The weather in Carmarthen in February is very cold with temperatures between 39°F and 46°F, warm clothes are a must.
You can expect rain for roughly half of the month of February in Carmarthen. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Carmarthen can expect a few days of snow in February.
Our weather forecast can give you a great sense of what weather to expect in Carmarthen in February 2026.
If you’re planning to visit Carmarthen in the near future, we highly recommend that you review the 14 day weather forecast for Carmarthen before you arrive.
Temperatures
46° / 39°
Rainy Days
9
Snowy Days
2
Dry Days
17
Rainfall
3.82
in
Sun Hours
6.7
Hrs
