Llandeilo Weather in December

Thinking of visiting Llandeilo in December? Expect low temperatures reaching 9°C (48°F) during the day, dropping to 3°C (37°F) at night, and be prepared for the wettest month of the year.

Rainfall in Llandeilo in December

As the rainiest month, carrying an umbrella is advisable to manage the frequent rain. You can typically expect 20 days of rain this month, averaging around 142 mm (5.6 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Llandeilo in December

Daytime highs in Llandeilo in December reach 9°C (48°F), with nights around 3°C (37°F). The winter season is characteristic of December. It stays cool throughout the day, so warm layers are a good idea from morning to evening. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Llandeilo in December

The city usually sees around 49 hours of sunlight, indicating fewer sunny days.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Llandeilo. Our weather planner can help you explore destinations with more pleasant weather conditions.