Mayo, Ireland
County page for 20 named lakes in Ireland. Official surface phosphorus, chlorophyll-a, and Secchi — not a swim-safety class and not a LakeQuality letter.
Lake map
Loading map…
Named lakes
| Lake | Place | Total phosphorus | Chlorophyll-a | Secchi | Year |
|---|---|---|---|---|---|
| Lough Acorrymore | Mayo | 18 µg/L | 1.5 µg/L | — | 2022 |
| Lough Aille | Mayo | 19 µg/L | 2.8 µg/L | — | 2022 |
| Lough Ballin | Mayo | 38 µg/L | 9.4 µg/L | — | 2022 |
| Lough Beltra | Mayo | 14 µg/L | 2.4 µg/L | — | 2023 |
| Lough Carra | Mayo | 12 µg/L | 2.2 µg/L | — | 2023 |
| Lough Carrowmore | Mayo | 19 µg/L | 4.4 µg/L | — | 2023 |
| Lough Castlebar | Mayo | 17 µg/L | 2.5 µg/L | — | 2022 |
| Lough Conn | Mayo | 15 µg/L | 1.8 µg/L | — | 2022 |
| Lough Cross | Mayo | 46 µg/L | 7.9 µg/L | — | 2022 |
| Lough Cullin | Mayo | 14 µg/L | 1.7 µg/L | — | 2023 |
| Lough Doo | Mayo | 12 µg/L | 1.6 µg/L | — | 2023 |
| Lough Feeagh | Mayo | 32 µg/L | 1.4 µg/L | — | 2022 |
| Lough Glencullin | Mayo | 23 µg/L | 1.7 µg/L | — | 2023 |
| Lough Keel | Mayo | 16 µg/L | 3.7 µg/L | — | 2022 |
| Lough Knappaghbeg | Mayo | 17 µg/L | 4.6 µg/L | — | 2022 |
| Lough Levally | Mayo | 22 µg/L | 2.8 µg/L | — | 2022 |
| Lough Mask | Mayo | 14 µg/L | 1.3 µg/L | — | 2022 |
| Lough Moher | Mayo | 17 µg/L | 2.4 µg/L | — | 2022 |
| Lough Urlaur | Mayo | 13 µg/L | 2.3 µg/L | — | 2023 |
| Lough Washpool | Mayo | 18 µg/L | 1.5 µg/L | — | 2022 |
Where to stay near Mayo, Ireland
Lakeside cabins, hotels, and vacation rentals near Mayo, Ireland — live availability from Booking.com, Vrbo and Expedia.
Top-rated places to stay near Mayo, Ireland
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Mayo, Ireland?
Get lake water-quality report cards plus the best cabin & lodging deals near Mayo, Ireland — straight to your inbox. No spam, unsubscribe anytime.