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

United States

Seattle in March

🌷 Spring

Cool and some showers.

🎒 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 March scores 8.4What goes into the score

How it works
🌡️ 12° / 4°C🌧️ 116 mm💧 dew pt 4°🍃 PM2.5 8
  • Weather comfort7.4
    • !Cool (12°C highs / 4°C lows)
    • ✓Comfortable humidity (dew point 4.2°C)
    • !Wet: ~116 mm rain, ~3 heavy-rain days
  • Air quality9.5
    • ✓Good (within WHO guideline) (PM2.5 ~8 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut March side by side with another month
MarJul
Score8.4 Very good9.6 Excellent
Season🌷 Spring☀️ Summer
High / low12° / 4°25° / 14°
Rain116 mm14 mm
Humiditydew pt 4°dew pt 14°
PM2.58 µg/m³7 µg/m³

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

Holidays & crowdsMarch 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in United States this month.

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 March

No major events on our calendar for March.

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