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Monthly climate in Hirwaun, Wales, United Kingdom

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Hirwaun features a oceanic climate (Cfb).Temperatures typically range between 4 °C (40 °F) and 16 °C (61 °F) through the year, but rarely can drop to -7 °C (19 °F) or can rise to as high as 28 °C (83 °F).The average annual precipitation amounts to about 1269 mm (49.9 inches) and receives 175 rainy days on the 1 mm (0.04 inches) threshold annually.Hirwaun enjoys an average of 3052 hours of sunshine throughout the year, and daylight varies from 7 hours 51 minutes to 16 hours 34 minutes per day.

Monthly average temperatures in Hirwaun, Wales, United Kingdom §

The warmest months in Hirwaun are June, July and August, with daily mean temperatures ranging from 14 to 16 °C (58 - 61 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (40 - 43 °F) throughout the day. On average each year, Hirwaun experiences 3 days above 25 °C (77.0 °F) and 31 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hirwaun, Wales, United Kingdom.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 13°C
(55°F)		 16°C
(60°F)		 19°C
(66°F)		 21°C
(70°F)		 25°C
(77°F)		 28°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 27°C
(81°F)		 21°C
(70°F)		 15°C
(59°F)		 12°C
(54°F)
Mean maximum 11°C
(52°F)		 12°C
(54°F)		 15°C
(59°F)		 19°C
(67°F)		 21°C
(69°F)		 24°C
(75°F)		 26°C
(79°F)		 24°C
(76°F)		 23°C
(73°F)		 17°C
(64°F)		 13°C
(56°F)		 12°C
(53°F)
Average high 7°C
(45°F)		 8°C
(46°F)		 9°C
(49°F)		 12°C
(54°F)		 15°C
(59°F)		 18°C
(64°F)		 20°C
(68°F)		 18°C
(65°F)		 17°C
(62°F)		 13°C
(56°F)		 10°C
(50°F)		 8°C
(46°F)
Daily mean 4°C
(40°F)		 5°C
(42°F)		 6°C
(43°F)		 8°C
(47°F)		 11°C
(52°F)		 14°C
(58°F)		 16°C
(61°F)		 15°C
(60°F)		 13°C
(56°F)		 10°C
(51°F)		 7°C
(45°F)		 6°C
(43°F)
Average low 2°C
(36°F)		 3°C
(37°F)		 3°C
(38°F)		 4°C
(40°F)		 7°C
(45°F)		 11°C
(51°F)		 12°C
(54°F)		 12°C
(54°F)		 10°C
(50°F)		 8°C
(46°F)		 5°C
(40°F)		 4°C
(39°F)
Mean minimum -4°C
(26°F)		 -3°C
(27°F)		 -2°C
(28°F)		 -2°C
(29°F)		 0°C
(33°F)		 6°C
(43°F)		 8°C
(47°F)		 7°C
(45°F)		 4°C
(40°F)		 2°C
(36°F)		 -2°C
(28°F)		 -3°C
(27°F)
Minimum -6°C
(22°F)		 -5°C
(23°F)		 -7°C
(19°F)		 -4°C
(26°F)		 -1°C
(31°F)		 5°C
(41°F)		 6°C
(42°F)		 5°C
(42°F)		 2°C
(36°F)		 -2°C
(28°F)		 -3°C
(26°F)		 -6°C
(21°F)

Compare climate in Hirwaun with other places

Compare temperature, precipitation, sunshine, UV index in Hirwaun, Wales, United Kingdom with other places around the world.

Monthly average precipitation in Hirwaun, Wales, United Kingdom §

Hirwaun usually has the most precipitation in February, October and December, with an average of 16 rainy days and 137 mm (5.4 inches) of precipitation per month.The driest months in Hirwaun are January, April and June. On average, 79 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hirwaun, Wales, United Kingdom.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 82 (3.2) 124 (4.9) 111 (4.4) 64 (2.5) 93 (3.7) 91 (3.6) 93 (3.7) 114 (4.5) 92 (3.6) 143 (5.6) 117 (4.6) 144 (5.7)
Average precipitation days (≥ 1 mm) 12 16 17 10 13 15 13 17 13 15 16 18

Monthly sunshine hours in Hirwaun, Wales, United Kingdom §

The sunniest months in Hirwaun are May, June and July, when the sun shines an average of 12 hours 47 minutes a day.Least sunny months in Hirwaun: January, November and December receive an average of 3 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hirwaun, Wales, United Kingdom.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 87 141 204 320 393 373 409 361 295 233 127 103
Mean daily daylight hours 8h 22m 9h 57m 11h 55m 13h 55m 15h 40m 16h 34m 16h 5m 14h 31m 12h 35m 10h 35m 8h 48m 7h 51m

Solar UV radiation in Hirwaun, Wales, United Kingdom §

Hirwaun experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 7 - 8, which corresponds to the High / Very High category of sun exposure.January, February and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Hirwaun UV Index data.

Average daily maximum UV levels by month for Hirwaun, Wales, United Kingdom.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 1 2 4 6 7 8 8 7 6 4 2 1