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Monthly climate in Rosslare, Leinster, Ireland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rosslare features a oceanic climate (Cfb).Temperatures typically range between 8 °C (46 °F) and 16 °C (60 °F) through the year, but rarely can drop to -1 °C (30 °F) or can rise to as high as 19 °C (66 °F).The average annual precipitation amounts to about 1068 mm (42.0 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually.Rosslare enjoys an average of 3228 hours of sunshine throughout the year, and daylight varies from 7 hours 46 minutes to 16 hours 40 minutes per day.

Monthly average temperatures in Rosslare, Leinster, Ireland §

The warmest months in Rosslare are July, August and September, with daily mean temperatures ranging from 15 to 16 °C (59 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 8 to 8 °C (46 - 47 °F) throughout the day. On average each year, Rosslare 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 Rosslare, 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 13°C
(56°F)		 12°C
(55°F)		 12°C
(53°F)		 13°C
(55°F)		 15°C
(60°F)		 19°C
(66°F)		 19°C
(66°F)		 19°C
(66°F)		 19°C
(66°F)		 18°C
(65°F)		 15°C
(60°F)		 13°C
(56°F)
Mean maximum 12°C
(53°F)		 12°C
(53°F)		 11°C
(52°F)		 12°C
(54°F)		 15°C
(59°F)		 17°C
(62°F)		 18°C
(66°F)		 18°C
(65°F)		 17°C
(64°F)		 16°C
(62°F)		 14°C
(58°F)		 13°C
(55°F)
Average high 9°C
(48°F)		 9°C
(48°F)		 9°C
(49°F)		 10°C
(50°F)		 12°C
(54°F)		 15°C
(58°F)		 16°C
(62°F)		 17°C
(62°F)		 16°C
(61°F)		 14°C
(57°F)		 11°C
(53°F)		 10°C
(50°F)
Daily mean 8°C
(46°F)		 8°C
(46°F)		 8°C
(47°F)		 9°C
(48°F)		 11°C
(52°F)		 14°C
(57°F)		 15°C
(60°F)		 16°C
(60°F)		 15°C
(59°F)		 13°C
(55°F)		 10°C
(51°F)		 9°C
(48°F)
Average low 7°C
(44°F)		 7°C
(44°F)		 7°C
(44°F)		 8°C
(46°F)		 10°C
(50°F)		 13°C
(55°F)		 14°C
(58°F)		 15°C
(59°F)		 13°C
(57°F)		 11°C
(53°F)		 9°C
(48°F)		 8°C
(46°F)
Mean minimum 3°C
(38°F)		 3°C
(38°F)		 3°C
(38°F)		 4°C
(40°F)		 7°C
(45°F)		 10°C
(50°F)		 12°C
(54°F)		 12°C
(54°F)		 10°C
(50°F)		 8°C
(47°F)		 5°C
(42°F)		 4°C
(40°F)
Minimum 2°C
(35°F)		 2°C
(35°F)		 -1°C
(30°F)		 2°C
(37°F)		 5°C
(41°F)		 9°C
(48°F)		 11°C
(52°F)		 11°C
(52°F)		 9°C
(48°F)		 6°C
(43°F)		 4°C
(40°F)		 2°C
(36°F)

Compare climate in Rosslare with other places

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

Monthly average precipitation in Rosslare, Leinster, Ireland §

Rosslare usually has the most precipitation in October, November and December, with an average of 17 rainy days and 129 mm (5.1 inches) of precipitation per month.The driest months in Rosslare are April, May and July. On average, 60 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rosslare, 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) 66 (2.6) 103 (4.1) 88 (3.5) 60 (2.4) 57 (2.3) 70 (2.8) 62 (2.4) 89 (3.5) 84 (3.3) 118 (4.6) 139 (5.5) 131 (5.1)
Average precipitation days (≥ 1 mm) 13 16 15 8 9 11 11 11 13 16 18 17

Monthly sunshine hours in Rosslare, Leinster, Ireland §

The sunniest months in Rosslare are May, June and July, when the sun shines an average of 13 hours 30 minutes a day.Least sunny months in Rosslare: January, November and December receive an average of 3 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rosslare, 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 97 154 218 325 410 411 420 371 317 250 138 111
Mean daily daylight hours 8h 17m 9h 55m 11h 54m 13h 57m 15h 44m 16h 40m 16h 10m 14h 34m 12h 36m 10h 34m 8h 44m 7h 46m

Solar UV radiation in Rosslare, Leinster, Ireland §

Rosslare 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 Rosslare UV Index data.

Average daily maximum UV levels by month for Rosslare, 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 4 2 1