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

In September, Arches National Park averages 29°C high / 13°C low with about 17 mm of rain; Joshua Tree National Park averages 34°C high / 20°C low with about 8 mm.

Arches National Park vs Joshua Tree National Park in September

Arches National Park is the better pick in September — 84 vs 54 on SeasonMap's comfort score. Arches National Park is warm, dry, clean air, while Joshua Tree National Park is hot, dry, clean air.

Arches National Park vs Joshua Tree National Park — September climate, side by side

	Arches National Park	Joshua Tree National Park
Comfort score	84/100 (A)	54/100 (D)
Feels-like high	26°C	33°C
Avg high / low	29° / 13°	34° / 20°
Rainfall	17 mm	8 mm
Rainy days	3	1
Humidity	31%	31%
Air quality (AQI)	39	49

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

Arches National Park vs Joshua Tree National Park in September — FAQ

Is September better in Arches National Park or Joshua Tree National Park?: Arches National Park is the better pick in September — 84 vs 54 on SeasonMap's comfort score. Arches National Park is warm, dry, clean air, while Joshua Tree National Park is hot, dry, clean air.
What is the weather like in Arches National Park vs Joshua Tree National Park in September?: In September, Arches National Park averages 29°C high / 13°C low with about 17 mm of rain; Joshua Tree National Park averages 34°C high / 20°C low with about 8 mm.