Portland Weather in December

December in Portland averages 11°C (52°F) during the day and 7°C (45°F) at night. Quite a bit of rainfall is typical this month, with around 108 mm (4.3 in) on average. An umbrella is a good idea.

Rainfall in Portland in December

Based on our climate data of the past 30 years, about 17 days of rain are anticipated, with 108 mm (4.3 in) on average. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Portland in December

Portland in December gets highs of 11°C (52°F) during the day and drops to 7°C (45°F) at night. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights drop to 7°C (45°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Portland in December

This month is characterized by fewer sunny days, with about 55 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. August typically offers the best weather for Portland.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Portland's climate page.

Portland Temperature in December

Min Temperature 7°C (45°F)  

Max Temperature 11°C (52°F)  

Chance of Rain 57%  

Precipitation 108 mm (4.3 in)  

Rainy days 17 days  

Sunshine 55 hours *  

Percentage Sunshine *  

* Data from: Salisbury, the United Kingdom (74 KM, 46 Miles).

What to Wear in Portland in December

The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. 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.

Swimming

4/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

5/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Portland's climate page.

More climate data for Portland

Temperature Rainfall Sunshine

See the full Portland climate overview or explore weather in the United Kingdom.