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Seattle Weather in December

United States

December transforms Seattle into a rainy, chilly destination with temperatures near 45°F and holiday decorations brightening grey skies, perfect for festive markets and indoor holiday activities.

Avg High

7°C

Avg Low

3°C

Daily Rain

6.1mm

Rainfall

High

💡 Best months to visit Seattle: Jul, Aug, Jun

Seattle Weather by Month

Month	High	Low	Rain
Jan	8°C	3°C	6.2mm
Feb	8°C	2°C	3.6mm
Mar	10°C	3°C	2.8mm
Apr	13°C	5°C	2.9mm
May	17°C	9°C	1.9mm
Jun	21°C	12°C	1.9mm
Jul	25°C	15°C	0.2mm
Aug	25°C	15°C	0.7mm
Sep	21°C	13°C	2mm
Oct	16°C	9°C	3.6mm
Nov	10°C	5°C	6mm
Dec	7°C	3°C	6.1mm

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