Killarney Weather in December

With daytime temperatures of 29°C (84°F) and nighttime lows of 16°C (61°F), December in Killarney brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Killarney in December

Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. On average, there are about 13 days with rain during this month, averaging 114 mm (4.5 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Killarney in December

Daytime temperatures in Killarney reach 29°C (84°F) in December, dropping to 16°C (61°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 16°C (61°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

December in Killarney has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.