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

In September, Arches National Park averages 29°C high / 13°C low with about 17 mm of rain; Zion National Park averages 27°C high / 11°C low with about 19 mm.

Arches National Park vs Zion National Park in September

Zion National Park is the better pick in September — 89 vs 84 on SeasonMap's comfort score. Zion National Park is warm, dry, clean air, while Arches National Park is warm, dry, clean air.

Arches National Park vs Zion National Park — September climate, side by side

	🇺🇸 Arches National Park	🇺🇸 Zion National Park
Comfort score	84/100 (A)	89/100 (A)
Feels-like high	26°C	24°C
Avg high / low	29° / 13°	27° / 11°
Rainfall	17 mm	19 mm
Rainy days	3	2
Humidity	31%	33%
Air quality (AQI)	39	41

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

Month by month

Arches National Park vs Zion National Park in September — FAQ

Is September better in Arches National Park or Zion National Park?: Zion National Park is the better pick in September — 89 vs 84 on SeasonMap's comfort score. Zion National Park is warm, dry, clean air, while Arches National Park is warm, dry, clean air.
What is the weather like in Arches National Park vs Zion National Park in September?: In September, Arches National Park averages 29°C high / 13°C low with about 17 mm of rain; Zion National Park averages 27°C high / 11°C low with about 19 mm.