Belfast Weather in December
During December, Belfast experiences high daytime temperatures of 28°C (82°F) and cooler nights around 25°C (77°F). Expect quite a bit of rainfall. Around 88 mm (3.5 in) is typical.
Rainfall in Belfast in December
Climate statistics over the past 30 years suggest around 8 days of rain, with 88 mm (3.5 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Belfast in December
Belfast in December is worth a visit. The temperature is perfect, with 28°C (82°F) during the day and 25°C (77°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Belfast in December
Expect a lot of sunshine this month, with about 239 hours of sun. These sunny conditions add to the overall experience.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Jamaica, check out our Belfast's climate page.
Belfast Temperature in December
Min Temperature
25°C (77°F)
Max Temperature
28°C (82°F)
Chance of Rain
26%
Precipitation
88 mm (3.5 in)
Rainy days
8 days
Humidity
74% *
Sunshine
239 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Belfast typically stay consistent throughout December, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°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 Belfast in December
Browse day-by-day weather records for Belfast spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Belfast historical weather extremes in December
According to our 22 years of weather records for Belfast, the following extremes were recorded between 2003 and 2025.
- The warmest day in December was on December 29, 2006, with a maximum of 34°C (93°F).
- The coldest December day was on December 14, 2010, with a maximum of 23°C (73°F).
- The lowest overnight temperature recorded in December was 19°C (66°F) (December 15, 2010).
Best Places in Jamaica in December
Find out more about the weather in Jamaica and which places have the best travel conditions in this month. See all of Jamaica in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Belfast in December
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Belfast 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 Jamaica, check out our Belfast's climate page.
Temperature Rainfall Sunshine Humidity
See the full Belfast climate overview or explore weather in Jamaica.
