What is the weather like in Mount Rainier National Park vs Portland in May?

In May, Mount Rainier National Park averages 4°C high / -5°C low with about 95 mm of rain; Portland averages 21°C high / 10°C low with about 50 mm.

Mount Rainier National Park vs Portland in May

Portland is the better pick in May — 86 vs 71 on SeasonMap's comfort score. Portland is nice, a little rain, clean air, while Mount Rainier National Park is cold, rainy, clean air.

Mount Rainier National Park vs Portland — May climate, side by side

	🇺🇸 Mount Rainier National Park	🇺🇸 Portland
Comfort score	71/100 (B)	86/100 (A)
Feels-like high	1°C	20°C
Avg high / low	4° / -5°	21° / 10°
Rainfall	95 mm	50 mm
Rainy days	15	8
Humidity	79%	70%
Air quality (AQI)	41	34

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

Month by month

Mount Rainier National Park vs Portland in May — FAQ

Is May better in Mount Rainier National Park or Portland?: Portland is the better pick in May — 86 vs 71 on SeasonMap's comfort score. Portland is nice, a little rain, clean air, while Mount Rainier National Park is cold, rainy, clean air.
What is the weather like in Mount Rainier National Park vs Portland in May?: In May, Mount Rainier National Park averages 4°C high / -5°C low with about 95 mm of rain; Portland averages 21°C high / 10°C low with about 50 mm.