Llanarthney Weather in December

December in Llanarthney brings low temperatures, with daytime highs of 9°C (48°F) and nights around 4°C (39°F). It's also the wettest month of the year, so an umbrella is a must.

Rainfall in Llanarthney in December

During the wettest month of the year, an umbrella can be your best friend to stay dry. This month experiences about 20 days of rain according to historical data, averaging 142 mm (5.6 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Llanarthney in December

Expect highs of 9°C (48°F) in Llanarthney in December, with nights dropping to around 4°C (39°F). December is typically considered a winter month. It stays cool throughout the day, so warm layers are a good idea from morning to evening. 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 Llanarthney in December

The month has fewer sunny days, with around 49 hours of sunshine.

December in Llanarthney can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options 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 Llanarthney's climate page.

Llanarthney Temperature in December

Min Temperature 4°C (39°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 66%  

Precipitation 142 mm (5.6 in)  

Rainy days 20 days  

Humidity 89% *  

Sunshine 49 hours *  

Percentage Sunshine 19% *  

* Data from: Cardiff, the United Kingdom (73 KM, 45 Miles).

What to Wear in Llanarthney in December

Dress warmly and in layers for your trip to Llanarthney in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Llanarthney 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

3/10

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 Llanarthney's climate page.

More climate data for Llanarthney

Temperature Rainfall Sunshine Humidity

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