January · United States
Best time to visit Seattle in January Weather, crowds & prices
Weather in Seattle in January
Average temperature 4°C, 187 mm of rain, about 0 days with 6+ hours of sunshine and 91% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
January score
2.6/10
Ranked #11 of 12 months
- Avg temp
- 4°C
- Rainfall
- 187 mm
- Humidity
- 91%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
January in Seattle scores 2.6/10 for sightseeing and cultural travel - ranked #11 of 12. Expect around 4°C, 187 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Ferry views, coffee culture, and evergreen trails peak in clearer May-September weather.
January in Seattle — the hardest end of the year
Expect 4°C (40°F) in January. A good month for city streets, viewpoints and long meals; leave swimming for another season.
187 mm of rain signals a properly wet month, with only almost no days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 2.6/10 on the same scale — 11th of 12 months, versus 9.6/10 for the best month here.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
Expect low-season pricing, and crowds are light for this destination.
If your dates are flexible, July is materially better in Seattle — 7 points higher on the same scale.
Frequently asked
- What is the weather like in Seattle in January?
- In January, Seattle averages 4°C, 187 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 2.6/10.
- Is January a good time to visit Seattle?
- January earns a 2.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Seattle in January?
- Expect about 187 mm of rain in January. Average humidity is 91% and there are about 0 days with 6+ hours of sunshine.
Curated in Seattle
Tickets & experiences
Things to do in Seattle
Seattle, United States. Live activities and tours from GetYourGuide, matched to this destination.