The temperatures in Carmarthen in June are usually low and can range between 10°C and 17°C.
You can expect about 3 to 8 days of rain in Carmarthen during the month of June. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Carmarthen in June 2025.
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
17° / 10°
Rainy Days
7
Snowy Days
0
Dry Days
23
Rainfall
93
mm
Sun Hours
8.2
Hrs