Ulster (Donegal)
January
Weather in Ulster for January 2026
Your guide to Ulster weather in January - trends and predictions
Yellow Rain Warning - See hour by hour.
The climate of Ulster in January is quite snowy, averaging 12 snowy days.
According to Ulster snow forecast for January 2026, no snow is expected until the end of the month.Until now, January 2026 in Ulster has been nearly identical to the historical average, with a temperature of 5.7 °C (showing only a slight deviation of -0.5 °C).
Expect cooler weather in the next days in Ulster with the forecast suggesting a temperature of 5.9 °C, lower than the historical average.
In general, the average temperature in Ulster at the beginning of January is 5.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 7 °C by the end of January.
Official Weather Alert ⚠️
Snow Forecast ❄️
Temperatures
8
Dry days
11
Rainy days
12
Snow days
6°/2°
Temperatures
22 km/h
Avg max wind
85 %
Avg humidity
Ulster Weather January
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What’s the Weather Like in Ulster This January?
Discover the average temperatures and weather trends across Ulster’s cities this January.
Temperatures trend during January in Ulster
See the weather trend as well as the moving average line
January weather in Ulster day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Jan. |  Light rain shower | 6° /1° | 7.7 mm | 0.2 cm | |
| 2 Jan. | Patchy rain possible | 5° /1° | 1.1 mm | 0.3 cm | |
| 3 Jan. |  Light drizzle | 6° /2° | 1.9 mm | 0.3 cm | |
| 4 Jan. | Light rain shower | 5° /0° | 3.6 mm | 0.6 cm | |
| 5 Jan. | Light rain shower | 4° /0° | 1.6 mm | 0.6 cm | |
| 6 Jan. | Patchy rain possible | 6° /0° | 1.7 mm | 0 cm | |
| 7 Jan. |  Sunny | 4° /-1° | 1.1 mm | 0.3 cm | |
| 8 Jan. | Patchy rain possible | 4° /0° | 0.5 mm | 0 cm | |
| 9 Jan. | Sunny | 4° /-2° | 2.4 mm | 0.3 cm | |
| 10 Jan. |  Mist | 4° /-1° | 2 mm | 0 cm | |
| 11 Jan. |  Partly cloudy | 7° /2° | 4.3 mm | 0 cm | |
| 12 Jan. | Sunny | 7° /0° | 0.8 mm | 0 cm | |
| 13 Jan. | Fog | 8° /4° | 3.4 mm | 0 cm | |
| 14 Jan. | Patchy rain possible | 7° /2° | 2.7 mm | 0.1 cm | |
| 15 Jan. |  Light snow showers | 6° /2° | 0.9 mm | 0.2 cm | |
| 16 Jan. | Mist | 5° /0° | 2.2 mm | 0.3 cm | |
| 17 Jan. |  Moderate or heavy snow showers | 6° /1° | 0.8 mm | 0.6 cm | |
| 18 Jan. | Moderate or heavy snow showers | 6° /1° | 0.9 mm | 0.8 cm | |
| 19 Jan. |  Light freezing rain | 6° /1° | 4.2 mm | 0.1 cm | |
| 20 Jan. | Patchy rain possible | 8° /2° | 1.4 mm | 0 cm | |
| 21 Jan. | Light rain shower | 9° /1° | 6.8 mm | 0 cm | |
| 22 Jan. | Light rain shower | 8° /3° | 3.8 mm | 0 cm | |
| 23 Jan. | Light rain shower | 8° /3° | 11.3 mm | 0.1 cm | |
| 24 Jan. | Light rain shower | 7° /2° | 11 mm | 2.5 cm | |
| 25 Jan. | Light rain shower | 7° /1° | 8.3 mm | 1.5 cm | |
| 26 Jan. |  Moderate rain | 6° /0° | 7.1 mm | 0 cm | |
| 27 Jan. | Patchy rain possible | 7° /4° | 4.9 mm | 0 cm | |
| 28 Jan. | Light rain shower | 9° /2° | 1.1 mm | 0 cm | |
| 29 Jan. |  Cloudy | 6° /1° | 0.2 mm | 0 cm | |
| 30 Jan. | Patchy rain possible | 7° /4° | 4.5 mm | 0 cm | |
| 31 Jan. | Patchy rain possible | 7° /4° | 0.3 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.
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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 104.9 mm is expected in Ulster during January, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Ulster in January 2026?
Ulster experiences an average snowfall of 10.995 cm during January, occurring over 12 days.
What are the typical wind conditions in Ulster during January?
The average wind speed in Ulster during January is 22 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 ❄️
On average, Ulster sees 12 snowy days during January, with approximately 11 cm of total snowfall.
January rainfall patterns in Ulster
Explore the daily rainfall trends and prepare for Ulsters January weather 💧
Typically, Ulster has 11 rainy days in January with a total of 104.9 mm of rainfall.
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