Abashiri Weather in September

The climate in Abashiri during September can be summarized as mild and damp.

September is in the fall / autumn in Abashiri and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 12°C (54°F) is normal.

On average September is the 2nd wettest month of the year in Abashiri with around 117mm 4.6 inches of rain making it a damp 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.

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 Abashiri in September 2025.