See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
18°
Light Rain
Feels Like: 18°
Min: 18°
Max: 21°
The next few hours will be foggy, with tomorrow reaching 25°C and dropping to 17°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:33
Sunrise
17:44
Sunset
Moon
Waxing Crescent
10:35
Moonrise
20:15
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 Minamiuonuma.
Resources
UV Index
Humidity
Weather in Minamiuonuma tomorrow, September 17, 2026
Minamiuonuma looks damp on September 17, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Wetter spells lean into the morning, when rain odds reach about 100% near 00:00. Skies look heaviest around 00:00, with cover close to 99%.
Temperatures climb from an overnight low near 18°C toward a daytime high of about 25°C. The air stays humid, with relative humidity between 71% and 97% and the peak around 00:00. Airflow remains manageable, reaching about 2.0 km/h around 12:00.
Expect the wet theme to continue later, as rain odds reach 26% near 13:00. Cloud amounts hold near 74% around 12:00. Horizontal visibility sits around 12.8 km, briefly nearer 8.4 km. The sun rises at 05:34 and sets at 17:42, for a total of 12 hours 8 minutes of sunlight today.
The practical takeaway for Minamiuonuma on September 17, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 25°C.
Frequently asked questions about weather in Minamiuonuma
How warm does it get in Minamiuonuma?
The warmest month in Minamiuonuma 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 Minamiuonuma?
The coldest month in Minamiuonuma is January, with average low temperatures of -6°C. The average temperature during this period is around -3°C.
What is the wettest time of year in Minamiuonuma?
The wettest month in Minamiuonuma is July, with an average of 302mm of precipitation.
What is the driest time of year in Minamiuonuma?
The driest month in Minamiuonuma is April, with an average of 159mm of precipitation.
Explore more weather forecasts
- Muikamachi, Niigata-ken
- Tokyo, Tokyo Prefecture
- Shiozawa, Niigata-ken
- Yokohama, Kanagawa
- Tōkamachi, Niigata-ken
- Osaka, Ōsaka-fu
- Uonuma, Niigata-ken
- Nagoya, Aichi-ken
- Ojiya, Niigata-ken
- Sapporo, Hokkaido
- Nagaoka, Niigata-ken
- Fukuoka, Fukuoka Prefecture
- Kashiwazaki, Niigata-ken
- Kawasaki, Kanagawa
- Tochio-honchō, Niigata-ken
- Kobe, Hyōgo
