Average wind speed in SeaTac (WA)
The mean monthly wind speed over the year in SeaTac (Washington State), the United States of America (meters per second).
Annually, the wind speed is at its lowest, 4 m/s, in February, April, May, June, July, August, September, October, November and December and peaks at 5 m/s during January and March.
Forecast for SeaTac (WA)
overcast and heavy rain
broken clouds and rain
broken clouds and rain