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
05:46
Sunrise
17:56
Sunset
Moon
Waxing Crescent
10:41
Moonrise
20:37
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Sayama.
Resources
UV Index
Humidity
Weather in Sayama tomorrow, September 17, 2026
Sayama starts September 17, 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 34% near 00:00. Skies look heaviest around 00:00, with cover close to 65%.
The day peaks near 27°C and cools toward 20°C. Expect humidity between 67% and 97%, most humid near 00:00. Winds stay light, near 2.8 km/h by 12:00, so the day feels still more than breezy.
Expect the wet theme to continue later, as rain odds reach 40% near 16:00. Cloud amounts hold near 50% around 15:00. Views remain open at about 16.1 km. Expect sunrise at 05:47, sunset at 17:55, and 12 hours 7 minutes of sunlight today overall.
Overall, Sayama on September 17, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 40% and the high sits around 27°C.
Frequently asked questions about weather in Sayama
How warm does it get in Sayama?
The warmest month in Sayama is August, with average high temperatures of 34°C. The average temperature during this period is around 30°C.
How cold does it get in Sayama?
The coldest month in Sayama is January, with average low temperatures of 2°C. The average temperature during this period is around 6°C.
What is the wettest time of year in Sayama?
The wettest month in Sayama is June, with an average of 233mm of precipitation.
What is the driest time of year in Sayama?
The driest month in Sayama is December, with an average of 53mm of precipitation.
Explore more weather forecasts
- Tondabayashichō, Ōsaka-fu
- Tokyo, Tokyo Prefecture
- Habikino, Ōsaka-fu
- Yokohama, Kanagawa
- Matsubara, Ōsaka-fu
- Osaka, Ōsaka-fu
- Fujiidera, Ōsaka-fu
- Nagoya, Aichi-ken
- Taishi, Ōsaka-fu
- Sapporo, Hokkaido
- Kanō, Ōsaka-fu
- Fukuoka, Fukuoka Prefecture
- Kawachi-Nagano, Ōsaka-fu
- Kawasaki, Kanagawa
- Kashihara, Ōsaka-fu
- Kobe, Hyōgo
