What is the weather like in Calgary vs Great Sand Dunes National Park in September?

In September, Calgary averages 20°C high / 6°C low with about 27 mm of rain; Great Sand Dunes National Park averages 24°C high / 9°C low with about 24 mm.

Calgary vs Great Sand Dunes National Park in September

Great Sand Dunes National Park is the better pick in September — 93 vs 86 on SeasonMap's comfort score. Great Sand Dunes National Park is nice, dry, clean air, while Calgary is nice, dry, clean air.

Calgary vs Great Sand Dunes National Park — September climate, side by side

	🇨🇦 Calgary	🇺🇸 Great Sand Dunes National Park
Comfort score	86/100 (A)	93/100 (S)
Feels-like high	17°C	22°C
Avg high / low	20° / 6°	24° / 9°
Rainfall	27 mm	24 mm
Rainy days	5	4
Humidity	63%	46%
Air quality (AQI)	41	37

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

Month by month

Calgary vs Great Sand Dunes National Park in September — FAQ

Is September better in Calgary or Great Sand Dunes National Park?: Great Sand Dunes National Park is the better pick in September — 93 vs 86 on SeasonMap's comfort score. Great Sand Dunes National Park is nice, dry, clean air, while Calgary is nice, dry, clean air.
What is the weather like in Calgary vs Great Sand Dunes National Park in September?: In September, Calgary averages 20°C high / 6°C low with about 27 mm of rain; Great Sand Dunes National Park averages 24°C high / 9°C low with about 24 mm.