Napa Weather in March

What's the weather like in Napa (California) in March 2024?

The climate in Napa during March can be summarized as mild and a little damp.

March is in the spring in Napa and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 5°C (42°F) is normal.

Napa weather averages (imperial / metric)
Daytime temperature 17.2°C 63°F
Nightly temperature 5.4°C 41.7°F
Average temperature 11.3°C 52.3°F
Daily sunshine 9.4 hrs
Avg rainfall 97 mm 3.8 ins
Rainy days 10 days
Sea temperature 11.9°C 53.5°F
Humidity 72%
Windspeed 15.8kph 10 mph

On average March is the 5th wettest month of the year in Napa with around 97mm 3.8 inches of rain making it a a little damp 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 9.4 hours of sunshine per day.

March temperatures in Napa

Napa average temperature in March

March rainfall

Napa average rain in March

March hourly sunshine

Napa average rain in March

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 Napa in March 2024.