What is the weather like in Big Bend National Park vs Big Sky in September?

In September, Big Bend National Park averages 28°C high / 17°C low with about 44 mm of rain; Big Sky averages 19°C high / 7°C low with about 63 mm.

Big Bend National Park vs Big Sky in September

Big Bend National Park is the better pick in September — 81 vs 23 on SeasonMap's comfort score. Big Bend National Park is warm, a little rain, clean air, while Big Sky is nice, a little rain, clean air.

Big Bend National Park vs Big Sky — September climate, side by side

	🇺🇸 Big Bend National Park	🇺🇸 Big Sky
Comfort score	81/100 (A)	23/100 (F)
Feels-like high	28°C	17°C
Avg high / low	28° / 17°	19° / 7°
Rainfall	44 mm	63 mm
Rainy days	5	10
Humidity	48%	60%
Air quality (AQI)	38	39

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

Month by month

Big Bend National Park vs Big Sky in September — FAQ

Is September better in Big Bend National Park or Big Sky?: Big Bend National Park is the better pick in September — 81 vs 23 on SeasonMap's comfort score. Big Bend National Park is warm, a little rain, clean air, while Big Sky is nice, a little rain, clean air.
What is the weather like in Big Bend National Park vs Big Sky in September?: In September, Big Bend National Park averages 28°C high / 17°C low with about 44 mm of rain; Big Sky averages 19°C high / 7°C low with about 63 mm.