What is the weather like in Arches National Park vs Grand Canyon National Park in September?

In September, Arches National Park averages 29°C high / 13°C low with about 17 mm of rain; Grand Canyon National Park averages 35°C high / 19°C low with about 14 mm.

Arches National Park vs Grand Canyon National Park in September

Arches National Park is the better pick in September — 84 vs 52 on SeasonMap's comfort score. Arches National Park is warm, dry, clean air, while Grand Canyon National Park is hot, dry, clean air.

Arches National Park vs Grand Canyon National Park — September climate, side by side

	🇺🇸 Arches National Park	🇺🇸 Grand Canyon National Park
Comfort score	84/100 (A)	52/100 (D)
Feels-like high	26°C	33°C
Avg high / low	29° / 13°	35° / 19°
Rainfall	17 mm	14 mm
Rainy days	3	2
Humidity	31%	34%
Air quality (AQI)	39	38

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

Month by month

Arches National Park vs Grand Canyon National Park in September — FAQ

Is September better in Arches National Park or Grand Canyon National Park?: Arches National Park is the better pick in September — 84 vs 52 on SeasonMap's comfort score. Arches National Park is warm, dry, clean air, while Grand Canyon National Park is hot, dry, clean air.
What is the weather like in Arches National Park vs Grand Canyon National Park in September?: In September, Arches National Park averages 29°C high / 13°C low with about 17 mm of rain; Grand Canyon National Park averages 35°C high / 19°C low with about 14 mm.