Bathing water quality in Opole, Poland
Opole has 15 official bathing waters in the EEA dataset for the 2025 season (12 lake and 3 river). 60% were classified Excellent — 1.3 points above the 58.7% across Poland — and 0 were Poor.
Jakość wody w kąpieliskach: Opolskie
Spośród 15 oficjalnych kąpielisk UE (Opolskie) 60% miało w 2025 r. klasyfikację „doskonała”; liczba kąpielisk z oceną „niedostateczna”: 0.
official bathing waters
Excellent in 2025
Poor in 2025
Map of official bathing waters in Opole
Opole by subregion
Sites are placed in the Eurostat NUTS 3 subregions that contain their reported coordinates.
| Subregion | Sites | Excellent | Good | Sufficient | Poor | Not classified |
|---|---|---|---|---|---|---|
| Opolski | 10 | 6 (60%) | 2 | 1 | 0 | 1 |
| Nyski | 5 | 3 (60%) | 0 | 1 | 0 | 1 |
Sea, lakes and rivers in Opole
| Water type | Sites | Excellent | Good | Sufficient | Poor | Not classified |
|---|---|---|---|---|---|---|
| Lake | 12 | 7 (58.3%) | 2 | 1 | 0 | 2 |
| River | 3 | 2 (66.7%) | 0 | 1 | 0 | 0 |
Coastal waters are assessed against stricter bacterial limits than lakes and rivers but are diluted far more; see how the classes are calculated.
Most consistent Excellent sites
Ordered by the length of the unbroken Excellent run ending in 2025.
- BOLKO 5 seasons · Opolski
- PRZYSTAŃ WODNA W NOWYCH SIOŁKOWICACH 5 seasons · Opolski
- STODOŁA 5 seasons · Opolski
- BALATON 4 seasons · Opolski
- JEZIORO ŚREDNIE 4 seasons · Opolski
- KĄPIELISKO POŁOŻONE NA TERENIE OŚRODKA REKREACYJNO-WYPOCZYNKOWEGO W PIETROWICACH 3 seasons · Nyski
- KĄPIELISKO JEZIORA NYSKIEGO NA TERENIE OŚRODKA REKREACJI W SKOROCHOWIE 2 seasons · Nyski
- Jezioro Srebrne 1 season · Opolski
- KĄPIELISKO W LEWINIE BRZESKIM 1 season · Nyski
Rated Poor in 2025
None of the 15 official bathing waters in Opole was classified Poor in 2025.
Changes from 2024 to 2025
Improved (2)
- KĄPIELISKO W LEWINIE BRZESKIM Good → Excellent
- ZALEW KLUCZBORK Poor → Sufficient
Declined (2)
- MALINA Excellent → Good
- ZIELONA ZATOKA Good → Sufficient
How Opole 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 | 13 | 9 | 69.2% | 0 |
| 2024 | 12 | 8 | 66.7% | 1 |
| 2023 | 12 | 6 | 50% | 0 |
| 2022 | 12 | 7 | 58.3% | 2 |
| 2021 | 8 | 4 | 50% | 2 |
| 2020 | 4 | 0 | 0% | 2 |
| 2019 | 2 | 0 | 0% | 0 |
| 2018 | 2 | 1 | 50% | 0 |
| 2017 | 2 | 2 | 100% | 0 |
| 2016 | 2 | 2 | 100% | 0 |
| 2015 | 2 | 2 | 100% | 0 |
All 15 official bathing waters in Opole
Grouped by subregion, alphabetical within each group. Open a site for its 2015–2025 history, nearby alternatives, weather forecast and the national profile link.
