern Tohoku region through the Kanto region through tomorrow, the 12th (Monday).


Furthermore, even if wave heights do not appear extreme, waves accompanied by swells can pack unexpectedly powerful force upon impact due to their long wavelengths. Please be alert for swells generated by the typhoons along other parts of the Pacific coast as well.

Honshu is enjoying clear autumn skies and balmy, sweat-inducing weather, but conditions will turn chilly in the latter half of next week.

2026/10/11 12:50

Today, Sunday the 11th, a high-pressure system is covering much of Honshu, bringing sunny skies to many areas.
Temperatures are rising in regions where the sun is shining, creating warm, muggy conditions across a wide area of ??Honshu.




Meanwhile, a low-pressure system over the East China Sea is moving slowly toward the northwest.
Atmospheric conditions have become unstable over the Nansei Islands, where rain accompanied by thunder is currently being observed.




The low-pressure system over the East China Sea is expected to gradually dissipate starting tomorrow, Monday the 12th (a public holiday).
However, a new low-pressure system is expected to form over the Sea of ??Japan on Tuesday the 13th and move northward, accompanied by a front.
As cold air moves in aloft following the passage of this low-pressure system,
temperatures during the latter half of next week will likely drop to levels requiring long-sleeved clothing.





The season is expected to advance another step forward.
Please take care to avoid falling ill due to these sudden changes in temperature.