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

In May, Mount Rainier National Park averages 4°C high / -5°C low with about 95 mm of rain; Olympic National Park averages 11°C high / 2°C low with about 99 mm.

Mount Rainier National Park vs Olympic National Park in May

Olympic National Park is the better pick in May — 80 vs 71 on SeasonMap's comfort score. Olympic National Park is cool, rainy, clean air, while Mount Rainier National Park is cold, rainy, clean air.

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

	🇺🇸 Mount Rainier National Park	🇺🇸 Olympic National Park
Comfort score	71/100 (B)	80/100 (A)
Feels-like high	1°C	10°C
Avg high / low	4° / -5°	11° / 2°
Rainfall	95 mm	99 mm
Rainy days	15	10
Humidity	79%	76%
Air quality (AQI)	41	37

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

Month by month

Mount Rainier National Park vs Olympic National Park in May — FAQ

Is May better in Mount Rainier National Park or Olympic National Park?: Olympic National Park is the better pick in May — 80 vs 71 on SeasonMap's comfort score. Olympic National Park is cool, rainy, clean air, while Mount Rainier National Park is cold, rainy, clean air.
What is the weather like in Mount Rainier National Park vs Olympic National Park in May?: In May, Mount Rainier National Park averages 4°C high / -5°C low with about 95 mm of rain; Olympic National Park averages 11°C high / 2°C low with about 99 mm.