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Monthly climate in Caerleon, Wales, United Kingdom

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Caerleon features a oceanic climate (Cfb).Temperatures typically range between 6 °C (42 °F) and 18 °C (64 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 30 °C (87 °F).The average annual precipitation amounts to about 950 mm (37.4 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually.Caerleon enjoys an average of 2911 hours of sunshine throughout the year, and daylight varies from 7 hours 53 minutes to 16 hours 33 minutes per day.

Monthly average temperatures in Caerleon, Wales, United Kingdom §

The warmest months in Caerleon are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (61 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 7 °C (42 - 45 °F) throughout the day. On average each year, Caerleon experiences 8 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Caerleon, 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 14°C
(57°F)		 16°C
(61°F)		 20°C
(67°F)		 22°C
(71°F)		 25°C
(78°F)		 29°C
(85°F)		 29°C
(85°F)		 30°C
(87°F)		 28°C
(83°F)		 22°C
(72°F)		 16°C
(62°F)		 14°C
(57°F)
Mean maximum 12°C
(54°F)		 13°C
(56°F)		 16°C
(61°F)		 20°C
(68°F)		 22°C
(71°F)		 26°C
(78°F)		 27°C
(82°F)		 26°C
(79°F)		 24°C
(76°F)		 19°C
(66°F)		 15°C
(59°F)		 13°C
(55°F)
Average high 8°C
(47°F)		 9°C
(48°F)		 10°C
(51°F)		 13°C
(56°F)		 16°C
(61°F)		 19°C
(67°F)		 21°C
(71°F)		 20°C
(68°F)		 18°C
(65°F)		 14°C
(58°F)		 11°C
(52°F)		 9°C
(49°F)
Daily mean 6°C
(42°F)		 6°C
(44°F)		 7°C
(46°F)		 10°C
(49°F)		 12°C
(55°F)		 16°C
(61°F)		 18°C
(64°F)		 17°C
(63°F)		 15°C
(59°F)		 12°C
(54°F)		 9°C
(48°F)		 7°C
(45°F)
Average low 3°C
(38°F)		 4°C
(39°F)		 5°C
(40°F)		 6°C
(42°F)		 9°C
(48°F)		 12°C
(54°F)		 14°C
(58°F)		 14°C
(57°F)		 12°C
(53°F)		 9°C
(49°F)		 6°C
(43°F)		 5°C
(41°F)
Mean minimum -2°C
(29°F)		 -2°C
(29°F)		 -0°C
(32°F)		 1°C
(33°F)		 3°C
(38°F)		 9°C
(48°F)		 11°C
(52°F)		 10°C
(50°F)		 7°C
(44°F)		 4°C
(39°F)		 0°C
(33°F)		 -1°C
(30°F)
Minimum -3°C
(27°F)		 -4°C
(25°F)		 -5°C
(23°F)		 -1°C
(31°F)		 2°C
(36°F)		 8°C
(46°F)		 9°C
(49°F)		 9°C
(48°F)		 4°C
(40°F)		 1°C
(33°F)		 -1°C
(30°F)		 -5°C
(24°F)

Compare climate in Caerleon with other places

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

Monthly average precipitation in Caerleon, Wales, United Kingdom §

Caerleon usually has the most precipitation in August, October and December, with an average of 14 rainy days and 102 mm (4.0 inches) of precipitation per month.The driest months in Caerleon are January, April and September. On average, 61 mm (2.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Caerleon, 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) 64 (2.5) 79 (3.1) 83 (3.3) 55 (2.2) 71 (2.8) 79 (3.1) 69 (2.7) 85 (3.3) 65 (2.5) 115 (4.5) 80 (3.1) 106 (4.2)
Average precipitation days (≥ 1 mm) 11 13 14 9 12 12 11 13 10 14 14 16

Monthly sunshine hours in Caerleon, Wales, United Kingdom §

The sunniest months in Caerleon are May, June and July, when the sun shines an average of 12 hours 18 minutes a day.Least sunny months in Caerleon: January, November and December receive an average of 3 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Caerleon, 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 81 133 192 303 378 355 398 345 278 224 120 99
Mean daily daylight hours 8h 23m 9h 58m 11h 55m 13h 54m 15h 38m 16h 33m 16h 4m 14h 30m 12h 35m 10h 36m 8h 50m 7h 53m

Solar UV radiation in Caerleon, Wales, United Kingdom §

Caerleon 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 Caerleon UV Index data.

Average daily maximum UV levels by month for Caerleon, 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