Rathmullan
Donegal County Council
No active EPA restriction shown
EPA alert data last synced 19 Oct 2026, 13:50.
Current restrictions and beach signage take priority over annual classifications and individual sample results. Conditions can change between samples.
EPA annual assessment
Rathmullan is classified as achieving Good Water Quality in 2025 based on the assessment of bacteriological results for the period 2022 to 2025. Rathmullan has achieved a Good Water Quality rating for the four consecutive years 2022 to 2025. Annual water quality ratings are generally calculated using monitoring results over a four-year period and are assessed against stringent bacterial limits to protect bather health.
Annual water quality history
Recent water samples
| Date | Sample status | E. coli | Intestinal enterococci |
|---|---|---|---|
| 8 Sep 2026 | Excellent | 63 | 3 |
| 25 Aug 2026 | Excellent | 10 | 2 |
| 18 Aug 2026 | Excellent | 10 | <1 |
| 11 Aug 2026 | Excellent | 10 | 1 |
| 28 Jul 2026 | Excellent | 121 | 30 |
| 14 Jul 2026 | Excellent | 20 | 2 |
| 7 Jul 2026 | Excellent | <10 | <1 |
| 23 Jun 2026 | Excellent | <10 | 3 |
| 9 Jun 2026 | Excellent | <10 | <1 |
| 2 Jun 2026 | Excellent | 10 | 6 |
| 26 May 2026 | Excellent | <10 | 2 |
Facilities & access
About this bathing water
Rathmullan beach consists of a sandy beach in Lough Swilly, which is confined by Rathmullan pier to the South and runs up past Kinnegar to the Glebe outcrop to the North. Rathmullan beach supports a wide variety of plant and wildlife species including otters. The Rathmullan Wood Nature Reserve contains a wide variety of trees. Activities at Rathmullan beach include swimming, kayaking, boating, sailing, power boating, jet skiing (outside the designated area), diving and other land based activities on the beach. The designated bathing area is approx. 0.142km2 and the extent along the water is approximately is 1380m. There is a deep gradient off Rathmullan Beach with the water depth reaching 1m approx. 10m from the water line.
Official information
Managed by Donegal County Council.
Open EPA beach profile