High Bathing Water Quality Maintained In 2025.

• Bathing water quality remained high in 2025, with 98 per cent of sites (150 of 153) meeting or exceeding the minimum required standard.
• 120 bathing sites (78%) were classified as ‘Excellent’, down slightly from 122 in 2024.
• Just one bathing water in Ireland is now classified as ‘Poor’, down from two in 2024.
• Heavy rainfall events are becoming more frequent during the bathing season, with an increased risk of contamination from wastewater, urban and agricultural sources.
• Local authorities must urgently adopt climate‑resilient approaches to managing the pressures affecting bathing water quality.

The Environmental Protection Agency (EPA) has today published the Bathing Water Quality in Ireland report for 2025 which shows that water quality at most of Ireland’s bathing waters was of a high standard. 78% of bathing sites have ‘Excellent’ water quality while 98 per cent meet or exceed the minimum standard of ‘Sufficient’.

Incidents arising from urban wastewater were the most frequently reported cause of bathing water issues by local authorities, leading to temporary beach closures and restrictions throughout the season. Runoff from agricultural land, dog fouling and misconnections (where wastewater from homes or businesses is wrongly connected to rainwater drains) also contributed to bathing water quality issues.

Intense rainfall events occurred more frequently and across the entire bathing season in 2025, resulting in increased runoff from multiple sources. The number of bathing water warnings, issued prior to heavy rainfall and designed to protect bather’s health, nearly doubled in 2025.

Commenting on the report, Roni Hawe, Director of the EPA’s Office of Evidence and Assessment, said: “We are pleased to report that bathing waters continued to achieve a high standard of quality nationally in 2025. However, the greater frequency of heavy rainfall events throughout the bathing season highlights an increased risk to people’s health when swimming after heavy rainfall. These conditions can result in short‑term pollution which must be effectively managed if current high standards are to be maintained into the future. Local authorities need to strengthen their understanding of rainfall‑related pressures and put appropriate, climate-resilient measures in place to protect bather health”.

The ‘Poor’ classification at Dún Laoghaire Baths (Co. Dublin) was caused by wastewater overflows and dog fouling. Dún Laoghaire Rathdown County Council have produced a management plan which outlines actions to manage pressures and improve bathing water quality at this location. Targeted actions by Uisce Eireann and the local authorities at Lady’s Bay, Buncrana (Co. Donegal) and Sandymount Strand (Co. Dublin) has led to improvements in bathing water quality for 2025. Actions included investigation of pollution sources and upgrades to wastewater infrastructure at these two locations.

Two new bathing waters were officially identified in 2025: Belmullet Tidal Pool (Co. Mayo) and Dún Laoghaire Baths (Co. Dublin). Dún Laoghaire Baths received its first classification in 2025, while Belmullet Tidal Pool requires at least one more season of sampling before classification can be assigned.

The report Bathing Water Quality in Ireland 2025 is now available on the EPA website, HERE.

Throughout the bathing water season (1st June to 15th September), water quality information and details of any incidents affecting bathing waters are displayed on the www.beaches.ie website. Some local authorities also carry out water quality monitoring outside the Bathing water season and where available, these data are also shared on beaches.ie for information purposes.

Swimmers should always check www.beaches.ie, and the signage at the beach, for the latest water quality information. Swimmers should remember to follow the 48 hour rule which is to avoid contact with open water for at least 48 hours after heavy rainfall to protect health.