Carmarthen Weather in January

During January, Carmarthen experiences low daytime temperatures of 9°C (48°F) and cooler nights around 4°C (39°F). As part of the winter season, expect quite a bit of rainfall. Around 127 mm (5 in) is typical.

Rainfall in Carmarthen in January

You can typically expect 20 days of rain this month, averaging around 127 mm (5 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 Carmarthen in January

In January, Carmarthen sees low temperatures, with highs of 9°C (48°F). Nights drop to around 4°C (39°F). The winter season is characteristic of January. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. The temperatures in January are typically the coolest of the year.

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

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• January
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• May
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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 January

Min Temperature 4°C (39°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 67%  

Precipitation 127 mm (5 in)  

Rainy days 20 days  

What to Wear in Carmarthen in January

Cold weather calls for smart layering in January. 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.

What To Do in Carmarthen in January

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.