Winters in Burien are cool and damp, with temperatures often below freezing, but mild periods bring temperatures into the mid-teens. Spring is a gradual warming period, with April and May seeing significant increases in temperature, eventually reaching averages above 20°C by June. Summer is warm to hot, with July and August being the warmest months, though temperatures rarely exceed 35°C. Autumn brings cooler temperatures, with October and November experiencing chilly mornings and mild afternoons, eventually leading into another cool winter.