Burien Weather in May

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

May is in the spring in Burien and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 18°C (65°F), whilst at night 7°C (45°F) is normal.

On average May is the 4th driest month of the year in Burien with around 43mm 1.7 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 8.8 hours of sunshine per day.

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 Burien in May 2025.