Northern Ireland weather
Our guide to the weather in Northern Ireland during January
We've looked at the most up-to-date weather data for Northern Ireland, 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 Northern Ireland weather in January.
How cold is it in Northern Ireland during January?
January is typically the coolest month in Northern Ireland. The temperature reaches around 4℃ during the daytime, falling away to -0℃ 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 Northern Ireland during January?
Yes, although it doesn't snow as much as you might expect. It's worth checking the local forecast a few days before you leave home so that you can pack appropriate footwear and clothing.
Does it rain in Northern Ireland during January?
On average, there will be 10 rainy days during the month, amounting to 75.7mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. Of course, some of that rain will actually fall as sleet, snow, and possibly freezing rain. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Northern Ireland during January?
You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during January. With cold air temperatures at this time of year, any breeze will feel very cold.
Weather in Northern Ireland
Our month-by-month guide to the weather and climate in Northern Ireland
Northern Ireland weather in
JanuaryNorthern Ireland weather in
FebruaryNorthern Ireland weather in
MarchNorthern Ireland weather in
AprilNorthern Ireland weather in
MayNorthern Ireland weather in
JuneNorthern Ireland weather in
JulyNorthern Ireland weather in
AugustNorthern Ireland weather in
SeptemberNorthern Ireland weather in
OctoberNorthern Ireland weather in
NovemberNorthern Ireland weather in
December