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

In October, Portland averages 18°C high / 9°C low with about 109 mm of rain; San Francisco averages 21°C high / 13°C low with about 29 mm.

Portland vs San Francisco in October

San Francisco is the better pick in October — 90 vs 72 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Portland is nice, rainy, clean air.

Portland vs San Francisco — October climate, side by side

	Portland	San Francisco
Comfort score	72/100 (B)	90/100 (S)
Feels-like high	16°C	21°C
Avg high / low	18° / 9°	21° / 13°
Rainfall	109 mm	29 mm
Rainy days	11	2
Humidity	79%	71%
Air quality (AQI)	32	40

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

Portland vs San Francisco in October — FAQ

Is October better in Portland or San Francisco?: San Francisco is the better pick in October — 90 vs 72 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Portland is nice, rainy, clean air.
What is the weather like in Portland vs San Francisco in October?: In October, Portland averages 18°C high / 9°C low with about 109 mm of rain; San Francisco averages 21°C high / 13°C low with about 29 mm.