What is the weather like in Channel Islands National Park vs Pinnacles National Park in September?

In September, Channel Islands National Park averages 19°C high / 17°C low with about 5 mm of rain; Pinnacles National Park averages 31°C high / 11°C low with about 3 mm.

Channel Islands National Park vs Pinnacles National Park in September

Channel Islands National Park is the better pick in September — 89 vs 75 on SeasonMap's comfort score. Channel Islands National Park is nice, dry, clean air, while Pinnacles National Park is hot, dry, clean air.

Channel Islands National Park vs Pinnacles National Park — September climate, side by side

	🇺🇸 Channel Islands National Park	🇺🇸 Pinnacles National Park
Comfort score	89/100 (A)	75/100 (B)
Feels-like high	19°C	31°C
Avg high / low	19° / 17°	31° / 11°
Rainfall	5 mm	3 mm
Rainy days	1	1
Humidity	82%	55%
Air quality (AQI)	34	35

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

Month by month

Channel Islands National Park vs Pinnacles National Park in September — FAQ

Is September better in Channel Islands National Park or Pinnacles National Park?: Channel Islands National Park is the better pick in September — 89 vs 75 on SeasonMap's comfort score. Channel Islands National Park is nice, dry, clean air, while Pinnacles National Park is hot, dry, clean air.
What is the weather like in Channel Islands National Park vs Pinnacles National Park in September?: In September, Channel Islands National Park averages 19°C high / 17°C low with about 5 mm of rain; Pinnacles National Park averages 31°C high / 11°C low with about 3 mm.