Seattle Weather in May

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

The climate in Seattle during May can be summarized as mild and reasonably dry.

May is in the spring in Seattle and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 18°C (64°F), whilst at night 8°C (46°F) is normal.

Seattle weather averages (imperial / metric)
Daytime temperature 18°C 64.4°F
Nightly temperature 8°C 46.4°F
Average temperature 13°C 55.4°F
Daily sunshine 8.6 hrs
Avg rainfall 46 mm 1.8 ins
Rainy days 11 days
Sea temperature 10.5°C 50.9°F
Humidity 69%
Windspeed 13.3kph 8 mph

On average May is the 4th driest month of the year in Seattle with around 46mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.6 hours of sunshine per day.

May temperatures in Seattle

Seattle average temperature in May

May rainfall

Seattle average rain in May

May hourly sunshine

Seattle average rain in May

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 May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Seattle weather stats

Seattle weather statistics
Hottest month: August 23.5°C 74.3°F
Driest month: July 21mm 0.8ins
Sunniest month: July 10.8hrs
Coldest month: January 7.2°C 45°F
Wettest month: December 151mm 5.9ins
Map showing location of Seattle (47.60621, -122.33207) Seattle map pin © Google

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