Belfast Weather in December

December in Belfast averages 24°C (75°F) during the day and 14°C (57°F) at night. It is the wettest month of the year, with 165 mm (6.5 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Belfast in December

This month marks the year's heaviest rainfall, with frequent intense showers. It's advisable to be prepared with appropriate rain gear to stay dry. You can typically expect 13 days of rain this month, averaging around 165 mm (6.5 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Belfast in December

December in Belfast sees highs of 24°C (75°F) and lows of 14°C (57°F) overnight. Overall, the month follows a fairly predictable daily temperature pattern. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

December in Belfast can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.