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

In September, Joshua Tree National Park averages 34°C high / 20°C low with about 8 mm of rain; Phoenix averages 39°C high / 26°C low with about 12 mm.

Joshua Tree National Park vs Phoenix in September

Joshua Tree National Park is the better pick in September — 54 vs 49 on SeasonMap's comfort score. Joshua Tree National Park is hot, dry, clean air, while Phoenix is sweltering, dry, clean air.

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

	🇺🇸 Joshua Tree National Park	🇺🇸 Phoenix
Comfort score	54/100 (D)	49/100 (F)
Feels-like high	33°C	38°C
Avg high / low	34° / 20°	39° / 26°
Rainfall	8 mm	12 mm
Rainy days	1	2
Humidity	31%	33%
Air quality (AQI)	49	45

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

Month by month

Joshua Tree National Park vs Phoenix in September — FAQ

Is September better in Joshua Tree National Park or Phoenix?: Joshua Tree National Park is the better pick in September — 54 vs 49 on SeasonMap's comfort score. Joshua Tree National Park is hot, dry, clean air, while Phoenix is sweltering, dry, clean air.
What is the weather like in Joshua Tree National Park vs Phoenix in September?: In September, Joshua Tree National Park averages 34°C high / 20°C low with about 8 mm of rain; Phoenix averages 39°C high / 26°C low with about 12 mm.