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Monthly climate in Dundalk, Leinster, Ireland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Dundalk features a oceanic climate (Cfb).Temperatures typically range between 5 °C (42 °F) and 16 °C (61 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 28 °C (82 °F).The average annual precipitation amounts to about 921 mm (36.3 inches) and receives 164 rainy days on the 1 mm (0.04 inches) threshold annually.Dundalk enjoys an average of 2873 hours of sunshine throughout the year, and daylight varies from 7 hours 27 minutes to 17 hours 1 minutes per day.

Monthly average temperatures in Dundalk, Leinster, Ireland §

The warmest months in Dundalk 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 5 to 6 °C (42 - 43 °F) throughout the day. On average each year, Dundalk experiences 1 days above 25 °C (77.0 °F) and 13 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dundalk, Leinster, Ireland.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 14°C
(57°F)		 14°C
(58°F)		 16°C
(61°F)		 20°C
(68°F)		 23°C
(73°F)		 28°C
(82°F)		 28°C
(82°F)		 23°C
(74°F)		 22°C
(72°F)		 19°C
(66°F)		 15°C
(59°F)		 13°C
(56°F)
Mean maximum 12°C
(54°F)		 13°C
(55°F)		 15°C
(59°F)		 17°C
(63°F)		 20°C
(69°F)		 22°C
(71°F)		 24°C
(76°F)		 22°C
(71°F)		 20°C
(69°F)		 17°C
(63°F)		 14°C
(57°F)		 12°C
(55°F)
Average high 7°C
(46°F)		 8°C
(47°F)		 10°C
(50°F)		 12°C
(53°F)		 15°C
(59°F)		 18°C
(64°F)		 19°C
(67°F)		 18°C
(65°F)		 16°C
(62°F)		 13°C
(56°F)		 10°C
(50°F)		 8°C
(47°F)
Daily mean 5°C
(42°F)		 6°C
(43°F)		 7°C
(44°F)		 8°C
(47°F)		 11°C
(53°F)		 14°C
(58°F)		 16°C
(61°F)		 15°C
(59°F)		 13°C
(56°F)		 10°C
(51°F)		 8°C
(46°F)		 6°C
(43°F)
Average low 3°C
(38°F)		 3°C
(38°F)		 4°C
(39°F)		 5°C
(41°F)		 7°C
(46°F)		 11°C
(51°F)		 12°C
(55°F)		 12°C
(54°F)		 10°C
(51°F)		 8°C
(46°F)		 5°C
(42°F)		 4°C
(40°F)
Mean minimum -3°C
(27°F)		 -2°C
(29°F)		 -1°C
(31°F)		 -0°C
(32°F)		 1°C
(35°F)		 6°C
(43°F)		 8°C
(47°F)		 8°C
(46°F)		 5°C
(42°F)		 2°C
(36°F)		 0°C
(32°F)		 -1°C
(31°F)
Minimum -5°C
(23°F)		 -4°C
(25°F)		 -4°C
(25°F)		 -2°C
(28°F)		 -1°C
(30°F)		 4°C
(40°F)		 7°C
(45°F)		 7°C
(44°F)		 3°C
(37°F)		 -0°C
(32°F)		 -3°C
(27°F)		 -3°C
(27°F)

Compare climate in Dundalk with other places

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

Monthly average precipitation in Dundalk, Leinster, Ireland §

Dundalk usually has the most precipitation in February, August and December, with an average of 15 rainy days and 96 mm (3.8 inches) of precipitation per month.The driest months in Dundalk are January, April and May. On average, 55 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dundalk, Leinster, Ireland.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 54 (2.1) 85 (3.4) 80 (3.1) 45 (1.8) 66 (2.6) 76 (3.0) 74 (2.9) 114 (4.5) 74 (2.9) 80 (3.1) 84 (3.3) 89 (3.5)
Average precipitation days (≥ 1 mm) 10 15 16 11 12 14 13 18 13 14 15 13

Monthly sunshine hours in Dundalk, Leinster, Ireland §

The sunniest months in Dundalk are May, June and July, when the sun shines an average of 12 hours 18 minutes a day.Least sunny months in Dundalk: January, November and December receive an average of 2 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dundalk, Leinster, Ireland.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 79 144 190 302 382 374 374 325 282 222 109 85
Mean daily daylight hours 8h 1m 9h 46m 11h 54m 14h 5m 16h 0m 17h 1m 16h 28m 14h 44m 12h 37m 10h 28m 8h 31m 7h 27m

Solar UV radiation in Dundalk, Leinster, Ireland §

Dundalk 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 Dundalk UV Index data.

Average daily maximum UV levels by month for Dundalk, Leinster, Ireland.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 1 2 4 5 7 8 8 7 5 3 2 1