Swords Weather in December
Thinking of visiting Swords in December? Expect low temperatures reaching 10°C (50°F) during the day, dropping to 5°C (41°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Swords in December
On average, there are about 17 days with rain during this month, averaging 79 mm (3.1 in). Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Swords in December
December in Swords sees highs of 10°C (50°F) and lows of 5°C (41°F) overnight. December is known for being in the winter season. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Swords in December
The month is characterized by fewer sunny days, with roughly 51 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.
Wind Speed in Swords 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
With water temperatures around 11°C (52°F), swimming isn't really an option for most visitors. The cold sets in quickly and a wetsuit won't fully solve it.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Swords. 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 Swords's climate page.
Swords Temperature in December
Min Temperature
5°C (41°F)
Max Temperature
10°C (50°F)
Water Temperature
11°C (52°F) *
Chance of Rain
57%
Precipitation
79 mm (3.1 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 Swords 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 Swords in December
Browse day-by-day weather records for Swords spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Swords historical weather extremes in December
Based on 49 years of weather observations in Swords between 1976 and 2025, these are the recorded extremes.
- Swords recorded its highest December temperature of 16°C (61°F) on December 9, 2025.
- Swords experienced its chilliest December day on December 24, 2010, reaching only -5°C (23°F).
- The lowest overnight temperature recorded in December was -11°C (12°F) (December 25, 2010).
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 Swords in December
We recommend to layer up for chilly conditions in Swords 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. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Swords 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 Swords's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Swords climate overview or explore weather in Ireland.
