See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
20°
Light Rain
Feels Like: 19°
Min: 18°
Max: 20°
The next few hours will be overcast, with today reaching 20°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
05:25
Sunrise
17:36
Sunset
Moon
Waxing Crescent
10:30
Moonrise
20:04
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
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Weather in Iwanuma today, September 16, 2026
Iwanuma starts September 16, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans.
Expect highs of 20°C and cooler readings close to 18°C. Moisture in the air spans 92%-98%, with the highest values around 23:00. Airflow remains manageable, reaching about 2.0 km/h around 16:00.
Through the afternoon wet weather remains a factor, with rain chances near 98% around 19:00. Cloud also stays substantial, close to 100% near 16:00. Visibility stays generally good near 12.8 km on average, though it can drop toward 9.3 km in thicker cloud or showers. Expect sunrise at 05:25, sunset at 17:36, and 12 hours 11 minutes of sunlight today overall.
The practical takeaway for Iwanuma on September 16, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 20°C.
Frequently asked questions about weather in Iwanuma
How warm does it get in Iwanuma?
The warmest month in Iwanuma is August, with average high temperatures of 28°C. The average temperature during this period is around 25°C.
How cold does it get in Iwanuma?
The coldest month in Iwanuma is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Iwanuma?
The wettest month in Iwanuma is August, with an average of 210mm of precipitation.
What is the driest time of year in Iwanuma?
The driest month in Iwanuma is February, with an average of 48mm of precipitation.
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