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

In September, Phoenix averages 39°C high / 26°C low with about 12 mm of rain; Zion National Park averages 27°C high / 11°C low with about 19 mm.

Phoenix vs Zion National Park in September

Zion National Park is the better pick in September — 89 vs 49 on SeasonMap's comfort score. Zion National Park is warm, dry, clean air, while Phoenix is sweltering, dry, clean air.

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

	🇺🇸 Phoenix	🇺🇸 Zion National Park
Comfort score	49/100 (F)	89/100 (A)
Feels-like high	38°C	24°C
Avg high / low	39° / 26°	27° / 11°
Rainfall	12 mm	19 mm
Rainy days	2	2
Humidity	33%	33%
Air quality (AQI)	45	41

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

Month by month

Phoenix vs Zion National Park in September — FAQ

Is September better in Phoenix or Zion National Park?: Zion National Park is the better pick in September — 89 vs 49 on SeasonMap's comfort score. Zion National Park is warm, dry, clean air, while Phoenix is sweltering, dry, clean air.
What is the weather like in Phoenix vs Zion National Park in September?: In September, Phoenix averages 39°C high / 26°C low with about 12 mm of rain; Zion National Park averages 27°C high / 11°C low with about 19 mm.