Ishigaki Weather in September

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

September is in the fall / autumn in Ishigaki and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 25°C (77°F) is normal.

On average September is the wettest month of the year in Ishigaki with around 238mm 9.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.8 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 Ishigaki in September 2024.