The quality of inland bathing waters in Slovenia is high, as most are classified as “excellent”, which is better than in the majority of other EU Member States.
Database on bathing water quality, National institute of Public Health (2004–2009), Database on bathing water quality (2010–2024), Slovenian Environment Agency, 2025 (14/10/2025)
| excellent | good or sufficient | poor | Not classified | |
|---|---|---|---|---|
| 2005 | 7 | 2 | 9 | |
| 2006 | 8 | 7 | 3 | |
| 2007 | 6 | 10 | 2 | |
| 2008 | 8 | 5 | 5 | |
| 2009 | 9 | 15 | 1 | |
| 2010 | 14 | 11 | 0 | |
| 2011 | 13 | 13 | 0 | |
| 2012 | 9 | 17 | 0 | |
| 2013 | 14 | 12 | 0 | |
| 2014 | 11 | 15 | 0 | |
| 2015 | 12 | 14 | 0 | |
| 2016 | 14 | 12 | 0 | |
| 2017 | 14 | 12 | 0 | |
| 2018 | 20 | 6 | 0 | |
| 2019 | 18 | 8 | 0 | |
| 2020 | 20 | 6 | 0 | |
| 2021 | 19 | 6 | 1 | |
| 2022 | 17 | 9 | 0 | |
| 2023 | 17 | 8 | 0 | 1 |
| 2024 | 15 | 11 | 0 |
Slovenian Environment Agency, 2025 (14/10/2025)
Slovenian Environment Agency, 2025 (14/10/2025)
Slovenian Environment Agency, 2025 (14/10/2025)