Donegal County Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Donegal County, Ireland in December.

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Bundoran Donegal Letterkenny Buncrana

Considering a trip to Donegal County, Ireland this December and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Donegal County in December

Donegal County, Ireland is a region in Ireland. December in Donegal County generally has cold temperatures, with precipitation levels ranging from moderate to heavy. The month of December is in the winter season.

Temperatures

You can expect cold maximum daytime temperatures of around 9°C (48°F) and nighttime temperatures around 3°C (37°F) in Bundoran.

For a closer look at conditions across Donegal County, Ireland, refer to the map below.

Precipitation

In December, precipitation varies across different areas. From moderate rainfall in Derry with an average of 99 mm (3.9 in) to heavy rainfall in Kincasslagh with 197 mm (7.8 in). Based on climate data from the last 30 years, Bundoran receives the most rainfall during this month of the year.

Explore Donegal County by month

Pick a month to see the average temperature, rainfall and sunshine in Donegal County - and find the best time to visit. (based on Bundoran)

January9°C (48°F) February9°C (48°F) March11°C (52°F) April13°C (55°F) May16°C (61°F) June18°C (64°F) July19°C (66°F) This monthAugust19°C (66°F) September17°C (63°F) October14°C (57°F) November11°C (52°F) December9°C (48°F)
Best Time to Visit Donegal County →

Best Places to Visit in Donegal County in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Donegal County.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Donegal County

What is the weather like in December for some of the most popular destinations in Donegal County, Ireland?

Temperature range in Donegal County (December)

Precipitation variation in Donegal County (December)

Bundoran

In December Bundoran generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and high monthly rainfall. So on average the conditions are less favorable that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
9°C (48°F)
9°C (48°F)
Min temperature
5°C (41°F)
3°C (37°F)
3°C (37°F)
Monthly rainfall
126 mm (5 in)
131 mm (5.2 in)
125 mm (4.9 in)
Monthly rainy days
23 days
23 days
24 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Bundoran →

Donegal

In December Donegal generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and high monthly rainfall. So on average the conditions are less favorable that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
9°C (48°F)
8°C (46°F)
Min temperature
5°C (41°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
58 hours
39 hours
50 hours
Monthly rainfall
128 mm (5 in)
132 mm (5.2 in)
127 mm (5 in)
Monthly rainy days
23 days
24 days
24 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Donegal →

Letterkenny

In December Letterkenny generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and high monthly rainfall. So on average the conditions are less favorable that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
9°C (48°F)
9°C (48°F)
Min temperature
5°C (41°F)
4°C (39°F)
3°C (37°F)
Monthly sun hours
58 hours
39 hours
50 hours
Monthly rainfall
117 mm (4.6 in)
119 mm (4.7 in)
115 mm (4.5 in)
Monthly rainy days
23 days
24 days
24 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Letterkenny →

Buncrana

In December Buncrana generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and high monthly rainfall. So on average the conditions are less favorable that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
9°C (48°F)
9°C (48°F)
Min temperature
6°C (43°F)
4°C (39°F)
4°C (39°F)
Monthly sun hours
58 hours
39 hours
50 hours
Monthly rainfall
107 mm (4.2 in)
109 mm (4.3 in)
104 mm (4.1 in)
Monthly rainy days
23 days
23 days
23 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Buncrana →

Moville

In December Moville generally has low temperatures with maximum daytime temperatures around 10°C (50°F), minimum nighttime temperatures around 5°C (41°F) and high monthly rainfall. So on average the conditions are less favorable that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
10°C (50°F)
9°C (48°F)
Min temperature
7°C (45°F)
5°C (41°F)
5°C (41°F)
Monthly sun hours
58 hours
39 hours
50 hours
Monthly rainfall
142 mm (5.6 in)
141 mm (5.6 in)
126 mm (5 in)
Monthly rainy days
22 days
23 days
23 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Moville →

Is your destination not in the list? Have a look at all destinations in Donegal County, in Ireland.

In our records: Ireland December extremes

Notable December records observed across cities in Ireland in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest December night in Ireland dropped to -16°C (3°F) in Donegal on December 23, 2010.
  • In our records, the coldest December daytime high in Ireland was -7°C (19°F) in Lurgan on December 21, 2010.

Popular cities in December

Day & night temperatures, rainfall and average weather in Donegal County in December.

City Weather Day temp Night temp Rainfall
Bundoran 9°C (48°F) 3°C (37°F) 131 mm (5.2 in)
Donegal 9°C (48°F) 3°C (37°F) 132 mm (5.2 in)
Letterkenny 9°C (48°F) 4°C (39°F) 119 mm (4.7 in)
Buncrana 9°C (48°F) 4°C (39°F) 109 mm (4.3 in)
Moville 10°C (50°F) 5°C (41°F) 141 mm (5.6 in)
Ballyliffin 10°C (50°F) 5°C (41°F) 126 mm (5 in)

Donegal County weather in December: frequently asked questions

What is the weather like in Donegal County, Ireland in December?

In December, Donegal County, Ireland generally has less favorable weather conditions. Bundoran sees daytime temperatures near 9°C (48°F), with nights cooling to roughly 3°C (37°F).

What is the average temperature in Donegal County, Ireland in December?

In Bundoran, the average daytime high in December is 9°C (48°F), while nighttime temperatures drop to around 3°C (37°F).

Does Donegal County, Ireland get a lot of rain in December?

Donegal County, Ireland sees substantial rainfall in December. Bundoran typically averages about 131 mm (5.2 in), a mix of wet and dry days, but bring an umbrella.

Is December a Good Time to Visit Donegal County, Ireland?

In our view, December might not be the best time to travel to Donegal County, Ireland with often less favorable weather in Bundoran.

Generally speaking, the best visiting conditions can be found in June, July and August offering mostly good weather in Bundoran. On the other hand, the weather in January, February, March, November and December tend to be less favorable.

Interested in more climate information?

We have much more information about the climate in Donegal County.

Weather and climate has detailed information for every country in the world. Are you going to Ireland? Get detailed historical weather averages for many cities in Ireland.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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