Letterkenny weather in December (Donegal County, Ireland)

What can you expect from the weather in Letterkenny during December? This guide provides all the details you need.

In December, Letterkenny generally has low temperatures and high rainfall. December is a winter month. Anticipate daytime temperatures around 9°C, while night temperatures can drop to 4°C.

Letterkenny in December usually receives high rainfall, averaging around 119 mm for the month. With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. When we look at the climate data from the last 30 years, we can expect around 24 days of rain.

The city usually sees around 39 hours of sunlight, indicating fewer sunny days.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Letterkenny. May, July, August and September typically offer the most optimal weather. In contrast, January, February, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Letterkenny climate page with graphs.

 

Letterkenny, monthly averages in December

Min TemperatureMin Temperature 4°C  
Max TemperatureMax Temperature 9°C  
Chance of RainChance of Rain 78%  
PrecipitationPrecipitation 119 mm  
Rainy daysRainy days 24 days  
SunshineSunshine 39 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Derry, Ireland (27 KM, 17 Miles).

Where to go in Ireland in December

Find out more about the weather in Ireland in December and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Letterkenny in December?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in December.

Swimming
4/10
Cycling
4/10
Walking
4/10
Camping
3/10
Outdoor sports
4/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Letterkenny.

Our site offers climate and forecast data for every country in the world. Are you going to Ireland? On this website you can find 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 climate conditions. Find out where to go with our weather planner.