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

In September, Grand Canyon National Park averages 35°C high / 19°C low with about 14 mm of rain; Saguaro National Park averages 30°C high / 18°C low with about 33 mm.

Grand Canyon National Park vs Saguaro National Park in September

Saguaro National Park is the better pick in September — 78 vs 52 on SeasonMap's comfort score. Saguaro National Park is hot, a little rain, clean air, while Grand Canyon National Park is hot, dry, clean air.

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

	🇺🇸 Grand Canyon National Park	🇺🇸 Saguaro National Park
Comfort score	52/100 (D)	78/100 (B)
Feels-like high	33°C	29°C
Avg high / low	35° / 19°	30° / 18°
Rainfall	14 mm	33 mm
Rainy days	2	6
Humidity	34%	42%
Air quality (AQI)	38	34

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

Month by month

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

Is September better in Grand Canyon National Park or Saguaro National Park?: Saguaro National Park is the better pick in September — 78 vs 52 on SeasonMap's comfort score. Saguaro National Park is hot, a little rain, clean air, while Grand Canyon National Park is hot, dry, clean air.
What is the weather like in Grand Canyon National Park vs Saguaro National Park in September?: In September, Grand Canyon National Park averages 35°C high / 19°C low with about 14 mm of rain; Saguaro National Park averages 30°C high / 18°C low with about 33 mm.