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Weather in County Donegal for January 2026

Your guide to County Donegal weather in January - trends and predictions

    Official Weather Alert ⚠️

  • Yellow Rain Warning - See hour by hour.

  • Snow Forecast ❄️

  • The climate of County Donegal in January is quite snowy, averaging 12 snowy days.
    According to County Donegal snow forecast for January 2026, no snow is expected until the end of the month.

  • Temperatures

  • Until now, January 2026 in County Donegal 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 County Donegal with the forecast suggesting a temperature of 5.9 °C, lower than the historical average.

  • In general, the average temperature in County Donegal 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.

Average dry days
8
Dry days
Average rainy days
11
Rainy days
Average snowy days
12
Snow days
Average temperatures
6°/2°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
85 %
Avg humidity

County Donegal Weather January

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Temperatures trend during January in County Donegal

See the weather trend as well as the moving average line

January weather in County Donegal day by day

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Date Weather Temperatures Rain Snow More
1 Jan. Light rain shower
Light rain shower
6° /1° 7.7 mm 0.2 cm
2 Jan. Patchy rain possible
Patchy rain possible
5° /1° 1.1 mm 0.3 cm
3 Jan. Light drizzle
Light drizzle
6° /2° 1.9 mm 0.3 cm
4 Jan. Light rain shower
Light rain shower
5° /0° 3.6 mm 0.6 cm
5 Jan. Light rain shower
Light rain shower
4° /0° 1.6 mm 0.6 cm
6 Jan. Patchy rain possible
Patchy rain possible
6° /0° 1.7 mm 0 cm
7 Jan. Sunny
Sunny
4° /-1° 1.1 mm 0.3 cm
8 Jan. Patchy rain possible
Patchy rain possible
4° /0° 0.5 mm 0 cm
9 Jan. Sunny
Sunny
4° /-2° 2.4 mm 0.3 cm
10 Jan. Mist
Mist
4° /-1° 2 mm 0 cm
11 Jan. Partly cloudy
Partly cloudy
7° /2° 4.3 mm 0 cm
12 Jan. Sunny
Sunny
7° /0° 0.8 mm 0 cm
13 Jan. Fog
Fog
8° /4° 3.4 mm 0 cm
14 Jan. Patchy rain possible
Patchy rain possible
7° /2° 2.7 mm 0.1 cm
15 Jan. Light snow showers
Light snow showers
6° /2° 0.9 mm 0.2 cm
16 Jan. Mist
Mist
5° /0° 2.2 mm 0.3 cm
17 Jan. Moderate or heavy snow showers
Moderate or heavy snow showers
6° /1° 0.8 mm 0.6 cm
18 Jan. Moderate or heavy snow showers
Moderate or heavy snow showers
6° /1° 0.9 mm 0.8 cm
19 Jan. Light freezing rain
Light freezing rain
6° /1° 4.2 mm 0.1 cm
20 Jan. Patchy rain possible
Patchy rain possible
8° /2° 1.4 mm 0 cm
21 Jan. Light rain shower
Light rain shower
9° /1° 6.8 mm 0 cm
22 Jan. Light rain shower
Light rain shower
8° /3° 3.8 mm 0 cm
23 Jan. Light rain shower
Light rain shower
8° /3° 11.3 mm 0.1 cm
24 Jan. Light rain shower
Light rain shower
7° /2° 11 mm 2.5 cm
25 Jan. Light rain shower
Light rain shower
7° /1° 8.3 mm 1.5 cm
26 Jan. Moderate rain
Moderate rain
6° /0° 7.1 mm 0 cm
27 Jan. Patchy rain possible
Patchy rain possible
7° /4° 4.9 mm 0 cm
28 Jan. Light rain shower
Light rain shower
9° /2° 1.1 mm 0 cm
29 Jan. Cloudy
Cloudy
6° /1° 0.2 mm 0 cm
30 Jan. Patchy rain possible
Patchy rain possible
7° /4° 4.5 mm 0 cm
31 Jan. Patchy rain possible
Patchy rain possible
7° /4° 0.3 mm 0 cm
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Important Notice
Our weather forecast for County Donegal 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 County Donegal forecast closer to your planned date for the most up-to-date weather information.

County Donegal in January - FAQ

What are the expected maximum and minimum temperatures in County Donegal during January?

Prepare for cooler days with highs just around 6° and colder nights, dipping below 2°.

How much rainfall should be expected in County Donegal during January?

Significant rainfall exceeding 104.9 mm is expected in County Donegal during January, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.

Will it snow in County Donegal in January 2026?

County Donegal experiences an average snowfall of 10.995 cm during January, occurring over 12 days.

What are the typical wind conditions in County Donegal during January?

The average wind speed in County Donegal during January is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

County Donegal snow forecast January 2026

Track daily snowfall levels and discover County Donegal’s snowy potential this January ❄️
On average, County Donegal sees 12 snowy days during January, with approximately 11 cm of total snowfall.

January rainfall patterns in County Donegal

Explore the daily rainfall trends and prepare for County Donegals January weather 💧
Typically, County Donegal has 11 rainy days in January with a total of 104.9 mm of rainfall.
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Location coordinates Where is County Donegal?

Get accurate weather forecasts for County Donegal, located at latitude 54.654 and longitude -8.111. Stay updated with localized weather information tailored for County Donegal.

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