What is the weather like in Big Sur vs Lassen Volcanic National Park in September?

In September, Big Sur averages 27°C high / 13°C low with about 5 mm of rain; Lassen Volcanic National Park averages 20°C high / 8°C low with about 35 mm.

Big Sur vs Lassen Volcanic National Park in September

Lassen Volcanic National Park is the better pick in September — 94 vs 87 on SeasonMap's comfort score. Lassen Volcanic National Park is nice, a little rain, clean air, while Big Sur is warm, dry, clean air.

Big Sur vs Lassen Volcanic National Park — September climate, side by side

	🇺🇸 Big Sur	🇺🇸 Lassen Volcanic National Park
Comfort score	87/100 (A)	94/100 (S)
Feels-like high	28°C	17°C
Avg high / low	27° / 13°	20° / 8°
Rainfall	5 mm	35 mm
Rainy days	1	5
Humidity	72%	47%
Air quality (AQI)	33	41

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

Month by month

Big Sur vs Lassen Volcanic National Park in September — FAQ

Is September better in Big Sur or Lassen Volcanic National Park?: Lassen Volcanic National Park is the better pick in September — 94 vs 87 on SeasonMap's comfort score. Lassen Volcanic National Park is nice, a little rain, clean air, while Big Sur is warm, dry, clean air.
What is the weather like in Big Sur vs Lassen Volcanic National Park in September?: In September, Big Sur averages 27°C high / 13°C low with about 5 mm of rain; Lassen Volcanic National Park averages 20°C high / 8°C low with about 35 mm.