Santa Rosa Weather in December

What's the weather like in Santa Rosa (California) in December 2024?

The climate in Santa Rosa during December can be summarized as cool and wet.

December is in the winter in Santa Rosa and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 14°C (57°F), whilst at night 3°C (38°F) is normal.

Santa Rosa weather averages (imperial / metric)
Daytime temperature 13.7°C 56.6°F
Nightly temperature 3.4°C 38°F
Average temperature 8.5°C 47.3°F
Daily sunshine 5.6 hrs
Avg rainfall 147 mm 5.8 ins
Rainy days 11 days
Sea temperature 12.6°C 54.6°F
Humidity 81%
Windspeed 11.9kph 7 mph

On average December is the 2nd wettest month of the year in Santa Rosa with around 147mm 5.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 11 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 Santa Rosa

Santa Rosa average temperature in December

December rainfall

Santa Rosa average rain in December

December hourly sunshine

Santa Rosa 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 Santa Rosa in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Santa Rosa weather stats

Santa Rosa weather statistics
Hottest month: July 27.2°C 81°F
Driest month: July 2mm 0.1ins
Sunniest month: April 11hrs
Coldest month: January 13.4°C 56.1°F
Wettest month: January 182mm 7.2ins
Map showing location of Santa Rosa (38.44047, -122.71443) Santa Rosa map pin © Google

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