Merthyr Tydfil Weather in December

Thinking of visiting Merthyr Tydfil in December? Expect low temperatures reaching 8°C (46°F) during the day, dropping to 2°C (36°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Merthyr Tydfil in December

The climate data from previous years indicates about 20 days of rain, averaging 122 mm (4.8 in) for the month. 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 Merthyr Tydfil in December

Expect highs of 8°C (46°F) in Merthyr Tydfil in December, with nights dropping to around 2°C (36°F). December is part of the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Merthyr Tydfil in December

This month is characterized by fewer sunny days, with about 49 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Merthyr Tydfil.