Louth County Weather in December

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

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Dundalk Carlingford Drogheda

Thinking about venturing to Louth County, Ireland this December and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Louth County in December

Louth County, Ireland is a region in Ireland. December in Louth County generally has cold temperatures, with moderate precipitation. December falls during the winter season.

Temperatures

You can expect cold maximum daytime temperatures of around 9°C (48°F) and nighttime temperatures around 4°C (39°F) in Dundalk.

To explore the conditions in Louth County, Ireland in more detail, check the map below.

Precipitation

In December, precipitation varies across different areas. From moderate rainfall in Drogheda with an average of 77 mm (3 in) to moderate rainfall in Carlingford with 88 mm (3.5 in).

Average sunshine

Sunshine is more restricted in many locations in December. Dundalk sees roughly 51 hours of sunlight. Our weather planner can help you find destinations with more sunshine if needed.

Explore Louth County by month

Pick a month to see the average temperature, rainfall and sunshine in Louth County — and find the best time to visit. (based on Dundalk)

January9°C (48°F) February9°C (48°F) March11°C (52°F) April13°C (55°F) May16°C (61°F) June18°C (64°F) This monthJuly20°C (68°F) August19°C (66°F) September18°C (64°F) October14°C (57°F) November11°C (52°F) December9°C (48°F)
Best Time to Visit Louth County →

Best Places to Visit in Louth County in December

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

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

Temperature range in Louth County (December)

Precipitation variation in Louth County (December)

Dundalk

In December Dundalk generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are poor 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
71 hours
51 hours
56 hours
Monthly rainfall
88 mm (3.5 in)
81 mm (3.2 in)
77 mm (3 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions
unpleasant
poor
poor
Climate in Dundalk →

Carlingford

In December Carlingford generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are poor 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
71 hours
51 hours
56 hours
Monthly rainfall
97 mm (3.8 in)
88 mm (3.5 in)
83 mm (3.3 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions
unpleasant
poor
poor
Climate in Carlingford →

Drogheda

In December Drogheda generally has low temperatures with maximum daytime temperatures around 10°C (50°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
10°C (50°F)
9°C (48°F)
Min temperature
6°C (43°F)
4°C (39°F)
4°C (39°F)
Monthly sun hours
71 hours
51 hours
56 hours
Monthly rainfall
84 mm (3.3 in)
77 mm (3 in)
71 mm (2.8 in)
Monthly rainy days
17 days
18 days
19 days
Weather conditions
unpleasant
poor
poor
Climate in Drogheda →

Is your destination not in the list? Have a look at all destinations in Louth 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 Louth County in December.

City Weather Day temp Night temp Rainfall
Dundalk 9°C (48°F) 4°C (39°F) 81 mm (3.2 in)
Carlingford 9°C (48°F) 4°C (39°F) 88 mm (3.5 in)
Drogheda 10°C (50°F) 4°C (39°F) 77 mm (3 in)

Louth County weather in December: frequently asked questions

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

December in Louth County, Ireland brings poor weather. In Dundalk, daytime temperatures are typically around 9°C (48°F) and nighttime lows hover near 4°C (39°F).

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

Dundalk averages a daytime maximum of 9°C (48°F) in December, with overnight lows close to 4°C (39°F).

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

Not particularly. Dundalk averages just 81 mm (3.2 in) of rain in December, making it a mostly dry month for Louth County, Ireland.

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

Given the typically poor weather conditions in Dundalk, December may not be the ideal time to visit Louth County, Ireland.

Generally speaking, July provides perfect weather in Dundalk. The weather in January, February and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Louth 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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