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The weather in January in Donegal

It's cold in January in Donegal with an average temperature of 9°C. Temperatures this month range from a low of 7°C to a high of 10°C. At night, you can expect temperatures between 2°C and 6°C.

Looking for sun? January isn’t a good month to be in Donegal. There’s too much chance of rain this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in January for Donegal, Ireland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 14°C in 2016, Donegal reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 1°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of -5°C to a highest value of 12°C.

Precipitation and snowfall

In January, there is an average of 114 mm of precipitation, spread over 14 days. Of the total precipitation, about 2,7 cm falls as snow in January. The wind speed is around 5 Bft, mostly coming from the Southwest.

Daily weather in January for Donegal

Click on any day in January to get detailed info about the usual weather on that day in Donegal. Check out the historical temperatures and precipitation over the past 10 years on this day.

January weather comparison

  Donegal New York
Average temperature 9°C 5°C
Max. temperature 10°C 11°C
Min. temperature 2°C -5°C
Total precipitation 114 mm 97 mm
Rainy days 14 days 12 days
Total snowfall 2,7 cm 16 cm
Snowy days 1 day 8 days

Start of January

The month of January starts in Donegal with cold temps, averaging around 9°C during the day and nights around 4°C.

Mid January

By mid-January, daytime temps drop to around 8°C, with nights around 3°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of January

By the end of January, the average daytime temperature in Donegal is around 9°C, while nighttime temps are about 5°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Find affordable trips to Donegal

UV index

The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.

Check out the climate of Donegal for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in January in Donegal, Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in January in Donegal

Temperature in January in Donegal over the years

Precipitation charts

These charts show the average amount of precipitation in January in Donegal, Ireland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in January in Donegal

Total precipitation in January in Donegal over the years

Daily Snowfall in January in Donegal

Snowfall in January in Donegal per year

Daily UV index in January in Donegal

This chart shows the average daily UV index in January in Donegal, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in January in Donegal

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Average weather in Donegal by month

Click on a month below to see detailed weather info for Donegal. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.