Killarney Weather in December

December in Killarney brings low temperatures, with highs of 10°C (50°F) and nights dropping to 4°C (39°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Killarney in December

The month brings the most rain, so be prepared with an umbrella for the occasional shower. Typically, about 23 days will experience rainfall, with an average of 128 mm (5 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Killarney in December

In December, Killarney gets low temperatures, with highs of 10°C (50°F). Nights cool to around 4°C (39°F). The winter season is characteristic of December. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Killarney in December

The month is characterized by fewer sunny days, with roughly 40 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.

December in Killarney has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.