What is the weather like in Portland vs Seattle in May?

In May, Portland averages 21°C high / 10°C low with about 50 mm of rain; Seattle averages 19°C high / 10°C low with about 34 mm.

Portland vs Seattle in May

Portland and Seattle are nearly tied in May — 86 vs 85 on SeasonMap's comfort score. Portland is nice, a little rain, clean air; Seattle is nice, a little rain, clean air.

Portland vs Seattle — May climate, side by side

	🇺🇸 Portland	🇺🇸 Seattle
Comfort score	86/100 (A)	85/100 (A)
Feels-like high	20°C	18°C
Avg high / low	21° / 10°	19° / 10°
Rainfall	50 mm	34 mm
Rainy days	8	5
Humidity	70%	74%
Air quality (AQI)	34	44

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Portland 🇺🇸 United Statesnice, a little rain, clean air · best June86
Seattle 🇺🇸 United Statesnice, a little rain, clean air · best July85

Portland vs Seattle in May — FAQ

Is May better in Portland or Seattle?: Portland and Seattle are nearly tied in May — 86 vs 85 on SeasonMap's comfort score. Portland is nice, a little rain, clean air; Seattle is nice, a little rain, clean air.
What is the weather like in Portland vs Seattle in May?: In May, Portland averages 21°C high / 10°C low with about 50 mm of rain; Seattle averages 19°C high / 10°C low with about 34 mm.