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.