Belfast weather
Our guide to the weather in Belfast during January
We've looked at the most up-to-date weather data for Belfast, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Belfast weather in January.
What's the temperature like in Belfast during January?
January is typically the coolest month in Belfast. The temperature reaches around 7℃ during the daytime, falling away to 3℃ at night. The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.
Does it snow in Belfast during January?
Possibly. There's a chance of snow during January but not as much as you might think. Check the local forecast before you leave home so that you can pack appropriate footwear and clothing.
Does it rain in Belfast during January?
On average, there will be 11 rainy days during the month, amounting to 105.4mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Belfast during January?
You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during January. With cool air temperatures, any breeze will feel cold.
Weather in Belfast
Our month-by-month guide to the weather and climate in Belfast
Belfast weather in
JanuaryBelfast weather in
FebruaryBelfast weather in
MarchBelfast weather in
AprilBelfast weather in
MayBelfast weather in
JuneBelfast weather in
JulyBelfast weather in
AugustBelfast weather in
SeptemberBelfast weather in
OctoberBelfast weather in
NovemberBelfast weather in
December