San Rafael Weather in December

What's the weather like in San Rafael (California) in December 2024?

The climate in San Rafael during December can be summarized as cool and wet.

December is in the winter in San Rafael and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 14°C (56°F), whilst at night 5°C (42°F) is normal.

San Rafael weather averages (imperial / metric)
Daytime temperature 13.5°C 56.2°F
Nightly temperature 5.4°C 41.6°F
Average temperature 9.4°C 48.9°F
Daily sunshine 5.6 hrs
Avg rainfall 168 mm 6.6 ins
Rainy days 10 days
Sea temperature 12.7°C 54.9°F
Humidity 80%
Windspeed 12.2kph 8 mph

On average December is the 2nd wettest month of the year in San Rafael with around 168mm 6.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.6 hours of sunshine per day.

December temperatures in San Rafael

San Rafael average temperature in December

December rainfall

San Rafael average rain in December

December hourly sunshine

San Rafael average rain in December

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 San Rafael in December 2024.