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.

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• January
• February
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• May
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• December

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

Twyn Llanan Temperature in December

Min Temperature 3°C (37°F)  

Max Temperature 8°C (46°F)  

Chance of Rain 69%  

Precipitation 146 mm (5.7 in)  

Rainy days 21 days  

Humidity 89% *  

Sunshine 49 hours *  

Percentage Sunshine 19% *  

* Data from: Cardiff, the United Kingdom (64 KM, 39 Miles).

What to Wear in Twyn Llanan 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. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Twyn Llanan 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 Twyn Llanan's climate page.

More climate data for Twyn Llanan

Temperature Rainfall Sunshine Humidity

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