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Hourly Forecast
Daylight Hours
05:20
Sunrise
17:33
Sunset
Moon
Waxing Crescent
10:43
Moonrise
19:42
Moonset
Daily Forecast
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
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Weather in Iwamizawa today, September 16, 2026
Cloud cover dominates in Iwamizawa on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a brighter morning, with limited cloud around 46% by 11:00. Conditions start on a settled note.
The day peaks near 22°C and cools toward 10°C. Moisture in the air spans 49%-90%, with the highest values around 23:00. Expect gentle winds, highest near 15:00 at 3.0 km/h.
Afternoon skies stay clogged, peaking close to 100% near 21:00. The grey theme continues rather than clearing out. Visibility stays near 16.1 km. Daylight runs from 05:20 to 17:33, lasting 12 hours 13 minutes of sunlight today.
The practical takeaway for Iwamizawa on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 22°C.
Frequently asked questions about weather in Iwamizawa
How warm does it get in Iwamizawa?
The warmest month in Iwamizawa is August, with average high temperatures of 25°C. The average temperature during this period is around 22°C.
How cold does it get in Iwamizawa?
The coldest month in Iwamizawa is January, with average low temperatures of -9°C. The average temperature during this period is around -6°C.
What is the wettest time of year in Iwamizawa?
The wettest month in Iwamizawa is August, with an average of 198mm of precipitation.
What is the driest time of year in Iwamizawa?
The driest month in Iwamizawa is January, with an average of 58mm of precipitation.
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