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Monthly climate in Graiguenamanagh, Ireland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Graiguenamanagh features a oceanic climate (Cfb). Temperatures typically range between 6 °C (42 °F) and 16 °C (61 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 28 °C (82 °F). The average annual precipitation amounts to about 926 mm (36.5 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually. Graiguenamanagh enjoys an average of 3122 hours of sunshine throughout the year, and daylight varies from 7 hours 42 minutes to 16 hours 44 minutes per day.

Monthly average temperatures in Graiguenamanagh, Ireland

The warmest months in Graiguenamanagh 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 6 to 7 °C (42 - 44 °F) throughout the day. On average each year, Graiguenamanagh experiences 2 days above 25 °C (77.0 °F) and 23 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Graiguenamanagh. 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
(73°F)		28°C
(82°F)		27°C
(81°F)		24°C
(76°F)		25°C
(77°F)		18°C
(65°F)		15°C
(59°F)		14°C
(57°F)
Mean maximum12°C
(54°F)		13°C
(55°F)		15°C
(59°F)		17°C
(63°F)		20°C
(69°F)		23°C
(73°F)		24°C
(76°F)		23°C
(73°F)		21°C
(71°F)		17°C
(63°F)		14°C
(58°F)		13°C
(55°F)
Average high8°C
(47°F)		9°C
(48°F)		10°C
(50°F)		12°C
(54°F)		15°C
(59°F)		18°C
(64°F)		20°C
(68°F)		19°C
(66°F)		17°C
(63°F)		13°C
(56°F)		10°C
(51°F)		9°C
(48°F)
Daily mean6°C
(42°F)		6°C
(44°F)		7°C
(44°F)		9°C
(48°F)		11°C
(53°F)		14°C
(58°F)		16°C
(61°F)		15°C
(60°F)		13°C
(56°F)		11°C
(51°F)		8°C
(46°F)		7°C
(44°F)
Average low3°C
(38°F)		4°C
(39°F)		3°C
(38°F)		5°C
(41°F)		7°C
(45°F)		10°C
(51°F)		12°C
(55°F)		12°C
(54°F)		10°C
(50°F)		8°C
(46°F)		5°C
(41°F)		4°C
(40°F)
Mean minimum-3°C
(27°F)		-2°C
(28°F)		-2°C
(29°F)		-2°C
(29°F)		1°C
(34°F)		6°C
(43°F)		8°C
(46°F)		7°C
(45°F)		3°C
(38°F)		1°C
(34°F)		-1°C
(30°F)		-2°C
(29°F)
Minimum-5°C
(24°F)		-4°C
(25°F)		-7°C
(20°F)		-3°C
(27°F)		-2°C
(29°F)		5°C
(41°F)		6°C
(42°F)		6°C
(42°F)		0°C
(33°F)		-2°C
(28°F)		-3°C
(27°F)		-5°C
(24°F)

Compare climate in Graiguenamanagh with other places

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

Monthly average precipitation in Graiguenamanagh, Ireland

Graiguenamanagh usually has the most precipitation in August, November and December, with an average of 13 rainy days and 99 mm (3.9 inches) of precipitation per month. The driest months in Graiguenamanagh are January, July and September. On average, 58 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Graiguenamanagh. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)48 (1.9)92 (3.6)79 (3.1)65 (2.6)65 (2.5)67 (2.7)62 (2.4)96 (3.8)64 (2.5)89 (3.5)97 (3.8)103 (4.0)
Average precipitation days (≥ 1 mm)101515111012111411131413

Monthly sunshine hours in Graiguenamanagh, Ireland

The sunniest months in Graiguenamanagh are May, June and July, when the sun shines an average of 13 hours 6 minutes a day. Least sunny months in Graiguenamanagh: January, November and December receive an average of 3 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Graiguenamanagh. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours92149206310400397408358307245135109
Mean daily daylight hours8h 14m9h 53m11h 54m13h 58m15h 47m16h 44m16h 14m14h 36m12h 36m10h 33m8h 42m7h 42m

Solar UV radiation in Graiguenamanagh, Ireland

Graiguenamanagh 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 Graiguenamanagh UV Index data.

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