SeasonScore
Seattle, United States
Photo: Daniel Schwen · CC BY-SA 3.0

United States

Seattle in January

🧥 Winter

Cold and often rainy.

🎒 Pack: warm jacket for evenings · compact umbrella or rain jacket

Best months: Jul (9.6), Aug (9.5), Jun (9.3)

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Why January scores 7.6What goes into the score

How it works
🌡️ 9° / 3°C🌧️ 186 mm💧 dew pt 3°🍃 PM2.5 11
  • Weather comfort6.2
    • !Cold (9°C highs / 3°C lows)
    • ✓Comfortable humidity (dew point 3.2°C)
    • !Wet: ~186 mm rain, ~7 heavy-rain days
  • Air quality9.0
    • ✓Good (within WHO guideline) (PM2.5 ~11 µg/m³)
  • Seasonal hazards9.5
    • !Flood: ~7 heavy-rain days in an average January
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut January side by side with another month
JanJul
Score7.6 Very good9.6 Excellent
Season🧥 Winter☀️ Summer
High / low9° / 3°25° / 14°
Rain186 mm14 mm
Humiditydew pt 3°dew pt 14°
PM2.511 µg/m³7 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Seattle weather-station normals.

Holidays & crowdsJanuary 2027

Long weekend

There's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.

  • New Year 1–3 Jan · 3 days off in a row
  • Martin Luther King Jr. Day 16–18 Jan · 3 days off in a row

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore SeattleEvents, sights, food & souvenirs

Check event dates locally

Pacific Northwest city on Puget Sound, known for Pike Place Market, the Space Needle, coffee culture and views of Mount Rainier.

Events in January

No major events on our calendar for January.

Coming up later

Northwest Folklife FestivalDate variesUsually Memorial Day weekend (late May)

A large community festival of folk music, dance and crafts.

Why go: Free to attend, with donations encouraged.

Where: Seattle Center

Seattle PrideDate variesUsually the last weekend of June

A Pride parade through downtown and events across the city.

Why go: Downtown streets close for the parade.

Where: Downtown and Capitol Hill

SeafairDate variesUsually July to early August

A summer festival season ending with hydroplane boat races and Blue Angels air shows.

Why go: The race weekend draws big crowds to the lake shore.

Where: Lake Washington and neighbourhoods