County Cork climate
Monthly averages for Cork, 2021–2025 · Munster
Cork, the largest county, ranges from the mild, wet and windy south-west coast to the drier, sunnier harbour and east. Frost is rare on the coast, and the Cork and Kerry hills have some of Ireland's heaviest rain.
Rain: about 1345 mm falls in a year at Cork, on roughly 173 days, making Cork the 6th wettest of the 32 counties. October is the wettest month (204 mm) and June the driest (72 mm).
Temperature: July is the warmest month, with afternoons averaging 20°C, and January the coldest, with nights averaging 3°C. Frost is rare.
Sunshine: about 2512 hours a year, the 8th sunniest of the 32 counties. May is the sunniest month (10.1 hours a day) and December the dullest (3.2).
Rainfall
Average total rainfall each month, in millimetres. 1345 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 2512 hours a year.
Recent extremes, 2021–2025
- Hottest day: 29.0°C on 13 August 2022
- Coldest night: −4.7°C on 19 January 2024
- Wettest day: 68.3 mm on 27 October 2021
- Wettest month: October 2022, 293 mm
- Driest month: July 2022, 24 mm
Ireland's all-time records are on the records page.
| Month | High °C | Low °C | Rain mm | Rain days | Sun h/day | Wind km/h |
|---|---|---|---|---|---|---|
| January | 8 | 3 | 95 | 12 | 4.1 | 14 |
| February | 10 | 5 | 139 | 15 | 4.6 | 17 |
| March | 11 | 5 | 116 | 15 | 6.3 | 15 |
| April | 13 | 6 | 77 | 13 | 8.7 | 14 |
| May | 16 | 8 | 95 | 14 | 10.1 | 13 |
| June | 18 | 10 | 72 | 13 | 9.6 | 13 |
| July | 20 | 12 | 94 | 13 | 9.5 | 13 |
| August | 20 | 12 | 81 | 14 | 9.5 | 13 |
| September | 17 | 11 | 130 | 14 | 7.3 | 14 |
| October | 14 | 9 | 204 | 18 | 5.2 | 15 |
| November | 11 | 6 | 119 | 16 | 4.3 | 15 |
| December | 9 | 5 | 123 | 16 | 3.2 | 17 |
| Year | 14 | 8 | 1345 | 173 | 2512 h | 14 |
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: Kerry · Limerick · Tipperary · Waterford. All counties: rainfall, temperature, sunshine.