Seattle weather by month › May
Seattle in May: weather and what to expect
It’s fine, but not the best. June and August are more pleasant.
May weather in Seattle
Daytime high65°F 18°C
Night low48°F 9°C
Rain1.8 in 45 mm
AirDry
SunSunny
In May, Seattle averages highs of 65°F (18°C) and lows of 48°F (9°C), with 1.8 in (45 mm) of rain. The air feels dry and the sun is sunny. 1991–2020 averages, not a forecast.
Pack: light layers, a sweater for evenings.
Places with the same weather in May
Match out of 100 for May, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec