Weather · Belfast, United Kingdom
Belfast Weather in December
December in Belfast averages 8°C by day and 4°C at night, with about 116mm of rain. That makes it a reasonable time to visit.
Avg high
8°C
46°F
Avg low
4°C
39°F
Rainfall
116mm
#3 wettest of 12
What to pack
Warm layers and a proper coat. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Belfast builds it around the season for you.