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Monthly climate in Gaillimh, Ireland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Gaillimh features a oceanic climate (Cfb). Temperatures typically range between 6 °C (43 °F) and 16 °C (60 °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 1131 mm (44.5 inches) and receives 177 rainy days on the 1 mm (0.04 inches) threshold annually. Gaillimh enjoys an average of 2913 hours of sunshine throughout the year, and daylight varies from 7 hours 36 minutes to 16 hours 51 minutes per day.

Monthly average temperatures in Gaillimh, Ireland

The warmest months in Gaillimh 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 6 to 7 °C (43 - 45 °F) throughout the day. On average each year, Gaillimh experiences 3 days above 25 °C (77.0 °F) and 15 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Gaillimh. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(58°F)		16°C
(60°F)		18°C
(64°F)		22°C
(71°F)		25°C
(78°F)		30°C
(87°F)		29°C
(85°F)		24°C
(75°F)		26°C
(80°F)		20°C
(68°F)		15°C
(60°F)		14°C
(57°F)
Mean maximum12°C
(55°F)		13°C
(56°F)		15°C
(59°F)		18°C
(65°F)		22°C
(73°F)		23°C
(74°F)		25°C
(77°F)		22°C
(72°F)		22°C
(72°F)		17°C
(63°F)		14°C
(58°F)		13°C
(56°F)
Average high8°C
(47°F)		9°C
(48°F)		10°C
(51°F)		13°C
(55°F)		15°C
(60°F)		17°C
(64°F)		19°C
(67°F)		18°C
(65°F)		16°C
(62°F)		13°C
(56°F)		10°C
(51°F)		9°C
(48°F)
Daily mean6°C
(43°F)		6°C
(44°F)		7°C
(45°F)		9°C
(49°F)		12°C
(53°F)		14°C
(57°F)		16°C
(60°F)		15°C
(59°F)		13°C
(56°F)		11°C
(51°F)		8°C
(47°F)		7°C
(45°F)
Average low4°C
(39°F)		4°C
(39°F)		4°C
(39°F)		5°C
(42°F)		8°C
(46°F)		10°C
(51°F)		12°C
(54°F)		12°C
(54°F)		10°C
(51°F)		8°C
(46°F)		5°C
(42°F)		5°C
(41°F)
Mean minimum-2°C
(28°F)		-2°C
(29°F)		-1°C
(30°F)		-1°C
(31°F)		2°C
(36°F)		5°C
(42°F)		8°C
(46°F)		7°C
(46°F)		4°C
(39°F)		2°C
(37°F)		-0°C
(32°F)		-1°C
(31°F)
Minimum-5°C
(24°F)		-4°C
(26°F)		-5°C
(23°F)		-2°C
(28°F)		-1°C
(31°F)		4°C
(40°F)		6°C
(43°F)		6°C
(44°F)		1°C
(34°F)		-1°C
(31°F)		-2°C
(29°F)		-4°C
(24°F)

Compare climate in Gaillimh with other places

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

Monthly average precipitation in Gaillimh, Ireland

Gaillimh usually has the most precipitation in February, August and October, with an average of 17 rainy days and 121 mm (4.8 inches) of precipitation per month. The driest months in Gaillimh are January, April and May. On average, 70 mm (2.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Gaillimh. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)77 (3.0)127 (5.0)104 (4.1)63 (2.5)70 (2.8)83 (3.3)85 (3.4)122 (4.8)82 (3.2)113 (4.4)94 (3.7)110 (4.3)
Average precipitation days (≥ 1 mm)121616101315131814171617

Monthly sunshine hours in Gaillimh, Ireland

The sunniest months in Gaillimh are May, June and July, when the sun shines an average of 12 hours 36 minutes a day. Least sunny months in Gaillimh: January, November and December receive an average of 3 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Gaillimh. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours7313318431439538138333528422011591
Mean daily daylight hours8h 9m9h 50m11h 54m14h 1m15h 52m16h 51m16h 19m14h 39m12h 36m10h 31m8h 38m7h 36m

Solar UV radiation in Gaillimh, Ireland

Gaillimh 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 Gaillimh UV Index data.

Average daily maximum UV levels by month for Gaillimh. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124578875321