See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:37
Sunrise
17:36
Sunset
Moon
Waxing Gibbous
14:48
Moonrise
00:37
Moonset
Daily Forecast
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Tomioka.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Tomioka.
View stargazing scoreWeather in Tomioka today, September 21, 2026
Tomioka 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. Wetter spells lean into the morning, when rain odds reach about 100% near 04:00. Skies look heaviest around 01:00, with cover close to 100%.
The temperature range runs from about 20°C up to 24°C. Moisture in the air spans 89%-97%, with the highest values around 12:00. A lighter breeze peaks around 23:00 near 4.6 km/h.
Expect the wet theme to continue later, as rain odds reach 100% near 12:00. Cloud amounts hold near 100% around 12:00. Expect visibility near 7.3 km, with poorer spells close to 0.6 km. Expect sunrise at 05:37, sunset at 17:36, and 11 hours 58 minutes of sunlight today overall.
The practical takeaway for Tomioka on September 21, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 24°C.
Frequently asked questions about weather in Tomioka
How warm does it get in Tomioka?
The warmest month in Tomioka is August, with average high temperatures of 30°C. The average temperature during this period is around 26°C.
How cold does it get in Tomioka?
The coldest month in Tomioka is January, with average low temperatures of 0°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Tomioka?
The wettest month in Tomioka is July, with an average of 277mm of precipitation.
What is the driest time of year in Tomioka?
The driest month in Tomioka is December, with an average of 43mm of precipitation.
Explore more weather forecasts
- Obata, Gunma-ken
- Tokyo, Tokyo Prefecture
- Yoshii, Gunma-ken
- Yokohama, Kanagawa
- Annaka, Gunma-ken
- Osaka, Ōsaka-fu
- Takasaki, Gunma-ken
- Nagoya, Aichi-ken
- Fujioka, Gunma-ken
- Sapporo, Hokkaido
- Kanekomachi, Gunma-ken
- Fukuoka, Fukuoka Prefecture
- Hirobaba, Gunma-ken
- Kawasaki, Kanagawa
- Tamamura, Gunma-ken
- Kobe, Hyōgo
