Donegal
December
Weather in Donegal for December 2026
Your guide to Donegal weather in December - trends and predictions
In general, the average temperature in Donegal at the beginning of December is 7.2 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 7 °C by the end of December.
Donegal experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 170.3 mm.
Is December a good time to visit Donegal? check out the best time to travel to Donegal page.
Temperatures
Rain 🌧️
More
10
Dry days
21
Rainy days
0
Snow days
8°/4°
Temperatures
26 km/h
Avg max wind
87 %
Avg humidity
Donegal Weather December
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Temperatures trend during December in Donegal
See the weather trend as well as the moving average line
December weather in Donegal day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Light freezing rain | 8° /3° | 2.3 mm | 0 cm | |
| 2 Dec. |  Patchy rain possible | 5° /1° | 1.8 mm | 0 cm | |
| 3 Dec. |  Light rain | 6° /1° | 4.1 mm | 0 cm | |
| 4 Dec. | Light rain | 6° /1° | 3.4 mm | 0 cm | |
| 5 Dec. | Light rain | 7° /2° | 7.9 mm | 0 cm | |
| 6 Dec. |  Moderate rain | 9° /3° | 16.3 mm | 0 cm | |
| 7 Dec. | Moderate rain | 9° /5° | 18.8 mm | 0 cm | |
| 8 Dec. | Light rain | 8° /4° | 6.2 mm | 0 cm | |
| 9 Dec. | Light rain | 9° /4° | 8 mm | 0 cm | |
| 10 Dec. | Light rain | 7° /4° | 4.6 mm | 0 cm | |
| 11 Dec. | Moderate rain | 7° /3° | 5.1 mm | 0 cm | |
| 12 Dec. | Light drizzle | 6° /2° | 2.4 mm | 0 cm | |
| 13 Dec. | Patchy rain possible | 7° /2° | 1.8 mm | 0 cm | |
| 14 Dec. | Light rain | 10° /5° | 7.9 mm | 0 cm | |
| 15 Dec. | Patchy rain possible | 10° /6° | 0.3 mm | 0 cm | |
| 16 Dec. | Patchy rain possible | 9° /6° | 0.4 mm | 0 cm | |
| 17 Dec. | Light rain | 11° /7° | 9 mm | 0 cm | |
| 18 Dec. | Light rain | 10° /5° | 7.1 mm | 0 cm | |
| 19 Dec. | Light rain | 7° /5° | 4.2 mm | 0 cm | |
| 20 Dec. | Light rain | 9° /5° | 4.4 mm | 0 cm | |
| 21 Dec. | Light rain | 9° /6° | 8.1 mm | 0 cm | |
| 22 Dec. | Light rain | 7° /5° | 4.2 mm | 0.1 cm | |
| 23 Dec. | Moderate rain | 10° /6° | 8.6 mm | 0 cm | |
| 24 Dec. | Light rain shower | 10° /6° | 1.7 mm | 0 cm | |
| 25 Dec. | Light rain shower | 7° /4° | 1.7 mm | 0 cm | |
| 26 Dec. | Patchy rain possible | 6° /3° | 1.6 mm | 0 cm | |
| 27 Dec. | Light rain | 9° /4° | 8.2 mm | 0 cm | |
| 28 Dec. | Light rain | 6° /4° | 5 mm | 0 cm | |
| 29 Dec. | Light rain shower | 7° /2° | 1.8 mm | 0 cm | |
| 30 Dec. |  Moderate or heavy sleet | 7° /3° | 5.8 mm | 0 cm | |
| 31 Dec. |  Moderate or heavy rain with thunder | 7° /3° | 7.4 mm | 0 cm | |
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Important Notice
Our weather forecast for Donegal in December 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 Donegal forecast closer to your planned date for the most up-to-date weather information.
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Donegal in December - FAQ
What are the expected maximum and minimum temperatures in Donegal during December?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 4°.
How much rainfall should be expected in Donegal during December?
Significant rainfall exceeding 170.3 mm is expected in Donegal during December, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Donegal in December 2026?
Donegal typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Donegal during December?
The average wind speed in Donegal during December is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
Donegal snow forecast December 2026
Track daily snowfall levels and discover Donegal’s snowy potential this December ❄️
December rainfall patterns in Donegal
Explore the daily rainfall trends and prepare for Donegals December weather 💧
Typically, Donegal has 21 rainy days in December with a total of 170.3 mm of rainfall.
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