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Monthly climate in Longford, Ireland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Longford 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 -6 °C (22 °F) or can rise to as high as 29 °C (85 °F). The average annual precipitation amounts to about 1056 mm (41.6 inches) and receives 174 rainy days on the 1 mm (0.04 inches) threshold annually. Longford enjoys an average of 2673 hours of sunshine throughout the year, and daylight varies from 7 hours 30 minutes to 16 hours 58 minutes per day.

Monthly average temperatures in Longford, Ireland

The warmest months in Longford 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 6 °C (42 - 43 °F) throughout the day. On average each year, Longford experiences 2 days above 25 °C (77.0 °F) and 17 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Longford. 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)		17°C
(64°F)		21°C
(71°F)		25°C
(78°F)		29°C
(85°F)		29°C
(84°F)		24°C
(75°F)		25°C
(78°F)		20°C
(69°F)		15°C
(59°F)		13°C
(56°F)
Mean maximum12°C
(54°F)		13°C
(55°F)		15°C
(59°F)		18°C
(65°F)		22°C
(72°F)		22°C
(72°F)		25°C
(77°F)		22°C
(72°F)		21°C
(71°F)		17°C
(63°F)		14°C
(57°F)		13°C
(55°F)
Average high8°C
(46°F)		8°C
(47°F)		10°C
(50°F)		12°C
(54°F)		15°C
(60°F)		18°C
(64°F)		19°C
(67°F)		18°C
(65°F)		16°C
(62°F)		13°C
(55°F)		10°C
(50°F)		8°C
(47°F)
Daily mean6°C
(42°F)		6°C
(43°F)		7°C
(44°F)		9°C
(48°F)		12°C
(53°F)		14°C
(58°F)		16°C
(61°F)		15°C
(59°F)		13°C
(56°F)		10°C
(51°F)		7°C
(46°F)		6°C
(43°F)
Average low3°C
(38°F)		3°C
(38°F)		4°C
(39°F)		5°C
(41°F)		8°C
(46°F)		11°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)		-1°C
(30°F)		-1°C
(30°F)		-1°C
(31°F)		2°C
(35°F)		5°C
(42°F)		8°C
(47°F)		8°C
(46°F)		5°C
(41°F)		2°C
(36°F)		-0°C
(32°F)		-1°C
(31°F)
Minimum-6°C
(22°F)		-3°C
(27°F)		-5°C
(24°F)		-3°C
(27°F)		-2°C
(29°F)		4°C
(40°F)		7°C
(44°F)		6°C
(44°F)		2°C
(36°F)		-0°C
(31°F)		-3°C
(27°F)		-4°C
(24°F)

Compare climate in Longford with other places

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

Monthly average precipitation in Longford, Ireland

Longford usually has the most precipitation in February, August and December, with an average of 16 rainy days and 111 mm (4.4 inches) of precipitation per month. The driest months in Longford are January, April and May. On average, 65 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Longford. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)66 (2.6)107 (4.2)91 (3.6)55 (2.2)75 (2.9)88 (3.5)85 (3.4)131 (5.2)77 (3.0)93 (3.7)93 (3.7)96 (3.8)
Average precipitation days (≥ 1 mm)111616111216131814161516

Monthly sunshine hours in Longford, Ireland

The sunniest months in Longford are May, June and July, when the sun shines an average of 11 hours 35 minutes a day. Least sunny months in Longford: January, November and December receive an average of 2 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Longford. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours7313116727136135335129326221510883
Mean daily daylight hours8h 3m9h 47m11h 54m14h 3m15h 58m16h 58m16h 26m14h 43m12h 37m10h 29m8h 32m7h 30m

Solar UV radiation in Longford, Ireland

Longford 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 Longford UV Index data.

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