What to Wear in Seattle in December
Cool, dark and rainy. Expect 3°–7°C with 18 rainy days on average.
☀️
High
7°C
🌙
Low
3°C
🌧️
Rain days
18
🌡️
Feel
Rainy Day
Typical outfit
~5°C average
About December in Seattle
December in Seattle typically brings cool, dark and rainy. With averages of 3°–7°C, the conditions call for rain is in the forecast — waterproof layers are your best friend today.
Dress in waterproof layers rather than one very thick coat. You'll warm up walking and cool down in buildings.
December in other cities