Plymouth Weather in December
Plymouth in December averages 11°C (52°F) during the day and 6°C (43°F) at night. This is the wettest month of the year, and part of the winter season.
Rainfall in Plymouth in December
As the rainiest month, carrying an umbrella is advisable to manage the frequent rain. Typically around 20 days of rainfall are expected, averaging 107 mm (4.2 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Plymouth in December
If you're visiting Plymouth in December, expect highs of 11°C (52°F) and overnight lows around 6°C (43°F). December is known for being in the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Plymouth in December
With limited sunshine this month, there are about 55 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.December in Plymouth has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Plymouth's climate page.
Plymouth Temperature in December
Min Temperature
6°C (43°F)
Max Temperature
11°C (52°F)
Chance of Rain
67%
Precipitation
107 mm (4.2 in)
Rainy days
20 days
Humidity
86%
Sunshine
55 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Plymouth typically stay consistent throughout December, with daily highs averaging around 11°C (52°F). Nights are cold, with lows around 5°C (41°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Plymouth in December
Browse day-by-day weather records for Plymouth spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Plymouth historical weather extremes in December
The extremes listed below come from historical weather data collected in Plymouth from 1976 through 2025.
- On December 2, 1985, temperatures climbed to 16°C (61°F), marking the warmest December day on record.
- The coldest December day was on December 31, 1978, with a maximum of -1°C (30°F).
- The lowest overnight temperature recorded in December was -5°C (23°F) (December 7, 2010).
- The heaviest December precipitation occurred on December 22, 2012, when 62 mm (2.4 in) of precipitation fell.
Best Places in the United Kingdom in December
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Plymouth in December
Pack for changing conditions in Plymouth in December. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Plymouth 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 Kingdom, check out our Plymouth's climate page.
Temperature Rainfall Sunshine Humidity
See the full Plymouth climate overview or explore weather in the United Kingdom.
