Clifden Weather in December
December in Clifden sees daytime temperatures around 10°C (50°F) and lows of 6°C (43°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.
Rainfall in Clifden in December
The month brings the heaviest rain of the year, often in intense bursts. Make sure to have a poncho to stay dry during the showers. Rain is expected on roughly 24 days, totalling around 158 mm (6.2 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Clifden in December
Daytime temperatures in Clifden reach 10°C (50°F) in December, dropping to 6°C (43°F) at night. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Clifden in December
The city usually sees around 35 hours of sunlight, indicating fewer sunny days.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Clifden. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Clifden's climate page.
Clifden Temperature in December
Min Temperature
6°C (43°F)
Max Temperature
10°C (50°F)
Chance of Rain
80%
Precipitation
158 mm (6.2 in)
Rainy days
24 days
Humidity
90% *
Sunshine
35 hours *
Percentage Sunshine
17% *
Daily Historical Temperatures
47-year average (1976-2025)
Based on our historical records, temperatures in Clifden typically stay consistent throughout December, with daily highs averaging around 10°C (50°F). Nights are cold, with lows around 4°C (39°F).
Average temperatures in December
Daily Historical Precipitation
47-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Clifden in December
Browse day-by-day weather records for Clifden spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Clifden historical weather extremes in December
According to our 26 years of weather records for Clifden, the following extremes were recorded between 1999 and 2025.
- On December 9, 2025, temperatures climbed to 15°C (59°F), marking the warmest December day on record.
- The lowest daytime temperature in December was -4°C (25°F), recorded on December 30, 2000.
- The wettest day in December Clifden was on December 3, 2006 with 34 mm (1.3 in) of precipitation.
Best Places in Ireland in December
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in December →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Clifden in December
Pack for changing conditions in Clifden in December. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Clifden in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Clifden's climate page.
Temperature Rainfall Sunshine Humidity
See the full Clifden climate overview or explore weather in Ireland.
