Weather in Seattle: December
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Average day temperature: | 43.5°F |
| Average night temperature: | 38.4°F | |
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Number of sunny days: | 5 days |
| Day length: | 8.4 - 8.7 hours | |
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Number of rainy days: | 6 days |
| Precipitation totals: | 2.7 in. | |
| more information | ||
14 days
forecast
forecast
| Seattle |
weather in
January
January
| Seattle |
Air temperature in December, °F
Show year:
2023
2022
2021
The highest day temperature during December of 2023 was 53°F. At the same time the lowest night temperature was 33°F. Day and night temperature averages during December were 46.1°F and 42.4°F.
Sunny, partly cloudy and cloudy days
Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Seattle in December is 2.8 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 5.3 mph The wind's strength is relatively same during the whole year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 2.0.
Best time for vacation in Seattle
Seattle on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Seattle
Local time: 00:27
December 22, sunday
0300
48°F
NW
4 mph
4 mph
0600
46°F
NW
3 mph
3 mph
0900
46°F
NW
4 mph
4 mph
1200
48°F
W
3 mph
3 mph
1500
46°F
NW
2 mph
2 mph
1800
48°F
NW
4 mph
4 mph
2100
48°F
NW
5 mph
5 mph
December 23, monday
0000
48°F
N
7 mph
7 mph
