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Monthly climate in Cavan, Ulster, Ireland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Cavan features a oceanic climate (Cfb).Temperatures typically range between 5 °C (42 °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 29 °C (84 °F).The average annual precipitation amounts to about 994 mm (39.1 inches) and receives 172 rainy days on the 1 mm (0.04 inches) threshold annually.Cavan enjoys an average of 2653 hours of sunshine throughout the year, and daylight varies from 7 hours 26 minutes to 17 hours 2 minutes per day.

Monthly average temperatures in Cavan, Ulster, Ireland §

The warmest months in Cavan 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 5 to 6 °C (42 - 43 °F) throughout the day. On average each year, Cavan experiences 2 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Cavan, Ulster, 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)		 15°C
(60°F)		 17°C
(62°F)		 21°C
(69°F)		 24°C
(76°F)		 29°C
(84°F)		 28°C
(83°F)		 24°C
(75°F)		 24°C
(76°F)		 20°C
(68°F)		 15°C
(59°F)		 13°C
(56°F)
Mean maximum 12°C
(54°F)		 12°C
(55°F)		 14°C
(58°F)		 17°C
(64°F)		 21°C
(71°F)		 22°C
(72°F)		 24°C
(76°F)		 22°C
(72°F)		 21°C
(69°F)		 17°C
(63°F)		 14°C
(57°F)		 12°C
(54°F)
Average high 7°C
(46°F)		 8°C
(47°F)		 10°C
(49°F)		 12°C
(53°F)		 15°C
(59°F)		 17°C
(63°F)		 19°C
(66°F)		 18°C
(64°F)		 16°C
(61°F)		 13°C
(55°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
(57°F)		 16°C
(60°F)		 15°C
(59°F)		 13°C
(56°F)		 10°C
(51°F)		 7°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)		 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)		 4°C
(40°F)
Mean minimum -2°C
(29°F)		 -2°C
(30°F)		 -1°C
(31°F)		 -0°C
(32°F)		 2°C
(35°F)		 5°C
(42°F)		 8°C
(47°F)		 8°C
(46°F)		 5°C
(40°F)		 2°C
(37°F)		 -0°C
(32°F)		 -0°C
(32°F)
Minimum -4°C
(25°F)		 -5°C
(23°F)		 -4°C
(24°F)		 -2°C
(29°F)		 -1°C
(30°F)		 5°C
(41°F)		 7°C
(44°F)		 6°C
(43°F)		 2°C
(35°F)		 -0°C
(32°F)		 -3°C
(27°F)		 -3°C
(28°F)

Compare climate in Cavan with other places

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

Monthly average precipitation in Cavan, Ulster, Ireland §

Cavan usually has the most precipitation in February, August and December, with an average of 15 rainy days and 103 mm (4.1 inches) of precipitation per month.The driest months in Cavan are January, April and May. On average, 61 mm (2.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cavan, Ulster, 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) 61 (2.4) 96 (3.8) 85 (3.4) 52 (2.0) 69 (2.7) 88 (3.5) 81 (3.2) 121 (4.8) 73 (2.9) 85 (3.3) 88 (3.5) 93 (3.7)
Average precipitation days (≥ 1 mm) 11 15 17 11 13 15 13 18 14 15 16 14

Monthly sunshine hours in Cavan, Ulster, Ireland §

The sunniest months in Cavan are May, June and July, when the sun shines an average of 11 hours 31 minutes a day.Least sunny months in Cavan: January, November and December receive an average of 2 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cavan, Ulster, 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 73 133 168 272 360 351 348 289 261 209 104 79
Mean daily daylight hours 8h 0m 9h 46m 11h 54m 14h 5m 16h 1m 17h 2m 16h 29m 14h 44m 12h 38m 10h 28m 8h 30m 7h 26m

Solar UV radiation in Cavan, Ulster, Ireland §

Cavan 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 Cavan UV Index data.

Average daily maximum UV levels by month for Cavan, Ulster, 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