Carmarthen Weather in December

Carmarthen in December averages 10°C (50°F) during the day and 5°C (41°F) at night. This is the wettest month of the year, and part of the winter season.

Rainfall in Carmarthen in December

Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. Typically, you can expect about 20 days of rain this month, with 139 mm (5.5 in) on average. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Carmarthen in December

In December, Carmarthen gets low temperatures, with highs of 10°C (50°F). Nights cool to around 5°C (41°F). December is part of winter. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. Nights fall to 5°C (41°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

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