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
05:33
Sunrise
17:31
Sunset
Moon
Waxing Gibbous
14:56
Moonrise
00:21
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 Tennō.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Tennō.
View stargazing scoreWeather in Tennō today, September 21, 2026
Tennō 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 60% near 10:00. Skies look heaviest around 04:00, with cover close to 100%.
Temperatures climb from an overnight low near 20°C toward a daytime high of about 22°C. Expect humidity between 87% and 95%, most humid near 06:00. A lighter breeze peaks around 18:00 near 5.9 km/h.
The second half of the day still looks unsettled, with rain probability around 60% by 12:00. Dense cloud near 100% at 12:00 keeps the feel grey. Expect visibility near 14.9 km, with poorer spells close to 6.4 km. The sun rises at 05:33 and sets at 17:31, for a total of 11 hours 58 minutes of sunlight today.
The practical takeaway for Tennō on September 21, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 22°C.
Frequently asked questions about weather in Tennō
How warm does it get in Tennō?
The warmest month in Tennō is August, with average high temperatures of 29°C. The average temperature during this period is around 26°C.
How cold does it get in Tennō?
The coldest month in Tennō is February, with average low temperatures of 0°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Tennō?
The wettest month in Tennō is August, with an average of 224mm of precipitation.
What is the driest time of year in Tennō?
The driest month in Tennō is March, with an average of 103mm of precipitation.