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Hourly Forecast
Daylight Hours
05:28
Sunrise
17:26
Sunset
Moon
Waxing Gibbous
14:48
Moonrise
00:18
Moonset
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View stargazing scoreWeather in Ōshū today, September 21, 2026
Ōshū starts September 21, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Early hours look the most unsettled, with rain probability near 96% by 10:00. The thickest cloud arrives around 06:00, reaching about 100%.
The day peaks near 24°C and cools toward 20°C. Relative humidity sits between 92% and 100%, reaching its peak around 21:00. Winds stay light, near 1.8 km/h by 23:00, so the day feels still more than breezy.
Expect the wet theme to continue later, as rain odds reach 98% near 16:00. Cloud amounts hold near 100% around 12:00. Horizontal visibility sits around 7.1 km, briefly nearer 0.5 km. Sunrise is at 05:28 and sunset at 17:26, giving 11 hours 58 minutes of sunlight today.
In short, treat September 21, 2026 in Ōshū as a damp day: pack covers, watch the wetter hours, and expect a high near 24°C.
Frequently asked questions about weather in Ōshū
How warm does it get in Ōshū?
The warmest month in Ōshū is August, with average high temperatures of 28°C. The average temperature during this period is around 24°C.
How cold does it get in Ōshū?
The coldest month in Ōshū is January, with average low temperatures of -4°C. The average temperature during this period is around -1°C.
What is the wettest time of year in Ōshū?
The wettest month in Ōshū is August, with an average of 173mm of precipitation.
What is the driest time of year in Ōshū?
The driest month in Ōshū is February, with an average of 61mm of precipitation.
