Weather in Ireland in December

December brings a moody charm to Ireland, and the unpredictable weather only adds to that allure. You'll likely encounter freezing winds, frequent rain, and overcast skies, but don't let that stop you. This is the time of year to cozy up in traditional pubs, sipping a creamy pint of Guinness by a hot fireplace, or brave Ireland's dramatic coastal landscapes shrouded in winter mist. Prepare a waterproof raincoat, throw on your outerwear, and get ready to take in the unspoiled beauty of Ireland. Be sure to read all about the weather in Ireland in December.

Ireland in December at a glance

• Average temperatures hover between 39°F and 48°F (4°C to 9°C).
• This is the perfect month to enjoy the holiday spirit, with Christmas markets, twinkling lights, and traditional Irish music creating a festive atmosphere.
• The countryside takes on a rugged beauty, there are fewer tourists and the scenery is moody and atmospheric - perfect for quiet coastal drives or brisk walks.
• The shorter daylight hours give you more reason to retreat to a warm pub and enjoy a hearty Irish stew or whisky tasting by the fireplace.

Is December a good time to visit Ireland?

December is a unique time to visit Ireland, combining wintry charm and holiday cheer. The weather in Ireland in December is cold and often wet, with temperatures ranging from 39°F to 48°F (4°C to 9°C). Rain is frequent, and shorter daylight hours mean you’ll want to plan your activities carefully. Despite the chill, the mild Irish winter rarely sees snow, except in higher altitudes, so travel disruptions are minimal.

It's the heart of winter, but the Ireland weather in December doesn't have to slow you down. Coastal routes like the Wild Atlantic Way take on a dramatic beauty in the mist, while cities like Dublin and Galway light up with Christmas markets, carolers, and twinkling displays. Just pack waterproofs and warm layers to stay comfortable while exploring.

If you’re looking for fewer crowds and an atmospheric twist to Ireland’s rugged landscapes, December is a rewarding time to experience the Emerald Isle.

Rough Guides tip: read all about the best time to visit Ireland.

Average daily temperatures in December

In December, the average daily temperatures in Ireland range from highs of 48°F (9°C) to lows of 39°F (4°C). The weather is cold but relatively mild compared to some other European countries.

Regional differences are subtle but worth noting:

• Eastern regions such as Dublin tend to be a little drier and a little colder, with temperatures sometimes dropping below freezing at night.
• Western coastal areas like Galway and County Kerry are milder because of the Atlantic Ocean, but it rains more often there. Expect maximum temperatures of 46°F to 48°F (8°C to 9°C) and minimum temperatures of 41°F (5°C).
• Northern areas such as Donegal are cooler, with nighttime temperatures often approaching 37°F (3°C) and a higher chance of frost.
• Southern regions, including Cork and Waterford, typically have the warmest weather in December, with daytime highs near 50°F (10°C).
• While snow is rare at lower altitudes, you might see a light dusting in the Wicklow Mountains or other upland areas. Be sure to pack for unpredictable conditions — layering and waterproof gear are key for handling Ireland’s winter weather.

What about the crowd and cost?

December in Ireland is part of the off-peak tourist season, which means fewer crowds at popular attractions. If you prefer a more relaxed travel experience, this is the perfect time to visit. Cities closer to Christmas see a slight uptick in visitors thanks to festive events and markets, but it's a far cry from the summer chaos of high season.

Due to lower demand, accommodation and airfares are usually more affordable in December. You'll also find deals on tours and activities, making this period a budget-friendly option for exploring Ireland's winter charms.

Looking for more options for your vacation in December? Find the perfect vacation destination with our top suggestions.

Things to do in Ireland in December

December in Ireland combines festive cheer with dramatic winter landscapes, offering plenty to explore and enjoy. From cozy pubs to windswept coasts, there’s no shortage of activities to make your trip memorable.

Explore Ireland's Christmas markets

In Dublin, Galway and Cork, festive markets come alive. Here you'll find twinkling lights, handmade crafts and warming treats like mulled wine and mince pies. These markets are perfect for getting into the holiday spirit.

Traveling to Dublin? Don't miss the opportunity to choose the best places to stay in the city.

Take a ride along the coast

Ireland’s rugged coastline is spectacular in December, especially along the Wild Atlantic Way. Though misty and moody, places like the Cliffs of Moher and Connemara are quieter and more atmospheric during winter.

Cozy up in traditional pubs

There's nothing better than a winter evening in a cozy Irish pub. Enjoy live music, hearty Irish stew, and a creamy pint of Guinness by the hot fireplace - the perfect place to escape the cold.

Visit castles and historical sites

December is great for exploring indoor attractions like Kilkenny Castle or the Rock of Cashel. These landmarks offer a mix of history and grandeur, and you’ll find fewer tourists at this time of year.

Go hiking in the Wicklow Mountains

For active travelers, winter hikes in the Wicklow Mountains provide crisp air and frost-tipped landscapes. Just bundle up and prepare for shorter daylight hours — it’s an invigorating way to see Ireland’s natural beauty.

Festivals and events in Ireland in December

December in Ireland is packed with festive events that bring warmth and cheer to the winter season. From dazzling light displays to lively music, there’s something for every traveler to enjoy.

• The Christmas Festival in Dublin: The capital comes alive with events like the Docklands Christmas Market and Christmas at the Castle. Stroll through market stalls, sip on hot chocolate, and admire the festive lights across the city.
• Galway Christmas Market: One of Ireland’s largest holiday markets, Galway’s event is a hub for mulled wine, artisan crafts, and carnival rides. Don’t miss the live music and food vendors showcasing local flavors.
• New Year’s Festival in Dublin: Ring in the new year with a vibrant mix of concerts, light shows, and fireworks. The countdown celebrations around Custom House are a highlight.

Many events and accommodations fill up fast during the holidays, so it’s wise to book ahead to secure your spot in the festive fun.

Plan your trip with our Ireland itineraries

Our Ireland itineraries are crafted to help you experience the best of the country, stress-free. Think of them as a starting point — perfect for planning, but flexible enough to adjust to your own pace and interests. After all, travel is about freedom, but a little planning goes a long way.

• Ireland Itinerary 7 days: Spend a week exploring highlights like Dublin’s historic landmarks, the Cliffs of Moher, and the scenic Ring of Kerry. This itinerary is ideal for a quick dive into Ireland’s cities and natural beauty.
• Ireland Itinerary 10 days: With 10 days, you can cover Dublin, Galway, and Cork, plus add stops like the Dingle Peninsula or the Giant’s Causeway in Northern Ireland for a more in-depth adventure.
• Ireland and Scotland Itinerary: Split your time between Ireland’s rugged west coast and Scotland’s historic cities like Edinburgh and Glasgow, with bonus visits to castles and lochs in the Highlands.