Lake swimming in Slovakia: 2025 water quality
Slovakia reported 40 lake bathing waters for the 2025 season. 70% were classified Excellent — the same as the 70% for all 40 bathing waters in the country — and 0 were Poor. 8 sites have been Excellent in every season from 2015 to 2025. Among the 19 countries with at least 30 lake bathing waters, Slovakia ranks 16 by Excellent share.
lake bathing waters
Excellent in 2025
Poor in 2025
Find the nearest Excellent lake to you →
Map of lake bathing waters
How lake bathing waters in Slovakia rated since 2015
Counts for the sites in today’s 2025 inventory; the Excellent share is calculated over classified sites only.
| Season | Classified | Excellent | Excellent share | Poor |
|---|---|---|---|---|
| 2025 | 30 | 28 | 93.3% | 0 |
| 2024 | 30 | 27 | 90% | 0 |
| 2023 | 30 | 23 | 76.7% | 0 |
| 2022 | 29 | 19 | 65.5% | 0 |
| 2021 | 29 | 16 | 55.2% | 1 |
| 2020 | 28 | 18 | 64.3% | 0 |
| 2019 | 29 | 20 | 69% | 1 |
| 2018 | 29 | 18 | 62.1% | 1 |
| 2017 | 29 | 19 | 65.5% | 1 |
| 2016 | 29 | 21 | 72.4% | 0 |
| 2015 | 27 | 16 | 59.3% | 1 |
Most consistent Excellent lakes
8 sites were Excellent in all eleven seasons. Ordered by the length of the unbroken Excellent run ending in 2025.
- LIPTOVSKÁ MARA 11 seasons
- RUŽÍN 11 seasons
- VEĽKÁ DOMAŠA - TÍŠAVA 11 seasons
- VEĽKÉ KOLPAŠSKÉ JAZERO 11 seasons
- ZEMPLÍNSKA ŠÍRAVA - HÔRKA 11 seasons
- ZEMPLÍNSKA ŠÍRAVA - KAMENEC 11 seasons
- ZEMPLÍNSKA ŠÍRAVA - MEDVEDIA HORA 11 seasons
- ZEMPLÍNSKA ŠÍRAVA - PAĽKOV 11 seasons
- DRIEŇOK 10 seasons
- ZEMPLÍNSKA ŠÍRAVA - BIELA HORA 10 seasons
- VEĽKÁ DOMAŠA - VALKOV 7 seasons
- IVANKA PRI DUNAJI 6 seasons
- POČÚVADLIANSKE JAZERO 6 seasons
- VEĽKÉ RICHNAVSKÉ JAZERO 6 seasons
- ŠULIANSKE JAZERO 4 seasons
- VAJNORSKÉ JAZERO 4 seasons
- VEĽKÁ DOMAŠA - POĽANY 4 seasons
- DOLNO HODRUŠSKÉ JAZERO 3 seasons
- PLÁŽ ORMET 3 seasons
- SLNEČNÉ JAZERÁ - JUH 3 seasons
- VINDŠACHTSKÉ JAZERO 3 seasons
- VEĽKÁ DOMAŠA - DOBRÁ PLÁŽ 2 seasons
- VEĽKÁ DOMAŠA - HOLČÍKOVCE 2 seasons
- VEĽKÁ DOMAŠA - NOVÁ KELČA 2 seasons
- VEĽKÁ DOMAŠA - NOVÁ KELČA - POLOSTROV KRYM 2 seasons
- ZLATÉ PIESKY - PLÁŽ 2 seasons
- VINIANSKE JAZERO 1 season
- ZELENÁ VODA 1 season
Lakes rated Poor in 2025
None of the 40 lake bathing waters in Slovakia was classified Poor in 2025.
Changes from 2024 to 2025
Improved (2)
- VINIANSKE JAZERO Good → Excellent
- ZELENÁ VODA Good → Excellent
Declined (1)
- POD BUKOVCOM Excellent → Good
Near which major cities?
Sites within 60 km (straight line) of a major city covered by our city guides:
- Bratislava 9 lake bathing waters within 60 km
Lakes compared across Europe
| # | Country | Sites | Excellent | Poor |
|---|---|---|---|---|
| 1 | Austria | 254 | 96.9% | 1 |
| 2 | Finland | 211 | 95.7% | 0 |
| 3 | Denmark | 123 | 94.3% | 0 |
| 4 | Germany | 1,893 | 91.8% | 3 |
| 5 | Lithuania | 80 | 91.3% | 0 |
| 6 | Czechia | 62 | 90.3% | 0 |
| 7 | Portugal | 49 | 89.8% | 1 |
| 8 | Italy | 673 | 88.4% | 5 |
| 9 | France | 845 | 86.7% | 15 |
| 10 | Switzerland | 135 | 86.7% | 4 |
| 11 | Sweden | 210 | 82.4% | 6 |
| 12 | Estonia | 30 | 80% | 0 |
| 13 | Spain | 109 | 79.8% | 4 |
| 14 | Belgium | 77 | 79.2% | 1 |
| 15 | Netherlands | 587 | 70.5% | 26 |
| 16 | Slovakia | 40 | 70% | 0 |
| 17 | Hungary | 247 | 69.6% | 3 |
| 18 | Croatia | 34 | 67.6% | 0 |
| 19 | Poland | 489 | 60.1% | 5 |
Countries with at least 30 lake bathing waters. Networks differ in size and in how sites are designated, so this is a descriptive comparison, not a safety ranking.
Quick answers
- How many lake bathing waters in Slovakia are rated Excellent?
- 28 of 40 (70%) in the 2025 EEA classification.
- Which lakes in Slovakia have the best long-term record?
- 8 sites were Excellent in every season from 2015 to 2025, for example LIPTOVSKÁ MARA, RUŽÍN, VEĽKÁ DOMAŠA - TÍŠAVA. See the full list.
- Can I check current conditions?
- The annual class is not a live status. Current results and bans are published on Kvalita vody na kúpanie (ÚVZ SR). Each site page on BathingWaterFinder also shows a weather forecast, including heavy-rain warnings.
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