You can expect about 3 to 8 days of rain in Carmarthen during the month of May. 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 May 2024.

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

14° / 8°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

8.4

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
			1 13° /7°	2 11° /7°	3 12° /6°	4 12° /7°
5 12° /8°	6 12° /5°	7 12° /4°	8 14° /6°	9 14° /5°	10 14° /7°	11 15° /8°
12 12° /5°	13 13° /6°	14 14° /7°	15 13° /7°	16 14° /5°	17 14° /7°	18 14° /7°
19 15° /8°	20 15° /7°	21 15° /9°	22 14° /8°	23 13° /8°	24 15° /7°	25 15° /8°
26 15° /8°	27 16° /7°	28 17° /9°	29 17° /8°	30 17° /8°	31 18° /9°

Explore the weather in Carmarthen in other months

Carmarthen annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	8° / 4°	11	18	2	136 mm	Awful	Carmarthen in January
February	8° / 4°	9	17	2	97 mm	Awful	Carmarthen in February
March	10° / 4°	7	24	0	79 mm	Bad	Carmarthen in March
April	12° / 5°	6	24	0	63 mm	Ok	Carmarthen in April
May	14° / 8°	6	25	0	79 mm	Good	Carmarthen in May
June	17° / 10°	7	23	0	93 mm	Ok	Carmarthen in June
July	18° / 12°	6	25	0	96 mm	Good	Carmarthen in July
August	18° / 13°	7	24	0	102 mm	Ok	Carmarthen in August
September	17° / 11°	6	24	0	98 mm	Good	Carmarthen in September
October	14° / 10°	8	23	0	124 mm	Ok	Carmarthen in October
November	11° / 7°	10	20	0	138 mm	Bad	Carmarthen in November
December	9° / 5°	11	19	1	147 mm	Bad	Carmarthen in December