Antrim Weather in December

December in Antrim brings low temperatures, with daytime highs of 9°C (48°F) and nights around 3°C (37°F). Quite a bit of rainfall is expected, around 83 mm (3.3 in), so pack an umbrella.

Rainfall in Antrim in December

This month experiences about 21 days of rain according to historical data, averaging 83 mm (3.3 in). Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Antrim in December

Antrim in December gets highs of 9°C (48°F) during the day and drops to 3°C (37°F) at night. Winter occurs in December. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. Nights drop to 3°C (37°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Antrim in December

With limited sunshine this month, there are about 39 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

Wind Speed in Antrim in December

December has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.

Average water temperature in December

With water temperatures around 10°C (50°F), swimming isn't really an option for most visitors. The cold sets in quickly and a wetsuit won't fully solve it.

December in Antrim 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.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Antrim's climate page.

Antrim Temperature in December

Min Temperature 3°C (37°F)  

Max Temperature 9°C (48°F)  

Water Temperature 10°C (50°F) *  

Chance of Rain 70%  

Precipitation 83 mm (3.3 in)  

Rainy days 21 days  

Humidity 90% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 39 hours *  

Percentage Sunshine 15% *  

* Data from: Belfast, Ireland (6 KM, 4 Miles).

What to Wear in Antrim in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 10°C (50°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Antrim in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

4/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Antrim's climate page.

More climate data for Antrim

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Antrim climate overview or explore weather in the United Kingdom.