Twyn Llanan Weather in December

December in Twyn Llanan sees daytime temperatures around 8°C (46°F) and lows of 3°C (37°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.

Rainfall in Twyn Llanan in December

During the wettest month of the year, an umbrella can be your best friend to stay dry. Based on our climate data of the past 30 years, about 21 days of rain are anticipated, with 146 mm (5.7 in) on average. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Twyn Llanan in December

In December, Twyn Llanan gets low temperatures, with highs of 8°C (46°F). Nights cool to around 3°C (37°F). December is typically considered a winter month. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. At 3°C (37°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Twyn Llanan in December

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

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Twyn Llanan. Our weather planner can help you explore destinations with more pleasant weather conditions.