Climate of Carmarthenshire, United Kingdom
Area-weighted average across Carmarthenshire. For where people actually live and travel, see the cities below.
Carmarthenshire, a subdivision of United Kingdom, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 4.4°C / 39.9°F in February to 15.4°C / 59.7°F in July, with rainfall from 73 mm / 2.9 in to 149 mm / 5.9 in depending on the season (1304 mm / 51.3 in total across the year).
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 4.7°C40.5°F | 140 mm5.5″ | — |
| February | 4.4°C39.9°F | 99 mm3.9″ | — |
| March | 5.9°C42.6°F | 108 mm4.3″ | — |
| April | 7.6°C45.7°F | 79 mm3.1″ | — |
| May | 10.7°C51.3°F | 73 mm2.9″ | — |
| June | 13.2°C55.8°F | 83 mm3.3″ | — |
| July | 15.4°C59.7°F | 81 mm3.2″ | — |
| August | 15.4°C59.7°F | 101 mm4″ | — |
| September | 13.2°C55.8°F | 110 mm4.3″ | — |
| October | 10.5°C50.9°F | 136 mm5.4″ | — |
| November | 7.4°C45.3°F | 149 mm5.9″ | — |
| December | 5.7°C42.3°F | 145 mm5.7″ | — |
Frequently asked questions
What is the best time to visit Carmarthenshire?
Carmarthenshire, United Kingdom does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 15.4°C / 59.7°F, and the driest is May at 73 mm / 2.9 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Carmarthenshire?
Carmarthenshire, United Kingdom has area-weighted monthly average temperatures ranging from 4.4°C / 39.9°F in February to 15.4°C / 59.7°F in July. Annual rainfall averages about 1304 mm / 51.3 in, with the wettest month being November (149 mm / 5.9 in) and the driest May (73 mm / 2.9 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Carmarthenshire?
The hottest month in Carmarthenshire is July, with an area-wide average temperature of 15.4°C / 59.7°F.
What is the coldest month in Carmarthenshire?
The coldest month in Carmarthenshire is February, with an area-wide average temperature of 4.4°C / 39.9°F.
When does it rain most in Carmarthenshire?
The wettest month in Carmarthenshire is November, averaging about 149 mm / 5.9 in of rainfall. The driest is May with about 73 mm / 2.9 in.