Northern Ireland (Belfast)
January
Weather in Northern Ireland for January 2026
Your guide to Northern Ireland weather in January - trends and predictions
Yellow Ice Warning - See hour by hour.
Until now, January 2026 in Northern Ireland is slightly cooler than the historical average by -1.1 °C.
Expect cooler weather in the next days in Northern Ireland with the forecast suggesting a temperature of 5.4 °C, lower than the historical average.
In general, the average temperature in Northern Ireland at the beginning of January is 5.9 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 7.1 °C by the end of January.
The climate of Northern Ireland in January is notably wet, with an average of 15 rainy days, and a total of 194.7 mm of precipitation.
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16
Dry days
15
Rainy days
0
Snow days
9°/0°
Temperatures
26 km/h
Avg max wind
86 %
Avg humidity
Northern Ireland Weather January
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What’s the Weather Like in Northern Ireland This January?
Discover the average temperatures and weather trends across Northern Ireland’s cities this January.
Temperatures trend during January in Northern Ireland
See the weather trend as well as the moving average line
January weather in Northern Ireland day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Jan. |  Patchy rain possible | 7° /2° | 3.9 mm | 0 cm | |
| 2 Jan. | Patchy rain possible | 5° /1° | 0.9 mm | 0.1 cm | |
| 3 Jan. |  Moderate or heavy rain shower | 7° /2° | 4.8 mm | 0.2 cm | |
| 4 Jan. | Patchy rain possible | 6° /2° | 1.4 mm | 0.7 cm | |
| 5 Jan. |  Heavy rain at times | 5° /1° | 5.9 mm | 1.7 cm | |
| 6 Jan. | Patchy rain possible | 6° /1° | 1.9 mm | 0.3 cm | |
| 7 Jan. | Patchy rain possible | 5° /1° | 1.6 mm | 0 cm | |
| 8 Jan. | Patchy rain possible | 4° /0° | 0.3 mm | 0 cm | |
| 9 Jan. | Patchy rain possible | 4° /0° | 0.4 mm | 0 cm | |
| 10 Jan. | Patchy rain possible | 6° /0° | 4.2 mm | 0 cm | |
| 11 Jan. | Patchy rain possible | 7° /2° | 4.2 mm | 0 cm | |
| 12 Jan. |  Mist | 7° /2° | 1.7 mm | 0 cm | |
| 13 Jan. |  Light drizzle | 8° /3° | 1.4 mm | 0 cm | |
| 14 Jan. | Patchy rain possible | 8° /2° | 1.8 mm | 0 cm | |
| 15 Jan. | Mist | 6° /1° | 1.5 mm | 0 cm | |
| 16 Jan. |  Overcast | 6° /0° | 2.1 mm | 0.1 cm | |
| 17 Jan. | Patchy rain possible | 5° /1° | 1.4 mm | 0.1 cm | |
| 18 Jan. | Patchy rain possible | 6° /0° | 0.4 mm | 0.2 cm | |
| 19 Jan. |  Cloudy | 5° /1° | 0.3 mm | 0 cm | |
| 20 Jan. | Patchy rain possible | 8° /2° | 1.5 mm | 0 cm | |
| 21 Jan. | Patchy rain possible | 8° /2° | 3.5 mm | 0 cm | |
| 22 Jan. | Patchy rain possible | 8° /3° | 3.6 mm | 0 cm | |
| 23 Jan. | Light rain | 9° /3° | 3 mm | 0 cm | |
| 24 Jan. | Patchy rain possible | 9° /3° | 5.6 mm | 0 cm | |
| 25 Jan. | Patchy rain possible | 8° /3° | 3.7 mm | 0 cm | |
| 26 Jan. |  Partly cloudy | 7° /2° | 5.5 mm | 0 cm | |
| 27 Jan. |  Moderate rain | 7° /4° | 18.8 mm | 0 cm | |
| 28 Jan. | Patchy rain possible | 8° /2° | 0.9 mm | 0 cm | |
| 29 Jan. | Patchy rain possible | 6° /5° | 1.7 mm | 0 cm | |
| 30 Jan. | Moderate rain | 7° /5° | 7.3 mm | 0 cm | |
| 31 Jan. | Patchy rain possible | 7° /5° | 3.1 mm | 0 cm | |
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Important Notice
Our weather forecast for Northern Ireland in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Northern Ireland forecast closer to your planned date for the most up-to-date weather information.
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Northern Ireland in January - FAQ
What are the expected maximum and minimum temperatures in Northern Ireland during January?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 0°.
How much rainfall should be expected in Northern Ireland during January?
Significant rainfall exceeding 194.7 mm is expected in Northern Ireland during January, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Northern Ireland in January 2026?
Northern Ireland typically sees 9.5 cm of snowfall during January.
What are the typical wind conditions in Northern Ireland during January?
The average wind speed in Northern Ireland during January is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
Northern Ireland snow forecast January 2026
Track daily snowfall levels and discover Northern Ireland’s snowy potential this January ❄️
January rainfall patterns in Northern Ireland
Explore the daily rainfall trends and prepare for Northern Irelands January weather 💧
Typically, Northern Ireland has 15 rainy days in January with a total of 194.7 mm of rainfall.
Counties in Northern Ireland
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