Seattle Weather in March

What's the weather like in Seattle (Washington) in March 2024?

The climate in Seattle during March can be summarized as cool and a little damp.

March is in the spring in Seattle and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 12°C (53°F), whilst at night 4°C (38°F) is normal.

Seattle weather averages (imperial / metric)
Daytime temperature 11.9°C 53.3°F
Nightly temperature 3.6°C 38.4°F
Average temperature 7.7°C 45.9°F
Daily sunshine 5.9 hrs
Avg rainfall 95 mm 3.7 ins
Rainy days 16 days
Sea temperature 8.3°C 47°F
Humidity 74%
Windspeed 14kph 9 mph

On average March is the 5th wettest month of the year in Seattle with around 95mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.9 hours of sunshine per day.

March temperatures in Seattle

Seattle average temperature in March

March rainfall

Seattle average rain in March

March hourly sunshine

Seattle 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 Seattle in March 2024.