Avg High
Seattle in March
Verdict
In Seattle, March has a distinct spring feel. As the season moves along, the weather is warming up. You can usually expect a cool month that feels variable day to day. It often has a mild but frequently damp, typical of changeable seasons feel, especially for outdoor plans.
It suits travellers who want straightforward weather for sightseeing and day trips. Lookouts and coastal walks can feel sharper when the wind is up.
Avg Low
Rain
Daylight
12h
What to expect
- Temperature feel - Fresh conditions with evenings that feel distinctly cooler. Breezes and shade can make it feel cooler.
- Showers & dry spells - Rain is a constant possibility. Expect damp surfaces and slick paths. You’ll want a proper rain setup rather than a ‘just in case’.
- Sun & UV - Sun is noticeable. If you're out for hours, sunscreen is worth it. Shade breaks feel genuinely worthwhile.
- Exposure - A steady breeze, and umbrellas and loose items can struggle on gustier days. It’s the kind of wind you plan around for viewpoints and coastal walks.
March in context
How it compares to the rest of the year in Seattle.
Hottest (avg)
#8 / 12
Wettest (avg)
#4 / 12
Daylight Hours
#7 / 12
Windiest (avg)
#4 / 12
Highest UV
#7 / 12
Most Humid
#6 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 11.9 hours
- UV index (max)
- 5
- Typical sun hours
- 06:18 – 18:15
Rain & Snow
- Total
-
- Rainy days
- 20
- Cloud cover
- 73%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 80%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is March a good time to visit Seattle?
Typical March days in Seattle reach highs of 11°C (52°F) with nights around 3°C (37°F). It usually feels cool by day and cold after dark. Overall, March sits in the middle of the Seattle climate range.
What are temperatures like in March?
Daytime temperatures in March typically peak near 11°C (52°F), while nights drop to around 3°C (37°F). Expect cool afternoons and cold evenings.
How much does it rain in March?
Rainfall in March averages 134 mm (5.3 in) across roughly 20 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in March?
You can expect about 12 hours of daylight in March. Sunrise is typically around 06:18 and sunset near 18:15. Daylight is fairly typical, with enough time for sightseeing.
How strong is the sun in March?
UV levels are moderate (around 5); sunscreen and sunglasses are still a good idea.
Is it windy in March?
In March, average wind speeds are around 11 km/h (7 mph), with gusts on the windiest days reaching about 57 km/h (35 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.