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.