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

In January, Portland averages 9°C high / 3°C low with about 160 mm of rain; San Francisco averages 15°C high / 9°C low with about 123 mm.

Portland vs San Francisco in January

San Francisco is the better pick in January — 68 vs 49 on SeasonMap's comfort score. San Francisco is cool, rainy, clean air, while Portland is cold, soaked, clean air.

Portland vs San Francisco — January climate, side by side

	Portland	San Francisco
Comfort score	49/100 (F)	68/100 (C)
Feels-like high	6°C	13°C
Avg high / low	9° / 3°	15° / 9°
Rainfall	160 mm	123 mm
Rainy days	18	10
Humidity	86%	83%
Air quality (AQI)	31	45

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

Portland vs San Francisco in January — FAQ

Is January better in Portland or San Francisco?: San Francisco is the better pick in January — 68 vs 49 on SeasonMap's comfort score. San Francisco is cool, rainy, clean air, while Portland is cold, soaked, clean air.
What is the weather like in Portland vs San Francisco in January?: In January, Portland averages 9°C high / 3°C low with about 160 mm of rain; San Francisco averages 15°C high / 9°C low with about 123 mm.