Morioka Weather in September

The climate in Morioka during September can be summarized as warm and wet.

September is in the fall / autumn in Morioka and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 14°C (56°F) is normal.

On average September is the 3rd wettest month of the year in Morioka with around 163mm 6.4 inches of rain making it a 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 5 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 Morioka in September 2025.