Please click on any column to get detailed information about Seattle weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
The warmest month in Seattle is july. The average daily temp is 77.4°F. The average nightly temp is 59.1°F.
Precipitation total, in.
Number of rainy days
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
* Charts above show average data for the last 3 years.
Best time for vacation in Seattle
Seattle on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Seattle
Local time: 04:58
December 22, sunday
0600
46°F
NW
3 mph
3 mph
0900
46°F
NW
4 mph
4 mph
1200
48°F
NE
1 mph
1 mph
1500
46°F
NW
2 mph
2 mph
1800
48°F
NW
4 mph
4 mph
2100
48°F
NW
6 mph
6 mph
December 23, monday
0000
48°F
NW
7 mph
7 mph
0300
48°F
N
12 mph
12 mph
