Weather in Belfast in December 2024
- December is usually the wettest month of the year in Belfast;
Average weather
Average temperature in Belfast in December
The expected average maximum temperature in December is +45°F with a maximum of +57°F and a minimum of +25°F.
The average maximum temperature goes down 28% by the end of the month, compared with the beginning of the month, from +52°F to +43°F.
Is Belfast warm or cold in December?
Belfast is typically chill in December.
Maximum temperatures go down compared to the previous month from +50°F to +46°F. The minimum temperature also goes down from +41°F to +39°F.
Pack a jumper and a jacket as there will be cooler temperatures.
December is one of the coolest months in Belfast, here is the comparison with other months:
Climate in Belfast in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +50°F | +46°F | +46°F | ||||
| Min. temperature | ||||||
| +21°F | +9°F | +16°F | ||||
| Max. temperature | ||||||
| +64°F | +59°F | +59°F | ||||
| Rainfall | ||||||
| 82 mm | 83 mm | 75 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 85% | 86% | 85% | ||||
| Air pressure | ||||||
| 1008 HPa | 1009 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 2 | ||||
| Cloudy days | ||||||
| 18 | 19 | 20 | ||||
| Rainy days | ||||||
| 10 | 10 | 9 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as ok as in November. It’s getting colder in December. From +50°F in the day, the average maximum temperature lowers to +46°F. Prepare for more rain. Average rainfall goes from 82 mm to 83 mm. Humidity rises from 85% to 86%. The average wind speed doesn’t change much during December, staying around 4 m/s. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Belfast is gradually decreasing during December, going from 3 m/s to 2 m/s over the course of the month.
Rain
Snow
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Belfast?
Climate Change Over the Years
The climate in Belfast in December has not changed that much over the last 43 years.
The average temperature was the lowest in 2010 (+41°F) and the highest in 2015 (+53°F). The driest year was 2010 with only 33 mm of rainfall, and the wettest year was 2015 with 176 mm.
FAQ
Is December a good time to visit Belfast?
Can you sunbathe in Belfast in December?
Is Belfast rainy in December?
Is it sunny in Belfast in December?
Other cities in United Kingdom
Monthly weather in Belfast
Source of the data
For this page, we’ve looked at the typical weather in Belfast, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.