What is the weather like in Napa vs San Francisco in August?

In August, Napa averages 29°C high / 14°C low with about 0 mm of rain; San Francisco averages 20°C high / 14°C low with about 1 mm.

Napa vs San Francisco in August

San Francisco is the better pick in August — 95 vs 90 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Napa is hot, dry, clean air.

Napa vs San Francisco — August climate, side by side

	🇺🇸 Napa	🇺🇸 San Francisco
Comfort score	90/100 (S)	95/100 (S)
Feels-like high	29°C	21°C
Avg high / low	29° / 14°	20° / 14°
Rainfall	0 mm	1 mm
Rainy days	0	0
Humidity	59%	76%
Air quality (AQI)	34	35

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

Month by month

Napa 🇺🇸 United Stateshot, dry, clean air · best May90
San Francisco 🇺🇸 United Statesnice, dry, clean air · best September95

Napa vs San Francisco in August — FAQ

Is August better in Napa or San Francisco?: San Francisco is the better pick in August — 95 vs 90 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Napa is hot, dry, clean air.
What is the weather like in Napa vs San Francisco in August?: In August, Napa averages 29°C high / 14°C low with about 0 mm of rain; San Francisco averages 20°C high / 14°C low with about 1 mm.