County Wicklow climate

Monthly averages for Wicklow, 2021–2025 · Leinster

Wicklow is a county of two climates: the coast is dry and mild, while the Wicklow Mountains inland are among the wettest and snowiest places in Leinster, with very different weather a few miles apart.

Rain: about 1132 mm falls in a year at Wicklow, on roughly 168 days, making Wicklow the 17th wettest of the 32 counties. October is the wettest month (156 mm) and August the driest (66 mm).

Temperature: July is the warmest month, with afternoons averaging 19°C, and January the coldest, with nights averaging 3°C. Frost is rare.

Sunshine: about 2716 hours a year, the 3rd sunniest of the 32 counties. June is the sunniest month (11.6 hours a day) and December the dullest (3.1).

Compare Wicklow with its neighbours →

Rainfall

Average total rainfall each month, in millimetres. 1132 mm a year.

Temperature

Bars run from the average night-time low to the average daytime high, in °C.

Sunshine

Hours of sunshine on an average day in each month. About 2716 hours a year.

Wicklow and its neighbours
County	Rain mm/yr	Rain days	July high	January low	Sun h/yr
Wicklow	1132	168	19°C	3°C	2716
Carlow	985	162	20°C	2°C	2457
Dublin	1000	162	20°C	3°C	2750
Kildare	971	172	20°C	2°C	2476
Wexford	1201	166	20°C	3°C	2756

Recent extremes, 2021–2025

Hottest day: 27.2°C on 19 July 2022
Coldest night: −3.2°C on 12 December 2022
Wettest day: 41.2 mm on 21 July 2025
Wettest month: October 2023, 195 mm
Driest month: February 2023, 16 mm

Ireland's all-time records are on the records page.

Wicklow month by month
Month	High °C	Low °C	Rain mm	Rain days	Sun h/day	Wind km/h
January	8	3	84	12	4.0	18
February	9	5	85	13	4.7	20
March	10	5	103	15	6.9	17
April	12	6	89	14	9.2	14
May	15	9	78	14	11.1	13
June	17	11	70	11	11.6	14
July	19	13	81	16	10.6	13
August	19	13	66	13	10.1	14
September	17	11	120	13	7.9	15
October	14	9	156	16	5.8	17
November	11	7	95	15	4.1	18
December	9	5	105	15	3.1	20
Year	13	8	1132	168	2716 h	16

Figures are averages for 2021–2025 at each county town, from the ERA5 weather reanalysis via Open-Meteo. They describe typical lowland weather in each county; hills and exposed coasts are wetter and windier.

Bordering counties: Carlow · Dublin · Kildare · Wexford. All counties: rainfall, temperature, sunshine.