Dublin Weather in December
Dublin in December sees low temperatures, with highs around 10°C (50°F) and overnight lows of 4°C (39°F). Rainfall is fairly high at around 77 mm (3 in) on average, so pack waterproofs just in case.
Rainfall in Dublin in December
Past climate data indicates that roughly 17 days will see rain, totalling around 77 mm (3 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Dublin in December
In December, Dublin gets low temperatures, with highs of 10°C (50°F). Nights cool to around 4°C (39°F). During December, the winter season is in full swing. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Dublin in December
The area sees fewer sunny days, with a projection of about 51 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.
Wind Speed in Dublin in December
Wind speeds average 6 m/s (12 knots) during December. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.
Average water temperature in December
At 11°C (52°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Dublin. 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 Dublin's climate page.
Dublin Temperature in December
Min Temperature
4°C (39°F)
Max Temperature
10°C (50°F)
Water Temperature
11°C (52°F)
Chance of Rain
57%
Precipitation
77 mm (3 in)
Rainy days
17 days
Humidity
83%
Windspeed
6 m/s (12 knots)
Sunshine
51 hours
Percentage Sunshine
23%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Dublin typically stay consistent throughout December, with daily highs averaging around 10°C (50°F). Nights are cold, with lows around 3°C (37°F).
Average temperatures in December
Daily Historical Precipitation
50-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 Dublin in December
Browse day-by-day weather records for Dublin spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Dublin historical weather extremes in December
Based on weather observations in Dublin between 1976 and 2025, these are the recorded extremes during December.
- The warmest day in December was on December 9, 2025, with a maximum of 16°C (61°F).
- The coldest December day was on December 24, 2010, with a maximum of -5°C (23°F).
- Dublin registered its coldest December night on December 25, 2010, with temperatures dropping to -11°C (12°F).
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
poor
What to Wear in Dublin in December
We recommend to layer up for chilly conditions in Dublin in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket. With water temperatures around 11°C (52°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Dublin 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 Dublin's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Dublin climate overview or explore weather in Ireland.
