Ōiso Weather in September

What's the weather like in Ōiso (Kanagawa) in September 2024?

The climate in Ōiso during September can be summarized as hot, humid and very wet.

September is in the fall / autumn in Ōiso and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 20°C (68°F) is normal.

Ōiso weather averages (imperial / metric)
Daytime temperature 26.5°C 79.6°F
Nightly temperature 19.8°C 67.6°F
Average temperature 23.1°C 73.6°F
Daily sunshine 4.5 hrs
Avg rainfall 214 mm 8.4 ins
Rainy days 19 days
Sea temperature 25.3°C 77.6°F
Humidity 79%
Windspeed 9.7kph 6 mph

On average September is the 2nd wettest month of the year in Ōiso with around 214mm 8.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.5 hours of sunshine per day.

September temperatures in Ōiso

Ōiso average temperature in September

September rainfall

Ōiso average rain in September

September hourly sunshine

Ōiso average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Ōiso in September 2024.

Other monthly averages

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Ōiso weather stats

Ōiso weather statistics
Hottest month: August 30.2°C 86.4°F
Driest month: December 57mm 2.2ins
Sunniest month: December 5.9hrs
Coldest month: January 10.2°C 50.4°F
Wettest month: June 239mm 9.4ins
Map showing location of Ōiso (35.30306, 139.30278) Ōiso map pin © Google

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