Tomakomai Weather in September

What's the weather like in Tomakomai (Hokkaidō) in September 2023?

The climate in Tomakomai during September can be summarized as mild and wet.

September is in the fall / autumn in Tomakomai and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 13°C (55°F) is normal.

Tomakomai weather averages (imperial / metric)
Daytime temperature 20.8°C 69.4°F
Nightly temperature 12.6°C 54.7°F
Average temperature 16.7°C 62.1°F
Daily sunshine 5.8 hrs
Avg rainfall 169 mm 6.7 ins
Rainy days 17 days
Sea temperature 20.7°C 69.2°F
Humidity 79%
Windspeed 11.5kph 7 mph

On average September is the 2nd wettest month of the year in Tomakomai with around 169mm 6.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.8 hours of sunshine per day.

September temperatures in Tomakomai

Tomakomai average temperature in September

September rainfall

Tomakomai average rain in September

September hourly sunshine

Tomakomai 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 Tomakomai in September 2023.

Other monthly averages

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Tomakomai weather stats

Tomakomai weather statistics
Hottest month: August 23.3°C 73.9°F
Driest month: February 41mm 1.6ins
Sunniest month: October 5.8hrs
Coldest month: January -0.9°C 30.4°F
Wettest month: August 192mm 7.6ins
Map showing location of Tomakomai (42.63694, 141.60333) Tomakomai map pin © Google

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