Nishinoomote Weather in September

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

September is in the fall / autumn in Nishinoomote and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 28°C (83°F), whilst at night 23°C (73°F) is normal.

On average September is the 3rd wettest month of the year in Nishinoomote with around 280mm 11 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.1 hours of sunshine per day.

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 Nishinoomote in September 2025.