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Monthly climate in Hillsborough, Northern Ireland, United Kingdom

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Hillsborough features a oceanic climate (Cfb).Temperatures typically range between 6 °C (43 °F) and 15 °C (60 °F) through the year, but rarely can drop to -4 °C (26 °F) or can rise to as high as 26 °C (79 °F).The average annual precipitation amounts to about 969 mm (38.2 inches) and receives 170 rainy days on the 1 mm (0.04 inches) threshold annually.Hillsborough enjoys an average of 3035 hours of sunshine throughout the year, and daylight varies from 7 hours 21 minutes to 17 hours 7 minutes per day.

Monthly average temperatures in Hillsborough, Northern Ireland, United Kingdom §

The warmest months in Hillsborough are June, July and August, with daily mean temperatures ranging from 14 to 15 °C (57 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 6 °C (43 - 44 °F) throughout the day. On average each year, Hillsborough experiences 0 days above 25 °C (77.0 °F) and 6 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hillsborough, Northern Ireland, 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)		 13°C
(56°F)		 16°C
(60°F)		 18°C
(65°F)		 22°C
(71°F)		 26°C
(79°F)		 26°C
(78°F)		 22°C
(71°F)		 21°C
(71°F)		 18°C
(65°F)		 15°C
(59°F)		 13°C
(56°F)
Mean maximum 12°C
(54°F)		 12°C
(54°F)		 14°C
(57°F)		 16°C
(60°F)		 19°C
(67°F)		 21°C
(69°F)		 23°C
(74°F)		 21°C
(70°F)		 20°C
(68°F)		 17°C
(63°F)		 14°C
(58°F)		 12°C
(55°F)
Average high 8°C
(46°F)		 8°C
(47°F)		 9°C
(49°F)		 11°C
(52°F)		 14°C
(58°F)		 17°C
(62°F)		 18°C
(65°F)		 18°C
(64°F)		 16°C
(61°F)		 13°C
(56°F)		 10°C
(50°F)		 8°C
(47°F)
Daily mean 6°C
(43°F)		 6°C
(43°F)		 7°C
(44°F)		 8°C
(47°F)		 11°C
(52°F)		 14°C
(57°F)		 15°C
(60°F)		 15°C
(59°F)		 13°C
(56°F)		 11°C
(52°F)		 8°C
(47°F)		 6°C
(44°F)
Average low 4°C
(39°F)		 4°C
(39°F)		 4°C
(40°F)		 6°C
(42°F)		 8°C
(47°F)		 11°C
(52°F)		 13°C
(55°F)		 13°C
(55°F)		 11°C
(52°F)		 9°C
(48°F)		 6°C
(43°F)		 5°C
(41°F)
Mean minimum -1°C
(30°F)		 -0°C
(31°F)		 0°C
(32°F)		 1°C
(34°F)		 3°C
(38°F)		 7°C
(45°F)		 9°C
(49°F)		 8°C
(47°F)		 7°C
(44°F)		 4°C
(39°F)		 1°C
(35°F)		 1°C
(34°F)
Minimum -4°C
(26°F)		 -2°C
(28°F)		 -3°C
(27°F)		 -1°C
(31°F)		 1°C
(34°F)		 6°C
(43°F)		 8°C
(47°F)		 8°C
(46°F)		 4°C
(39°F)		 1°C
(35°F)		 -0°C
(32°F)		 -1°C
(30°F)

Compare climate in Hillsborough with other places

Compare temperature, precipitation, sunshine, UV index in Hillsborough, Northern Ireland, United Kingdom with other places around the world.

Monthly average precipitation in Hillsborough, Northern Ireland, United Kingdom §

Hillsborough usually has the most precipitation in August, October and November, with an average of 16 rainy days and 101 mm (4.0 inches) of precipitation per month.The driest months in Hillsborough are January, April and May. On average, 57 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hillsborough, Northern Ireland, 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) 60 (2.3) 89 (3.5) 80 (3.2) 45 (1.8) 66 (2.6) 78 (3.1) 84 (3.3) 115 (4.5) 75 (3.0) 92 (3.6) 94 (3.7) 91 (3.6)
Average precipitation days (≥ 1 mm) 10 14 16 10 13 14 14 19 15 15 15 15

Monthly sunshine hours in Hillsborough, Northern Ireland, United Kingdom §

The sunniest months in Hillsborough are May, June and July, when the sun shines an average of 12 hours 59 minutes a day.Least sunny months in Hillsborough: January, November and December receive an average of 3 hours 4 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hillsborough, Northern Ireland, 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 80 149 208 321 402 394 398 349 294 231 115 87
Mean daily daylight hours 7h 56m 9h 44m 11h 54m 14h 7m 16h 5m 17h 7m 16h 34m 14h 47m 12h 38m 10h 26m 8h 27m 7h 21m

Solar UV radiation in Hillsborough, Northern Ireland, United Kingdom §

Hillsborough experiences the highest level of ultraviolet (UV) radiation in May, June and July, 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 Hillsborough UV Index data.

Average daily maximum UV levels by month for Hillsborough, Northern Ireland, 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 6 5 3 2 1