Seattle weather in March
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Seattle March weather at a glance
In March, Seattle averages 7.7°C, with typical highs of 11.5°C and lows of 4.9°C. The historical average is 17 wet days and 80% humidity.
Seattle March temperature & humidity
Seattle March rain & wet days
Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.
What to wear in Seattle in March
A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings. Rain is frequent at roughly 17 days in the month; pack a rain jacket and water-resistant shoes.
- DaytimeWarm coat and layered tops · average high 11.5°C
- Morning & eveningInsulating coat, scarf and gloves · average low 4.9°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Seattle March sunrise & sunset times
2026 March · Local time (America/Los_Angeles)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-03-01 | 06:49 | 17:54 | 11h 5m |
| 2026-03-15 | 07:22 | 19:15 | 11h 53m |
| 2026-03-31 | 06:50 | 19:38 | 12h 49m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Best months to visit Seattle
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
March weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Seattle weather like in March?
In March, Seattle averages 7.7°C, with typical highs of 11.5°C and lows of 4.9°C. The historical average is 17 wet days and 80% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Seattle in March?
There are about 17 wet days in March. Pack a rain jacket and water-resistant shoes.
What should I wear in Seattle in March?
A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings. Rain is frequent at roughly 17 days in the month; pack a rain jacket and water-resistant shoes.
What are the best months to visit Seattle?
Recent weather data rates June, July, August, September among the more comfortable months.
Where can I check Seattle weather in March in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Seattle in March?
On 2026-03-15, calculated sunrise is 07:22 and sunset is 19:15 in local time (America/Los_Angeles). Times vary by date and terrain.
Seattle weather by month
More Americas destinations in March
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations