Climate of Merthyr Tydfil, United Kingdom
Area-weighted average across Merthyr Tydfil. For where people actually live and travel, see the cities below.
Merthyr Tydfil, a subdivision of United Kingdom, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 3.1°C / 37.6°F in February to 15.1°C / 59.2°F in July, with rainfall from 78 mm / 3.1 in to 160 mm / 6.3 in depending on the season (1403 mm / 55.2 in total across the year).
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 3.4°C38.1°F | 158 mm6.2″ | — |
| February | 3.1°C37.6°F | 113 mm4.4″ | — |
| March | 4.9°C40.8°F | 119 mm4.7″ | — |
| April | 6.8°C44.2°F | 86 mm3.4″ | — |
| May | 10.1°C50.2°F | 83 mm3.3″ | — |
| June | 12.8°C55°F | 86 mm3.4″ | — |
| July | 15.1°C59.2°F | 78 mm3.1″ | — |
| August | 14.9°C58.8°F | 106 mm4.2″ | — |
| September | 12.5°C54.5°F | 120 mm4.7″ | — |
| October | 9.5°C49.1°F | 138 mm5.4″ | — |
| November | 6.3°C43.3°F | 156 mm6.1″ | — |
| December | 4.4°C39.9°F | 160 mm6.3″ | — |
Frequently asked questions
What is the best time to visit Merthyr Tydfil?
Merthyr Tydfil, United Kingdom does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 15.1°C / 59.2°F, and the driest is July at 78 mm / 3.1 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Merthyr Tydfil?
Merthyr Tydfil, United Kingdom has area-weighted monthly average temperatures ranging from 3.1°C / 37.6°F in February to 15.1°C / 59.2°F in July. Annual rainfall averages about 1403 mm / 55.2 in, with the wettest month being December (160 mm / 6.3 in) and the driest July (78 mm / 3.1 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Merthyr Tydfil?
The hottest month in Merthyr Tydfil is July, with an area-wide average temperature of 15.1°C / 59.2°F.
What is the coldest month in Merthyr Tydfil?
The coldest month in Merthyr Tydfil is February, with an area-wide average temperature of 3.1°C / 37.6°F.
When does it rain most in Merthyr Tydfil?
The wettest month in Merthyr Tydfil is December, averaging about 160 mm / 6.3 in of rainfall. The driest is July with about 78 mm / 3.1 in.