See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
21°
Rain and Humid
Feels Like: 21°
Min: 21°
Max: 24°
The next few hours will be rain and humid, with today reaching 24°C and dropping to 23°C. The coming days will be light rain throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:33
Sunrise
17:32
Sunset
Moon
Waxing Gibbous
14:46
Moonrise
00:31
Moonset
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View stargazing scoreWeather in Ōmiya today, September 21, 2026
Ōmiya 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 100% by 04:00. The thickest cloud arrives around 04:00, reaching about 100%.
The day peaks near 24°C and cools toward 21°C. The air stays humid, with relative humidity between 91% and 98% and the peak around 04:00. A lighter breeze peaks around 23:00 near 5.8 km/h.
Afternoon showers stay in play, peaking near 100% around 12:00. Skies remain cluttered, with cover about 100% by 12:00. Horizontal visibility sits around 3.9 km, briefly nearer 1.6 km. Expect sunrise at 05:33, sunset at 17:32, and 11 hours 58 minutes of sunlight today overall.
In short, treat September 21, 2026 in Ōmiya as a damp day: pack covers, watch the wetter hours, and expect a high near 24°C.
Frequently asked questions about weather in Ōmiya
How warm does it get in Ōmiya?
The warmest month in Ōmiya 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 Ōmiya?
The coldest month in Ōmiya is January, with average low temperatures of -3°C. The average temperature during this period is around 1°C.
What is the wettest time of year in Ōmiya?
The wettest month in Ōmiya is July, with an average of 326mm of precipitation.
What is the driest time of year in Ōmiya?
The driest month in Ōmiya is December, with an average of 51mm of precipitation.
