The weather in Seattle in March is very cold with temperatures between 37°F and 51°F, warm clothes are a must.
You can expect rain for roughly half of the month of March in Seattle. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Seattle can expect a few days of snow in March.
Our weather forecast can give you a great sense of what weather to expect in Seattle in March 2026.
If you’re planning to visit Seattle in the near future, we highly recommend that you review the 14 day weather forecast for Seattle before you arrive.
Temperatures
51° / 37°
Rainy Days
9
Snowy Days
1
Dry Days
21
Rainfall
3.15
in
Sun Hours
7.9
Hrs
