Ulster (Donegal)
January
Weather in Ulster for January 2026
Your guide to Ulster weather in January - trends and predictions
Ulster typically experiences moderate snowfall in January, with an average of 6 snowy days.
In general, the average temperature in Ulster at the beginning of January is 5.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 7.4 °C by the end of January.
Snow Forecast ❄️
Temperatures
11
Dry days
14
Rainy days
6
Snow days
6°/2°
Temperatures
24 km/h
Avg max wind
85 %
Avg humidity
Ulster Weather January
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  6° | 2 6° | 3  7° | 4 5° | |||
| 5 5° | 6 5° | 7  4° | 8 3° | 9 3° | 10  3° | 11  4° |
| 12 6° | 13 9° | 14 8° | 15  7° | 16 6° | 17  5° | 18 6° |
| 19  6° | 20 8° | 21 9° | 22 7° | 23 9° | 24 8° | 25 7° |
| 26 6° | 27 7° | 28 10° | 29  6° | 30 7° | 31  9° |
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Temperatures trend during January in Ulster
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Jan. | Light rain shower | 6° /1° | 10.4 mm | 0.2 cm | |
| 2 Jan. | Patchy rain possible | 6° /2° | 0.9 mm | 0 cm | |
| 3 Jan. | Light drizzle | 7° /3° | 2.3 mm | 0 cm | |
| 4 Jan. | Light rain shower | 5° /1° | 2.9 mm | 0.1 cm | |
| 5 Jan. | Light rain shower | 5° /1° | 2.1 mm | 0.8 cm | |
| 6 Jan. | Patchy rain possible | 5° /0° | 0.7 mm | 0 cm | |
| 7 Jan. | Sunny | 4° /-1° | 0.7 mm | 0.4 cm | |
| 8 Jan. | Patchy rain possible | 3° /-1° | 0 mm | 0 cm | |
| 9 Jan. | Sunny | 3° /-2° | 0.8 mm | 0.5 cm | |
| 10 Jan. | Mist | 3° /-2° | 0.5 mm | 0.1 cm | |
| 11 Jan. | Partly cloudy | 4° /0° | 1.6 mm | 0 cm | |
| 12 Jan. | Sunny | 6° /-1° | 0 mm | 0 cm | |
| 13 Jan. | Fog | 9° /6° | 2 mm | 0 cm | |
| 14 Jan. | Patchy rain possible | 8° /4° | 0.4 mm | 0.1 cm | |
| 15 Jan. | Light snow showers | 7° /3° | 0.4 mm | 0.4 cm | |
| 16 Jan. | Light snow showers | 6° /1° | 3.3 mm | 0.5 cm | |
| 17 Jan. | Moderate or heavy snow showers | 5° /2° | 1.2 mm | 0.9 cm | |
| 18 Jan. | Moderate or heavy snow showers | 6° /1° | 0.9 mm | 0.8 cm | |
| 19 Jan. | Light freezing rain | 6° /2° | 0.3 mm | 0.1 cm | |
| 20 Jan. | Light rain | 8° /3° | 1.8 mm | 0 cm | |
| 21 Jan. | Light rain shower | 9° /2° | 9.8 mm | 0 cm | |
| 22 Jan. | Light rain shower | 7° /2° | 3.7 mm | 0 cm | |
| 23 Jan. | Light rain shower | 9° /2° | 14.9 mm | 0.2 cm | |
| 24 Jan. | Light rain shower | 8° /2° | 14.2 mm | 3.8 cm | |
| 25 Jan. | Light rain shower | 7° /1° | 10.9 mm | 2.2 cm | |
| 26 Jan. | Patchy rain possible | 6° /0° | 4.3 mm | 0 cm | |
| 27 Jan. | Patchy rain possible | 7° /5° | 0.5 mm | 0 cm | |
| 28 Jan. | Light rain shower | 10° /3° | 1.7 mm | 0 cm | |
| 29 Jan. | Cloudy | 6° /1° | 0.2 mm | 0 cm | |
| 30 Jan. | Light freezing rain | 7° /0° | 4.8 mm | 0 cm | |
| 31 Jan. | Moderate rain | 9° /3° | 6.8 mm | 0 cm | |
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Important Notice
Our weather forecast for Ulster 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 Ulster forecast closer to your planned date for the most up-to-date weather information.
Ulster in January - FAQ
What are the expected maximum and minimum temperatures in Ulster during January?
Prepare for cooler days with highs just around 6° and colder nights, dipping below 2°.
How much rainfall should be expected in Ulster during January?
Significant rainfall exceeding 127.2 mm is expected in Ulster during January, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Ulster in January 2026?
Ulster experiences an average snowfall of 5.45 cm during January, occurring over 6 days.
What are the typical wind conditions in Ulster during January?
The average wind speed in Ulster during January is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
Ulster snow forecast January 2026
Track daily snowfall levels and discover Ulster’s snowy potential this January ❄️
January rainfall patterns in Ulster
Explore the daily rainfall trends and prepare for Ulsters January weather 💧
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