Download all 15 sites as CSV (classes 2015–2025, coordinates, nearest place; EEA data, CC BY 4.0)
Opolski 10 sites · 60% Excellent
- BALATON · Dobrzeń Wielki Excellent Excellent 4 seasons in a row
- BOLKO · Winów Excellent Excellent 5 seasons in a row
- CENTRALNE · Reńska Wieś Good
- Jezioro Srebrne · Januszkowice Excellent
- JEZIORO ŚREDNIE · Chrząstowice Excellent Excellent 4 seasons in a row
- MALINA · Winów Good Excellent → Good since 2024
- Plaża Jurajska · Ozimek Not classified
- PRZYSTAŃ WODNA W NOWYCH SIOŁKOWICACH · Popielów Excellent Excellent 5 seasons in a row
- STODOŁA · Reńska Wieś Excellent Excellent 5 seasons in a row
- ZALEW KLUCZBORK Sufficient Poor → Sufficient since 2024
Nyski 5 sites · 60% Excellent
- KĄPIELISKO JEZIORA NYSKIEGO NA TERENIE OŚRODKA REKREACJI W SKOROCHOWIE · Nysa Excellent Excellent 2 seasons in a row
- KĄPIELISKO POŁOŻONE NA TERENIE OŚRODKA REKREACYJNO-WYPOCZYNKOWEGO W PIETROWICACH Excellent Excellent 3 seasons in a row
- KĄPIELISKO W LEWINIE BRZESKIM · Lewin Brzeski Excellent Good → Excellent since 2024
- Proserwy · Grodków Not classified
- ZIELONA ZATOKA · Biała Sufficient Good → Sufficient since 2024
Compared with other voivodeships in Poland
| # | Voivodeship | Sites | Excellent | Poor |
|---|---|---|---|---|
| 1 | Kuyavia-Pomerania | 41 | 75.6% | 0 |
| 2 | Pomerania | 150 | 72.7% | 0 |
| 3 | Warmia-Masuria | 56 | 66.1% | 0 |
| 4 | Greater Poland | 109 | 65.1% | 0 |
| 5 | Lublin | 39 | 61.5% | 4 |
| 6 | West Pomerania | 147 | 61.2% | 0 |
| 7 | Opole | 15 | 60% | 0 |
| 8 | Lubusz | 36 | 55.6% | 0 |
| 9 | Lower Silesia | 23 | 52.2% | 0 |
| 10 | Silesia | 26 | 46.2% | 1 |
| 11 | Masovia (outside Warsaw) | 31 | 38.7% | 1 |
| 12 | Łódź | 24 | 33.3% | 4 |
| 13 | Podlaskie | 21 | 28.6% | 0 |
| 14 | Holy Cross (Świętokrzyskie) | 19 | 26.3% | 2 |
| 15 | Lesser Poland | 20 | 20% | 2 |
Voivodeships with at least 15 official bathing waters. Size, water type and how densely sites are designated differ, so the table is context rather than a verdict.
Quick answers
- How many bathing waters in Opole were rated Excellent in 2025?
- 9 of 15 (60%) in the official EEA 2025 classification; 2 were Good, 2 Sufficient and 0 Poor, and 2 had no class. That ranks Opole 7 of 15 Poland voivodeships by Excellent share.
- Which subregion of Opole has the highest share of Excellent sites?
- Opolski: 60% of its 10 sites were Excellent in 2025. Only subregions with at least five sites are compared; see the full table.
- Which beaches and lakes in Opole have the best long-term record?
- The longest current Excellent run is 5 seasons (BOLKO).
- Were any bathing waters in Opole rated Poor?
- No. None was classified Poor in 2025.
- Where do I check whether swimming is allowed today?
- On Serwis Kąpieliskowy (GIS) (State Sanitary Inspection (GIS)). Temporary bans, pollution alerts and closures are published there and on signs at the water, not in the annual EEA class.
Poland overview · All voivodeships of Poland · Bathing season dates
Sources and method
Bathing-water records: European Environment Agency (EEA), data and coordinates reported by Poland, licensed CC BY 4.0. Region and subregion boundaries: Eurostat NUTS 2024 (© EuroGeographics for the administrative boundaries). Place names: GeoNames (CC BY 4.0). A site belongs to the area that contains its reported coordinates; a site up to 10 km off the generalised coastline is placed in the nearest area of Poland. Counts, shares and rankings are calculated by BathingWaterFinder from the official records.