Montague Weather in December

What's the weather like in Montague (California) in December 2025?

The climate in Montague during December can be summarized as cool and damp.

December is in the winter in Montague and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cold 7°C (44°F), whilst at night -4°C (26°F) is normal.

Montague weather averages (imperial / metric)
Daytime temperature 6.6°C 43.9°F
Nightly temperature -3.6°C 25.5°F
Average temperature 1.5°C 34.7°F
Daily sunshine 3.7 hrs
Avg rainfall 100 mm 3.9 ins
Rainy days 13 days
Sea temperature 11.2°C 52.2°F
Humidity 84%
Windspeed 9kph 6 mph

On average December is the wettest month of the year in Montague with around 100mm 3.9 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.7 hours of sunshine per day.

December temperatures in Montague

Montague average temperature in December

December rainfall

Montague average rain in December

December hourly sunshine

Montague 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 Montague in December 2025.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Montague weather stats

Montague weather statistics
Hottest month: July 31.5°C 88.7°F
Driest month: July 11mm 0.4ins
Sunniest month: July 14hrs
Coldest month: January 6.5°C 43.7°F
Wettest month: December 100mm 3.9ins
Map showing location of Montague (41.7282, -122.5278) Montague map pin © Google

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