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Hourly Forecast
Daylight Hours
05:48
Sunrise
17:47
Sunset
Moon
Waxing Gibbous
14:56
Moonrise
00:51
Moonset
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View stargazing scoreWeather in Ōmihachiman today, September 21, 2026
Ōmihachiman 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 50% by 04:00. The thickest cloud arrives around 00:00, reaching about 100%.
Expect highs of 25°C and cooler readings close to 22°C. The air stays humid, with relative humidity between 81% and 92% and the peak around 19:00. A lighter breeze peaks around 15:00 near 11.1 km/h.
Through the afternoon wet weather remains a factor, with rain chances near 94% around 13:00. Cloud also stays substantial, close to 100% near 12:00. Visibility stays generally good near 14.4 km on average, though it can drop toward 11.0 km in thicker cloud or showers. Expect sunrise at 05:48, sunset at 17:47, and 11 hours 58 minutes of sunlight today overall.
Taken together, Ōmihachiman looks wet enough on September 21, 2026 that flexible outdoor plans work best, with temperatures peaking near 25°C.
Frequently asked questions about weather in Ōmihachiman
How warm does it get in Ōmihachiman?
The warmest month in Ōmihachiman is August, with average high temperatures of 32°C. The average temperature during this period is around 28°C.
How cold does it get in Ōmihachiman?
The coldest month in Ōmihachiman is January, with average low temperatures of 1°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Ōmihachiman?
The wettest month in Ōmihachiman is July, with an average of 226mm of precipitation.
What is the driest time of year in Ōmihachiman?
The driest month in Ōmihachiman is November, with an average of 66mm of precipitation.
