West Lake Sammamish Weather in May

What's the weather like in West Lake Sammamish (Washington) in May 2024?

The climate in West Lake Sammamish during May can be summarized as mild and reasonably dry.

May is in the spring in West Lake Sammamish and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 7°C (45°F) is normal.

West Lake Sammamish weather averages (imperial / metric)
Daytime temperature 17.4°C 63.3°F
Nightly temperature 7°C 44.6°F
Average temperature 12.2°C 54°F
Daily sunshine 8.6 hrs
Avg rainfall 68 mm 2.7 ins
Rainy days 10 days
Sea temperature 10.5°C 50.9°F
Humidity 67%
Windspeed 13.3kph 8 mph

On average May is the 5th driest month of the year in West Lake Sammamish with around 68mm 2.7 inches of rain making it a reasonably dry 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 8.6 hours of sunshine per day.

May temperatures in West Lake Sammamish

West Lake Sammamish average temperature in May

May rainfall

West Lake Sammamish average rain in May

May hourly sunshine

West Lake Sammamish 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 West Lake Sammamish in May 2024.