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Monthly climate in Carndonagh, Ireland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Carndonagh features a oceanic climate (Cfb). Temperatures typically range between 6 °C (44 °F) and 15 °C (59 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 23 °C (73 °F). The average annual precipitation amounts to about 1315 mm (51.8 inches) and receives 218 rainy days on the 1 mm (0.04 inches) threshold annually. Carndonagh enjoys an average of 2941 hours of sunshine throughout the year, and daylight varies from 7 hours 12 minutes to 17 hours 18 minutes per day.

Monthly average temperatures in Carndonagh, Ireland

The warmest months in Carndonagh are July, August and September, with daily mean temperatures ranging from 13 to 15 °C (56 - 59 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 6 to 7 °C (44 - 45 °F) throughout the day. On average each year, Carndonagh experiences 0 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Carndonagh. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		13°C
(56°F)		14°C
(57°F)		17°C
(63°F)		20°C
(69°F)		21°C
(70°F)		23°C
(73°F)		20°C
(68°F)		21°C
(69°F)		18°C
(64°F)		15°C
(58°F)		13°C
(55°F)
Mean maximum12°C
(53°F)		12°C
(53°F)		12°C
(55°F)		15°C
(59°F)		18°C
(64°F)		18°C
(65°F)		21°C
(70°F)		19°C
(67°F)		19°C
(66°F)		16°C
(61°F)		14°C
(57°F)		12°C
(54°F)
Average high8°C
(47°F)		8°C
(47°F)		9°C
(48°F)		10°C
(50°F)		13°C
(55°F)		15°C
(58°F)		16°C
(61°F)		16°C
(61°F)		15°C
(59°F)		13°C
(55°F)		10°C
(51°F)		9°C
(48°F)
Daily mean7°C
(44°F)		6°C
(44°F)		7°C
(45°F)		8°C
(47°F)		11°C
(52°F)		13°C
(55°F)		14°C
(58°F)		15°C
(59°F)		13°C
(56°F)		11°C
(52°F)		9°C
(48°F)		7°C
(46°F)
Average low5°C
(42°F)		5°C
(41°F)		5°C
(42°F)		7°C
(44°F)		9°C
(48°F)		11°C
(52°F)		13°C
(55°F)		13°C
(56°F)		12°C
(54°F)		10°C
(50°F)		8°C
(46°F)		6°C
(43°F)
Mean minimum2°C
(35°F)		1°C
(34°F)		2°C
(35°F)		3°C
(38°F)		6°C
(43°F)		9°C
(48°F)		11°C
(51°F)		11°C
(52°F)		9°C
(48°F)		6°C
(44°F)		5°C
(40°F)		2°C
(37°F)
Minimum1°C
(34°F)		1°C
(33°F)		-2°C
(29°F)		2°C
(36°F)		4°C
(40°F)		8°C
(46°F)		10°C
(50°F)		10°C
(51°F)		8°C
(47°F)		4°C
(40°F)		4°C
(39°F)		1°C
(35°F)

Compare climate in Carndonagh with other places

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

Monthly average precipitation in Carndonagh, Ireland

Carndonagh usually has the most precipitation in August, October and December, with an average of 21 rainy days and 142 mm (5.6 inches) of precipitation per month. The driest months in Carndonagh are January, April and May. On average, 75 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Carndonagh. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)92 (3.6)121 (4.8)109 (4.3)57 (2.2)75 (3.0)100 (3.9)101 (4.0)146 (5.7)109 (4.3)141 (5.6)126 (5.0)139 (5.5)
Average precipitation days (≥ 1 mm)161818131416172219222221

Monthly sunshine hours in Carndonagh, Ireland

The sunniest months in Carndonagh are May, June and July, when the sun shines an average of 12 hours 44 minutes a day. Least sunny months in Carndonagh: January, November and December receive an average of 2 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Carndonagh. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours7014220131239937939235027722111479
Mean daily daylight hours7h 48m9h 39m11h 53m14h 11m16h 13m17h 18m16h 43m14h 52m12h 39m10h 23m8h 19m7h 12m

Solar UV radiation in Carndonagh, Ireland

Carndonagh 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 Carndonagh UV Index data.

Average daily maximum UV levels by month for Carndonagh. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124568875321