Rimouski Weather in December

The climate in Rimouski during December can be summarized as cold and a little damp.

December is in the winter in Rimouski and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a freezing -5°C (23°F), whilst at night -13°C (9°F) is normal.

On average December is the wettest month of the year in Rimouski with around 93mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 2 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 Rimouski in December 2025.