Onomichi Weather in September

What's the weather like in Onomichi (Hiroshima) in September 2022?

The climate in Onomichi during September can be summarized as warm, humid and wet.

September is in the fall / autumn in Onomichi and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (81°F), whilst at night 19°C (66°F) is normal.

Onomichi weather averages (imperial / metric)
Daytime temperature 27.1°C 80.8°F
Nightly temperature 18.7°C 65.7°F
Average temperature 22.9°C 73.2°F
Daily sunshine 5.7 hrs
Avg rainfall 169 mm 6.6 ins
Rainy days 16 days
Sea temperature 26°C 78.9°F
Humidity 76%
Windspeed 6.5kph 4 mph

On average September is the 3rd wettest month of the year in Onomichi with around 169mm 6.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.7 hours of sunshine per day.

September temperatures in Onomichi

Onomichi average temperature in September

September rainfall

Onomichi average rain in September

September hourly sunshine

Onomichi 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 Onomichi in September 2022.

Other monthly averages

Best places to visit in September

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Onomichi weather stats

Onomichi weather statistics
Hottest month: August 31.1°C 88°F
Driest month: December 28mm 1.1ins
Sunniest month: August 7.5hrs
Coldest month: January 7.7°C 45.9°F
Wettest month: June 207mm 8.1ins
Map showing location of Onomichi (34.41667, 133.2)

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