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Monthly climate in Holyhead, Wales, United Kingdom

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Holyhead features a oceanic climate (Cfb).Temperatures typically range between 7 °C (46 °F) and 16 °C (61 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 24 °C (76 °F).The average annual precipitation amounts to about 1183 mm (46.6 inches) and receives 185 rainy days on the 1 mm (0.04 inches) threshold annually.Holyhead enjoys an average of 3204 hours of sunshine throughout the year, and daylight varies from 7 hours 35 minutes to 16 hours 53 minutes per day.

Monthly average temperatures in Holyhead, Wales, United Kingdom §

The warmest months in Holyhead are July, August and September, with daily mean temperatures ranging from 15 to 16 °C (59 - 61 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 7 to 8 °C (46 - 46 °F) throughout the day. On average each year, Holyhead experiences 0 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Holyhead, 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)		 15°C
(59°F)		 15°C
(60°F)		 19°C
(67°F)		 22°C
(72°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 20°C
(68°F)		 15°C
(60°F)		 13°C
(56°F)
Mean maximum 12°C
(54°F)		 12°C
(54°F)		 13°C
(55°F)		 16°C
(61°F)		 18°C
(65°F)		 21°C
(70°F)		 22°C
(71°F)		 21°C
(70°F)		 20°C
(69°F)		 17°C
(63°F)		 14°C
(58°F)		 13°C
(55°F)
Average high 9°C
(48°F)		 9°C
(48°F)		 9°C
(49°F)		 11°C
(52°F)		 13°C
(56°F)		 16°C
(60°F)		 17°C
(63°F)		 17°C
(63°F)		 16°C
(61°F)		 14°C
(57°F)		 11°C
(53°F)		 10°C
(50°F)
Daily mean 7°C
(46°F)		 7°C
(46°F)		 8°C
(46°F)		 9°C
(49°F)		 11°C
(53°F)		 14°C
(57°F)		 15°C
(60°F)		 16°C
(61°F)		 15°C
(59°F)		 13°C
(55°F)		 10°C
(50°F)		 8°C
(48°F)
Average low 6°C
(43°F)		 6°C
(43°F)		 6°C
(43°F)		 7°C
(45°F)		 9°C
(49°F)		 12°C
(54°F)		 14°C
(57°F)		 14°C
(58°F)		 13°C
(56°F)		 11°C
(52°F)		 9°C
(48°F)		 7°C
(45°F)
Mean minimum 3°C
(37°F)		 2°C
(35°F)		 2°C
(36°F)		 4°C
(39°F)		 5°C
(42°F)		 9°C
(49°F)		 12°C
(53°F)		 12°C
(53°F)		 10°C
(50°F)		 7°C
(45°F)		 5°C
(40°F)		 3°C
(38°F)
Minimum 2°C
(35°F)		 -0°C
(32°F)		 -3°C
(26°F)		 3°C
(38°F)		 3°C
(38°F)		 9°C
(48°F)		 11°C
(51°F)		 11°C
(52°F)		 9°C
(48°F)		 3°C
(38°F)		 4°C
(39°F)		 3°C
(37°F)

Compare climate in Holyhead with other places

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

Monthly average precipitation in Holyhead, Wales, United Kingdom §

Holyhead usually has the most precipitation in October, November and December, with an average of 20 rainy days and 149 mm (5.9 inches) of precipitation per month.The driest months in Holyhead are April, May and July. On average, 58 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Holyhead, 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) 81 (3.2) 106 (4.2) 101 (4.0) 50 (2.0) 58 (2.3) 80 (3.2) 66 (2.6) 97 (3.8) 97 (3.8) 151 (6.0) 145 (5.7) 151 (5.9)
Average precipitation days (≥ 1 mm) 13 17 17 10 11 13 12 17 14 19 21 21

Monthly sunshine hours in Holyhead, Wales, United Kingdom §

The sunniest months in Holyhead are May, June and July, when the sun shines an average of 13 hours 25 minutes a day.Least sunny months in Holyhead: January, November and December receive an average of 3 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Holyhead, 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 90 158 224 334 414 403 417 376 311 236 126 108
Mean daily daylight hours 8h 8m 9h 50m 11h 54m 14h 1m 15h 53m 16h 53m 16h 21m 14h 40m 12h 37m 10h 30m 8h 36m 7h 35m

Solar UV radiation in Holyhead, Wales, United Kingdom §

Holyhead 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 Holyhead UV Index data.

Average daily maximum UV levels by month for Holyhead, 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 5 7 8 8 7 5 4 2 1