The Carmarthen long range forecast shows a slight warming trend, with temperatures gently rising above the seasonal average, 4.8 °C comparing to the historical average.
Select a month and click on a day for more information:
Thursday
Oct 1
18° / 16°
Friday
Oct 2
18° / 14°
Saturday
Oct 3
14° / 9°
Sunday
Oct 4
14° / 9°
Monday
Oct 5
14° / 10°
Tuesday
Oct 6
15° / 10°
Wednesday
Oct 7
15° / 11°
Thursday
Oct 8
15° / 10°
Friday
Oct 9
15° / 9°
Saturday
Oct 10
14° / 8°
Sunday
Oct 11
13° / 7°
Monday
Oct 12
13° / 8°
Tuesday
Oct 13
14° / 8°
Wednesday
Oct 14
13° / 8°
Thursday
Oct 15
13° / 8°
Friday
Oct 16
13° / 8°
Saturday
Oct 17
14° / 9°
Sunday
Oct 18
14° / 9°
Monday
Oct 19
14° / 11°
Tuesday
Oct 20
14° / 10°
Wednesday
Oct 21
12° / 9°
Thursday
Oct 22
13° / 7°
Friday
Oct 23
12° / 8°
Saturday
Oct 24
14° / 9°
Sunday
Oct 25
12° / 7°
Monday
Oct 26
13° / 8°
Tuesday
Oct 27
13° / 8°
Wednesday
Oct 28
13° / 10°
Thursday
Oct 29
13° / 8°
Friday
Oct 30
13° / 9°
Saturday
Oct 31
13° / 9°
Carmarthen 30 days weather forecast
Check out our estimated 30 days weather forecast for Carmarthen, this data is based on the average weather in Carmarthen in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Carmarthen next to the desired date.