See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
20°
Overcast
Feels Like: 19°
Min: 19°
Max: 23°
The next few hours will be overcast, with today reaching 23°C and dropping to 16°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
05:28
Sunrise
17:27
Sunset
Moon
Waxing Gibbous
14:51
Moonrise
00:16
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 Hachimantai.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Hachimantai.
View stargazing scoreWeather in Hachimantai today, September 21, 2026
Hachimantai looks damp on September 21, 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 64% near 10:00. Skies look heaviest around 06:00, with cover close to 100%.
The day peaks near 23°C and cools toward 19°C. Expect humidity between 90% and 99%, most humid near 18:00. Winds stay light, near 3.4 km/h by 23:00, so the day feels still more than breezy.
The second half of the day still looks unsettled, with rain probability around 90% by 13:00. Dense cloud near 100% at 12:00 keeps the feel grey. Visibility stays generally good near 6.0 km on average, though it can drop toward 0.1 km in thicker cloud or showers. Expect sunrise at 05:28, sunset at 17:27, and 11 hours 58 minutes of sunlight today overall.
The practical takeaway for Hachimantai on September 21, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 23°C.
Frequently asked questions about weather in Hachimantai
How warm does it get in Hachimantai?
The warmest month in Hachimantai is August, with average high temperatures of 26°C. The average temperature during this period is around 23°C.
How cold does it get in Hachimantai?
The coldest month in Hachimantai is January, with average low temperatures of -7°C. The average temperature during this period is around -4°C.
What is the wettest time of year in Hachimantai?
The wettest month in Hachimantai is July, with an average of 152mm of precipitation.
What is the driest time of year in Hachimantai?
The driest month in Hachimantai is January, with an average of 69mm of precipitation.
