April in Burien averages a daily high of 14.5°C with nights around 5.9°C. Expect roughly 14.7 wet days totalling 73.3mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Burien is July–August.
Based on SEATTLE TACOMA AIRPORT, WA US (3.8km), 1995–2024. 30 years of April data.