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Monthly climate in Dunlewy, Ireland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Dunlewy features a oceanic climate (Cfb). Temperatures typically range between 6 °C (43 °F) and 14 °C (58 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 26 °C (79 °F). The average annual precipitation amounts to about 1414 mm (55.7 inches) and receives 224 rainy days on the 1 mm (0.04 inches) threshold annually. Dunlewy enjoys an average of 2939 hours of sunshine throughout the year, and daylight varies from 7 hours 15 minutes to 17 hours 15 minutes per day.

Monthly average temperatures in Dunlewy, Ireland

The warmest months in Dunlewy are July, August and September, with daily mean temperatures ranging from 13 to 14 °C (55 - 58 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 6 to 6 °C (43 - 44 °F) throughout the day. On average each year, Dunlewy experiences 0 days above 25 °C (77.0 °F) and 4 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dunlewy. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(57°F)		14°C
(57°F)		16°C
(61°F)		20°C
(68°F)		23°C
(74°F)		25°C
(77°F)		26°C
(79°F)		22°C
(71°F)		23°C
(74°F)		19°C
(66°F)		15°C
(58°F)		13°C
(55°F)
Mean maximum12°C
(53°F)		11°C
(53°F)		13°C
(56°F)		16°C
(61°F)		21°C
(69°F)		20°C
(68°F)		23°C
(74°F)		20°C
(69°F)		19°C
(67°F)		16°C
(62°F)		14°C
(57°F)		12°C
(53°F)
Average high8°C
(46°F)		8°C
(46°F)		9°C
(48°F)		11°C
(52°F)		13°C
(56°F)		15°C
(60°F)		17°C
(62°F)		16°C
(62°F)		15°C
(59°F)		12°C
(54°F)		10°C
(50°F)		8°C
(47°F)
Daily mean6°C
(43°F)		6°C
(43°F)		6°C
(44°F)		8°C
(47°F)		11°C
(52°F)		13°C
(55°F)		14°C
(58°F)		14°C
(58°F)		13°C
(55°F)		10°C
(51°F)		8°C
(47°F)		7°C
(44°F)
Average low4°C
(40°F)		4°C
(39°F)		4°C
(40°F)		5°C
(42°F)		8°C
(46°F)		10°C
(51°F)		12°C
(54°F)		12°C
(54°F)		11°C
(51°F)		9°C
(48°F)		6°C
(44°F)		5°C
(41°F)
Mean minimum-0°C
(32°F)		-0°C
(31°F)		0°C
(33°F)		1°C
(35°F)		4°C
(39°F)		6°C
(44°F)		8°C
(47°F)		9°C
(49°F)		6°C
(44°F)		4°C
(39°F)		2°C
(36°F)		1°C
(34°F)
Minimum-2°C
(28°F)		-3°C
(27°F)		-3°C
(26°F)		-0°C
(32°F)		1°C
(35°F)		5°C
(42°F)		8°C
(46°F)		7°C
(46°F)		4°C
(40°F)		2°C
(37°F)		-1°C
(31°F)		-1°C
(30°F)

Compare climate in Dunlewy with other places

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

Monthly average precipitation in Dunlewy, Ireland

Dunlewy usually has the most precipitation in August, October and December, with an average of 22 rainy days and 152 mm (6.0 inches) of precipitation per month. The driest months in Dunlewy are April, May and June. On average, 80 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dunlewy. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)105 (4.1)138 (5.4)123 (4.8)60 (2.3)77 (3.0)104 (4.1)104 (4.1)152 (6.0)119 (4.7)151 (5.9)127 (5.0)154 (6.1)
Average precipitation days (≥ 1 mm)171719141417182320232022

Monthly sunshine hours in Dunlewy, Ireland

The sunniest months in Dunlewy are May, June and July, when the sun shines an average of 12 hours 42 minutes a day. Least sunny months in Dunlewy: January, November and December receive an average of 2 hours 51 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dunlewy. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours6814419731440037938834828022211479
Mean daily daylight hours7h 51m9h 41m11h 53m14h 9m16h 10m17h 15m16h 40m14h 50m12h 39m10h 24m8h 22m7h 15m

Solar UV radiation in Dunlewy, Ireland

Dunlewy 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 Dunlewy UV Index data.

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