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Monthly climate in Holycross, Ireland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Holycross features a oceanic climate (Cfb). Temperatures typically range between 5 °C (42 °F) and 16 °C (60 °F) through the year, but rarely can drop to -7 °C (19 °F) or can rise to as high as 28 °C (84 °F). The average annual precipitation amounts to about 941 mm (37.1 inches) and receives 164 rainy days on the 1 mm (0.04 inches) threshold annually. Holycross enjoys an average of 2933 hours of sunshine throughout the year, and daylight varies from 7 hours 42 minutes to 16 hours 45 minutes per day.

Monthly average temperatures in Holycross, Ireland

The warmest months in Holycross are June, July and August, with daily mean temperatures ranging from 14 to 16 °C (57 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 6 °C (42 - 43 °F) throughout the day. On average each year, Holycross experiences 2 days above 25 °C (77.0 °F) and 20 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Holycross. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		14°C
(58°F)		17°C
(62°F)		20°C
(68°F)		23°C
(74°F)		28°C
(84°F)		28°C
(82°F)		24°C
(76°F)		25°C
(78°F)		19°C
(66°F)		15°C
(60°F)		14°C
(57°F)
Mean maximum12°C
(54°F)		12°C
(55°F)		15°C
(59°F)		17°C
(63°F)		21°C
(70°F)		23°C
(73°F)		24°C
(75°F)		23°C
(73°F)		21°C
(71°F)		17°C
(62°F)		14°C
(58°F)		13°C
(55°F)
Average high8°C
(46°F)		8°C
(47°F)		10°C
(50°F)		12°C
(54°F)		15°C
(59°F)		17°C
(64°F)		19°C
(67°F)		18°C
(65°F)		16°C
(61°F)		13°C
(55°F)		10°C
(50°F)		8°C
(47°F)
Daily mean5°C
(42°F)		6°C
(43°F)		6°C
(44°F)		8°C
(47°F)		11°C
(52°F)		14°C
(57°F)		16°C
(60°F)		15°C
(59°F)		13°C
(56°F)		10°C
(50°F)		7°C
(45°F)		6°C
(43°F)
Average low3°C
(38°F)		3°C
(38°F)		3°C
(38°F)		5°C
(41°F)		7°C
(45°F)		10°C
(50°F)		12°C
(54°F)		12°C
(54°F)		10°C
(50°F)		7°C
(45°F)		5°C
(41°F)		4°C
(40°F)
Mean minimum-3°C
(27°F)		-2°C
(29°F)		-2°C
(29°F)		-2°C
(29°F)		1°C
(34°F)		5°C
(42°F)		8°C
(48°F)		7°C
(45°F)		4°C
(39°F)		2°C
(35°F)		-1°C
(31°F)		-2°C
(29°F)
Minimum-6°C
(22°F)		-3°C
(27°F)		-7°C
(19°F)		-3°C
(28°F)		-1°C
(31°F)		4°C
(40°F)		6°C
(44°F)		6°C
(43°F)		1°C
(35°F)		-2°C
(29°F)		-2°C
(28°F)		-6°C
(21°F)

Compare climate in Holycross with other places

Compare temperature, precipitation, sunshine, UV index in Holycross, Ireland with other places around the world.

Monthly average precipitation in Holycross, Ireland

Holycross usually has the most precipitation in February, August and December, with an average of 16 rainy days and 101 mm (4.0 inches) of precipitation per month. The driest months in Holycross are January, April and May. On average, 59 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Holycross. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)56 (2.2)100 (3.9)87 (3.4)57 (2.2)63 (2.5)67 (2.6)71 (2.8)95 (3.7)64 (2.5)89 (3.5)84 (3.3)107 (4.2)
Average precipitation days (≥ 1 mm)111616111113131613141416

Monthly sunshine hours in Holycross, Ireland

The sunniest months in Holycross are May, June and July, when the sun shines an average of 12 hours 32 minutes a day. Least sunny months in Holycross: January, November and December receive an average of 3 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Holycross. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours84140188290384380389331287232123101
Mean daily daylight hours8h 14m9h 53m11h 54m13h 58m15h 47m16h 45m16h 14m14h 36m12h 36m10h 33m8h 41m7h 42m

Solar UV radiation in Holycross, Ireland

Holycross 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 Holycross UV Index data.

Average daily maximum UV levels by month for Holycross. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124578875421