Portland Weather in December
In Portland, December brings low daytime temperatures around 2°C (36°F), with nights cooling to -4°C (25°F). Expect quite a bit of snow/rainfall this month.
Rainfall in Portland in December
Records from the past 30 years suggest around 15 days of snow/rain, with 63 mm (2.5 in) average for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Portland in December
Portland in December gets highs of 2°C (36°F) during the day and drops to -4°C (25°F) at night. December is known for being in the winter season. Expect a distinctly cold feel throughout the day, not just overnight. Nights are well below freezing at -4°C (25°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. The month is chilly, so ensure you're equipped and dress warmly. Preparation becomes key in these temperatures.
Sunshine in Portland in December
The month is characterized by fewer sunny days, with roughly 82 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and September typically offer the best weather for Portland.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Portland's climate page.
Portland Temperature in December
Min Temperature
-4°C (25°F)
Max Temperature
2°C (36°F)
Chance of Rain
50%
Precipitation
63 mm (2.5 in)
Rainy days
15 days
Humidity
81% *
Sunshine
82 hours *
Percentage Sunshine
29% *
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
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What to Wear in Portland in December
We recommend to layer up for chilly conditions in Portland in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Portland in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Portland's climate page.
Temperature Rainfall Sunshine Humidity
See the full Portland climate overview or explore weather in the United States of America.
