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Portland Weather in December
United States · early winter in Northern Hemisphere / early summer in Southern Hemisphere
Portland in the Willamette Valley between the Coast Range and Cascades has a classic Pacific Northwest marine climate. The city is famous for its mild, rainy winters and warm, sunny summers. The 2021 Heat Dome brought temperatures to 116°F, shattering records and causing hundreds of deaths — an extreme event showing climate change impacts on a city with minimal air conditioning.
Holiday season. Many cities decorate beautifully. Book ahead for December travel.
Current Weather in Portland Right Now
37°F
Broken Clouds
Feels like 37°F · H 39°F / L 35°F