- Book holiday cottages up to 2 years in advance
- Pay just 30% deposit today to secure property
- Over 15,000 holiday cottages across the UK & Ireland
Belfast weather in December 2021
Get the latest coronavirus (Covid-19) updates for Northern Ireland with current travel advice and statistics on new cases per 100,000 and vaccine.
- 88°C max day temperature
- 2020 days with some rainfall
- 22°C min night temperature
- 77 hours of daylight per day
- 0No heat & humidity
- 9494 mm of monthly rainfall
- 0No UV (Maximum) Index UV index
- 1010°C sea temperature
Recommended for Northern Ireland
The December weather guide for Belfast, Northern Ireland shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
How warm is it in Belfast in December?
Daytime temperatures usually reach 8°C in Belfast in December, falling to 2°C at night.
How sunny is it in Belfast in December?
There are normally 1 hour of bright sunshine each day in Belfast in December - that's 18% of daylight hours.
Is the sea cold around Belfast in December?
The average sea temperature around Belfast in December is 10°C.
Does it rain in Belfast in December?
There are usually 20 days with some rain in Belfast in December and the average monthly rainfall is 94mm.
Metric (°C / mm) | Imperial (°F / inches)
Belfast sunrise & sunset times for December 2021
Browse the sunrise and sunset times for Belfast in December 2021. Select a month to view Belfast sunrise & sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st December 2021||08:23||16:03|
|Thursday, 16th December 2021||08:41||15:58|
|Friday, 31st December 2021||08:46||16:08|
- Explore cottages in the UK for groups
- Enjoy a range of facilities & activities
- Filter search by selecting holiday preferences
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.