Redwood Valley Weather in January

What's the weather like in Redwood Valley (California) in January 2026?

The climate in Redwood Valley during January can be summarized as cool and very wet.

January is in the winter in Redwood Valley and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 1°C (34°F) is normal.

Redwood Valley weather averages (imperial / metric)
Daytime temperature 12.2°C 53.9°F
Nightly temperature 1.3°C 34.3°F
Average temperature 6.7°C 44.1°F
Daily sunshine 6 hrs
Avg rainfall 219 mm 8.6 ins
Rainy days 12 days
Sea temperature 11.8°C 53.2°F
Humidity 81%
Windspeed 11.2kph 7 mph

On average January is the wettest month of the year in Redwood Valley with around 219mm 8.6 inches of rain making it a very wet time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 6 hours of sunshine per day.

January temperatures in Redwood Valley

Redwood Valley average temperature in January

January rainfall

Redwood Valley average rain in January

January hourly sunshine

Redwood Valley 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 Redwood Valley in January 2025.