Three Rivers Weather in January

What's the weather like in Three Rivers (California) in January 2026?

The climate in Three Rivers during January can be summarized as cool and reasonably dry.

January is in the winter in Three Rivers and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 0°C (33°F) is normal.

Three Rivers weather averages (imperial / metric)
Daytime temperature 12.1°C 53.7°F
Nightly temperature 0.4°C 32.6°F
Average temperature 6.2°C 43.2°F
Daily sunshine 6.2 hrs
Avg rainfall 67 mm 2.6 ins
Rainy days 5 days
Sea temperature 13.1°C 55.6°F
Humidity 75%
Windspeed 10.1kph 6 mph

On average January is the wettest month of the year in Three Rivers with around 67mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.2 hours of sunshine per day.

January temperatures in Three Rivers

Three Rivers average temperature in January

January rainfall

Three Rivers average rain in January

January hourly sunshine

Three Rivers average rain in January

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 Three Rivers in January 2025.