Weather in Seattle in december
Climate normals based on 10 years of historical data for Seattle, Amerikas Förenta Stater.
Average high
7°C
Average low
3°C
Rainfall
202 mm
19 rainy days
Sunshine
1.4h/day
Luftfuktighet
85%
How Hot Is Seattle in december?
The month-long average for Seattle in December is 5°C, ranging between 7°C highs and 3°C lows.
Sunshine Hours in december
December is dim in Seattle — sunrise doesn't come until 7:50 am and the sun sets early at 4:20 pm, leaving only about 1.4h of direct sun on a typical day.
Does It Rain In Seattle In december?
Seattle is saturated: 202mm of rain in 19 days, the wettest stretch of the year.
Is Seattle Humid In december?
Tropical-style humidity defines Seattle's December: 85% on average, with constant mugginess.
Does It Snow In Seattle In december?
Seattle sees occasional snow in December: roughly 1.0 snow days a month.
Wind In Seattle In december
December brings gentle winds to Seattle — averaging 16 kph.
Cloud Cover In Seattle In december
Seattle's December runs cloudy: typical cloud cover of 74%.
Cities With Similar Weather In december
Weather in Seattle, month by month
| Month | High / Low | Regn | |
|---|---|---|---|
| Vädret i januari | 8°C / 3°C | 188mm | Details → |
| Vädret i februari | 8°C / 2°C | 124mm | Details → |
| Vädret i mars | 11°C / 3°C | 109mm | Details → |
| Vädret i april | 14°C / 5°C | 87mm | Details → |
| Vädret i maj | 19°C / 9°C | 55mm | Details → |
| Vädret i juni | 22°C / 11°C | 54mm | Details → |
| Vädret i juli | 26°C / 14°C | 15mm | Details → |
| Vädret i augusti | 26°C / 15°C | 27mm | Details → |
| Vädret i september | 21°C / 12°C | 67mm | Details → |
| Vädret i oktober | 16°C / 8°C | 134mm | Details → |
| Vädret i november | 10°C / 5°C | 192mm | Details → |
| Vädret i december | 7°C / 3°C | 202mm |