In July warmest sea in Ireland is usually observed in the following locations: Killarney, Limerick, Cork.
Table below shows the average sea water temperature for marine resorts of Ireland in July for the last three years.
| Place name | July 2026 | July 2025 | July 2024 |
|---|---|---|---|
| Killarney | 64.8°F | 62.7°F | 60.5°F |
| Limerick | 64.4°F | 62.7°F | 60.6°F |
| Cork | 62.3°F | 60.6°F | 58.8°F |
| Dublin | 61.4°F | 60.0°F | 59.1°F |
Charts below show average sea water temperature for Ireland resorts with the warmest sea in July.
You can also check other months of the year to see sea temperature of Ireland resorts at that time.
