County Galway climate

Monthly averages for Galway, 2021–2025 · Connacht

Galway stretches from the Atlantic coast of Connemara, one of the wettest and windiest places in Ireland, to the flat, drier farmland east of Lough Corrib. Galway city is mild and breezy with rain on most days in winter.

Rain: about 1424 mm falls in a year at Galway, on roughly 198 days, making Galway the 4th wettest of the 32 counties. October is the wettest month (176 mm) and May the driest (83 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 2451 hours a year, the 15th sunniest of the 32 counties. May is the sunniest month (10.5 hours a day) and December the dullest (3.0).

Compare Galway with its neighbours →

Rainfall

Average total rainfall each month, in millimetres. 1424 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 2451 hours a year.

Galway and its neighbours
County	Rain mm/yr	Rain days	July high	January low	Sun h/yr
Galway	1424	198	19°C	3°C	2451
Clare	1328	199	19°C	3°C	2378
Mayo	1442	209	18°C	3°C	2280
Offaly	1064	178	19°C	2°C	2409
Roscommon	1176	184	19°C	3°C	2326
Tipperary	1019	173	19°C	2°C	2457

Recent extremes, 2021–2025

Hottest day: 28.6°C on 18 July 2022
Coldest night: −3.2°C on 6 January 2021
Wettest day: 41.8 mm on 23 November 2024
Wettest month: October 2022, 214 mm
Driest month: April 2021, 22 mm

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

Galway month by month
Month	High °C	Low °C	Rain mm	Rain days	Sun h/day	Wind km/h
January	8	3	110	14	3.9	17
February	10	5	120	18	4.4	21
March	11	5	115	16	5.8	17
April	13	6	88	14	8.5	15
May	16	9	83	16	10.5	14
June	18	11	103	17	9.5	15
July	19	13	116	17	9.2	13
August	19	13	121	17	9.2	15
September	17	11	110	15	7.2	15
October	14	10	176	20	5.2	17
November	11	7	134	17	4.0	17
December	9	5	148	17	3.0	19
Year	14	8	1424	198	2451 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: Clare · Mayo · Offaly · Roscommon · Tipperary. All counties: rainfall, temperature, sunshine.