Seattle, Washington Weather in January

United States · January climate averages and travel tips

Avg high7°C (45°F)
Avg low2°C (36°F)
Rainfall178 mm (7.0 in)
RatingPoor 0.8/10

Expect cold days in Seattle in January: the average high is 7°C (45°F) and the average low is 2°C (36°F). January is winter in United States. The month is wet, with about 178 mm (7.0 in) of rain spread over 19 days, making it the third wettest month of the year. You get roughly 8.6 hours of daylight and frequently cloudy skies.

Is January a good time to visit Seattle?

January is not the best time to visit Seattle (0.8/10) mainly because of the cold. The weather is much better in June to September.

January weather at a glance

Average high7°C (45°F)
Average low2°C (36°F)
Daily mean4°C (40°F)
Rainfall178 mm (7.0 in)
Rainy days (1 mm+)19
Humidity90%
Cloud cover81%
Daylight8.6 hours
Est. sunshine1.8 hours/day
Wind3 km/h
vs December1°C warmer than December, with similar rainfall.

What to pack for Seattle in January

Seattle weather in other months

Jan7°C / 2°C178 mmPoorFeb8°C / 2°C117 mmPoorMar11°C / 3°C133 mmPoorApr13°C / 5°C98 mmPoorMay18°C / 8°C73 mmGoodJun20°C / 11°C57 mmExcellentJul23°C / 13°C19 mmExcellentAug24°C / 13°C25 mmExcellentSep21°C / 11°C62 mmExcellentOct15°C / 8°C125 mmFairNov10°C / 4°C196 mmPoorDec7°C / 2°C184 mmPoor

← DecemberBest time to visit SeattleFebruary →

Better weather in January nearby

Nearby in January

Where else is good in January? See where to go in January.