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

In August, Mount Rainier National Park averages 14°C high / 3°C low with about 25 mm of rain; Olympic National Park averages 19°C high / 9°C low with about 37 mm.

Mount Rainier National Park vs Olympic National Park in August

Olympic National Park is the better pick in August — 96 vs 92 on SeasonMap's comfort score. Olympic National Park is nice, a little rain, clean air, while Mount Rainier National Park is cool, dry, clean air.

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

	🇺🇸 Mount Rainier National Park	🇺🇸 Olympic National Park
Comfort score	92/100 (S)	96/100 (S)
Feels-like high	12°C	18°C
Avg high / low	14° / 3°	19° / 9°
Rainfall	25 mm	37 mm
Rainy days	5	3
Humidity	66%	68%
Air quality (AQI)	39	31

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

Month by month

Mount Rainier National Park 🇺🇸 United Statescool, dry, clean air · best August92
Olympic National Park 🇺🇸 United Statesnice, a little rain, clean air · best August96

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

Is August better in Mount Rainier National Park or Olympic National Park?: Olympic National Park is the better pick in August — 96 vs 92 on SeasonMap's comfort score. Olympic National Park is nice, a little rain, clean air, while Mount Rainier National Park is cool, dry, clean air.
What is the weather like in Mount Rainier National Park vs Olympic National Park in August?: In August, Mount Rainier National Park averages 14°C high / 3°C low with about 25 mm of rain; Olympic National Park averages 19°C high / 9°C low with about 37 mm.