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.

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

Carmarthen Temperature in December

Min Temperature 5°C (41°F)  

Max Temperature 10°C (50°F)  

Chance of Rain 66%  

Precipitation 139 mm (5.5 in)  

Rainy days 20 days  

What to Wear in Carmarthen in December

Dress warmly and in layers for your trip to Carmarthen in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags.

What To Do in Carmarthen in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

4/10

Walking

4/10

Barbeque

1/10

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 Carmarthen's climate page.

More climate data for Carmarthen

Temperature Rainfall

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