What is the weather like in Napa vs Santa Cruz, California in September?

In September, Napa averages 30°C high / 13°C low with about 5 mm of rain; Santa Cruz, California averages 25°C high / 11°C low with about 5 mm.

Napa vs Santa Cruz, California in September

Napa and Santa Cruz, California are nearly tied in September — 88 vs 88 on SeasonMap's comfort score. Napa is hot, dry, clean air; Santa Cruz, California is warm, dry, clean air.

Napa vs Santa Cruz, California — September climate, side by side

	🇺🇸 Napa	🇺🇸 Santa Cruz, California
Comfort score	88/100 (A)	88/100 (A)
Feels-like high	30°C	25°C
Avg high / low	30° / 13°	25° / 11°
Rainfall	5 mm	5 mm
Rainy days	1	1
Humidity	59%	78%
Air quality (AQI)	34	33

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

Month by month

Napa vs Santa Cruz, California in September — FAQ

Is September better in Napa or Santa Cruz, California?: Napa and Santa Cruz, California are nearly tied in September — 88 vs 88 on SeasonMap's comfort score. Napa is hot, dry, clean air; Santa Cruz, California is warm, dry, clean air.
What is the weather like in Napa vs Santa Cruz, California in September?: In September, Napa averages 30°C high / 13°C low with about 5 mm of rain; Santa Cruz, California averages 25°C high / 11°C low with about 5 mm.