What is the weather like in Sequoia National Park vs Yellowstone National Park in September?

In September, Sequoia National Park averages 17°C high / 6°C low with about 28 mm of rain; Yellowstone National Park averages 17°C high / 1°C low with about 59 mm.

Sequoia National Park vs Yellowstone National Park in September

Sequoia National Park is the better pick in September — 91 vs 84 on SeasonMap's comfort score. Sequoia National Park is cool, dry, clean air, while Yellowstone National Park is cool, a little rain, clean air.

Sequoia National Park vs Yellowstone National Park — September climate, side by side

	Sequoia National Park	Yellowstone National Park
Comfort score	91/100 (S)	84/100 (A)
Feels-like high	15°C	14°C
Avg high / low	17° / 6°	17° / 1°
Rainfall	28 mm	59 mm
Rainy days	6	11
Humidity	44%	59%
Air quality (AQI)	45	43

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

Sequoia National Park vs Yellowstone National Park in September — FAQ

Is September better in Sequoia National Park or Yellowstone National Park?: Sequoia National Park is the better pick in September — 91 vs 84 on SeasonMap's comfort score. Sequoia National Park is cool, dry, clean air, while Yellowstone National Park is cool, a little rain, clean air.
What is the weather like in Sequoia National Park vs Yellowstone National Park in September?: In September, Sequoia National Park averages 17°C high / 6°C low with about 28 mm of rain; Yellowstone National Park averages 17°C high / 1°C low with about 59 mm.