Ashibetsu Weather in December

The climate in Ashibetsu during December can be summarized as cold and damp.

December is in the winter in Ashibetsu and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a freezing -2°C (29°F), whilst at night -9°C (15°F) is normal.

On average December is the 6th wettest month of the year in Ashibetsu with around 101mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 29 days, although this may vary considerably.

On the flip side this corresponds to an average of 2.7 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 Ashibetsu in December 2025.