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

In August, Portland averages 28°C high / 16°C low with about 8 mm of rain; San Francisco averages 20°C high / 14°C low with about 1 mm.

Portland vs San Francisco in August

San Francisco is the better pick in August — 95 vs 89 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Portland is warm, dry, clean air.

Portland vs San Francisco — August climate, side by side

	Portland	San Francisco
Comfort score	89/100 (A)	95/100 (S)
Feels-like high	28°C	21°C
Avg high / low	28° / 16°	20° / 14°
Rainfall	8 mm	1 mm
Rainy days	1	0
Humidity	57%	76%
Air quality (AQI)	34	35

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

Portland vs San Francisco in August — FAQ

Is August better in Portland or San Francisco?: San Francisco is the better pick in August — 95 vs 89 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Portland is warm, dry, clean air.
What is the weather like in Portland vs San Francisco in August?: In August, Portland averages 28°C high / 16°C low with about 8 mm of rain; San Francisco averages 20°C high / 14°C low with about 1 mm.