Czechia · lake bathing waters
Lake swimming in Czechia: 2025 water quality
Czechia reported 62 lake bathing waters for the 2025 season. 90.3% were classified Excellent — 10.6 points above the 79.7% for all 153 bathing waters in the country — and 0 were Poor. 31 sites have been Excellent in every season from 2015 to 2025. Among the 19 countries with at least 30 lake bathing waters, Czechia ranks 6 by Excellent share.
62
lake bathing waters
90.3%
Excellent in 2025
0
Poor in 2025
Annual, not live: the 2025 class summarises several seasons of sampling. It does not show today’s pollution, algae or bans.
Find the nearest Excellent lake to you →
Map of lake bathing waters
Excellent 56Good 5Poor 0Not classified 1
How lake bathing waters in Czechia 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 | 61 | 56 | 91.8% | 0 |
| 2024 | 57 | 48 | 84.2% | 0 |
| 2023 | 59 | 51 | 86.4% | 0 |
| 2022 | 54 | 48 | 88.9% | 0 |
| 2021 | 57 | 53 | 93% | 0 |
| 2020 | 56 | 55 | 98.2% | 0 |
| 2019 | 57 | 56 | 98.2% | 0 |
| 2018 | 55 | 54 | 98.2% | 0 |
| 2017 | 55 | 54 | 98.2% | 0 |
| 2016 | 53 | 52 | 98.1% | 0 |
| 2015 | 54 | 49 | 90.7% | 0 |
Most consistent Excellent lakes
31 sites were Excellent in all eleven seasons. Ordered by the length of the unbroken Excellent run ending in 2025.
- KOUPALIŠTĚ JESENICE - DŘENICE 11 seasons
- MÁCHOVO JEZERO - BORNÝ 11 seasons
- MÁCHOVO JEZERO - DOKSY 11 seasons
- MÁCHOVO JEZERO - KLŮČEK 11 seasons
- MÁCHOVO JEZERO - PLÁŽ HOTELU PORT 11 seasons
- MÁCHOVO JEZERO - PLÁŽ STARÉ SPLAVY 11 seasons
- RYBNÍK VELKÉ DÁŘKO 11 seasons
- VN BRNĚNSKÁ PŘEHRADA - KOZÍ HORKA 11 seasons
- VN BRNĚNSKÁ PŘEHRADA - RAKOVEC 11 seasons
- VN BRNĚNSKÁ PŘEHRADA - ROKLE 11 seasons
- VN BRNĚNSKÁ PŘEHRADA - SOKOLSKÉ KOUPALIŠTĚ 11 seasons
- VN HRACHOLUSKY - HRÁZ 11 seasons
- VN HRACHOLUSKY - NA RADOSTI 11 seasons
- VN LIPNO - PLÁŽ ČERNÁ V POŠUMAVÍ 11 seasons
- VN NECHRANICE - TUŠIMICE 11 seasons
- VN ORLÍK - ATC RADAVA 11 seasons
- VN ORLÍK - LAVIČKY 11 seasons
- VN ORLÍK - PODSKALÍ 11 seasons
- VN ORLÍK - POPELÍKY 11 seasons
- VN ORLÍK - TRHOVKY 11 seasons
- VN PASTVINY - ŠLECHTŮV PALOUK 11 seasons
- VN SEČ SEMTÍN 11 seasons
- VN SKALKA - U ATC PODHOŘÍ 11 seasons
- VN SLEZSKÁ HARTA - NOVÁ PLÁŇ 11 seasons
- VN TĚRLICKO - PACALŮVKA 11 seasons
- VN TĚRLICKO - POD MOTELEM 11 seasons
- VN TĚRLICKO - TĚRLICKO STŘED 11 seasons
- VN ŽERMANICE - DOLNÍ DOMASLAVICE 11 seasons
- VN ŽERMANICE - LUČINA 11 seasons
- VN ŽERMANICE - SOBĚŠOVICE 11 seasons
- ZBYTKOVÁ JÁMA DOLU BARBORA 11 seasons
- VN SEČ HOJEŠÍN 10 seasons
- VN SLAPY - ŽUPANOVICE 10 seasons
- VN OLEŠNÁ - MÍSTEK 9 seasons
- VN OLEŠNÁ - PALKOVICE 9 seasons
- JEZERO MILADA 7 seasons
- VN BRNĚNSKÁ PŘEHRADA - OSADA 7 seasons
- VN NECHRANICE - KEMP U HRÁZE 7 seasons
- VN ROZKOŠ – VELKÁ JESENICE 6 seasons
- STAŇKOVSKÝ RYBNÍK - JIŽNÍ BŘEH 3 seasons
- VN JESENICE - U ATC RYBÁŘSKÁ BAŠTA 3 seasons
- VN JESENICE - U ATC VÁCLAV 3 seasons
- VN LETOVICE - VRANOVÁ 3 seasons
- VRANOVSKÁ PŘEHRADA - PLÁŽ VRANOV 3 seasons
- JEZERO MOST - PLÁŽ LEVÁ ČÁST 2 seasons
- JEZERO MOST - PLÁŽ PRAVÁ ČÁST 2 seasons
- VN SLAPY - ŽIVOHOŠŤ 2 seasons
- DALEŠICKÁ PŘEHRADA - KONĚŠÍNSKÁ PLÁŽ 1 season
- VN PASTVINY - PANELOVKA 1 season
- VN PLUMLOV 1 season
- VN SEČ ÚSTUPKY 1 season
- VN SLAPY - MĚŘÍN 1 season
- VN SLAPY - NOVÁ RABYNĚ 1 season
- VN SLAPY - NOVÁ ŽIVOHOŠŤ 1 season
- VN SLAPY - ŽDÁŇ 1 season
- VN SLEZSKÁ HARTA - LESKOVEC NAD MORAVICÍ 1 season
Lakes rated Poor in 2025
None of the 62 lake bathing waters in Czechia was classified Poor in 2025.
Changes from 2024 to 2025
Improved (7)
- DALEŠICKÁ PŘEHRADA - KONĚŠÍNSKÁ PLÁŽ Good → Excellent
- VN LIPNO - PLÁŽ HORNÍ PLANÁ Sufficient → Good
- VN NOVÉ MLÝNY - HORNÍ NÁDRŽ - LAGUNA 1 Sufficient → Good
- VN PASTVINY - PANELOVKA Good → Excellent
- VN PLUMLOV Good → Excellent
- VN SEČ ÚSTUPKY Good → Excellent
- VN SLEZSKÁ HARTA - LESKOVEC NAD MORAVICÍ Good → Excellent
Declined (1)
- VN ORLÍK - VEŘEJNÉ TÁBOŘIŠTĚ PODOLSKO Excellent → Good
Lake bathing waters by region
| Region | Sites | Excellent | Poor |
|---|---|---|---|
| Moravian-Silesian Region | 11 | 90.9% | 0 |
| Central Bohemian Region | 10 | 100% | 0 |
Regions with at least three lake bathing waters; counts include only this water type.
Near which major cities?
Sites within 60 km (straight line) of a major city covered by our city guides:
- Prague 14 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 Czechia are rated Excellent?
- 56 of 62 (90.3%) in the 2025 EEA classification.
- Which lakes in Czechia have the best long-term record?
- 31 sites were Excellent in every season from 2015 to 2025, for example KOUPALIŠTĚ JESENICE - DŘENICE, MÁCHOVO JEZERO - BORNÝ, MÁCHOVO JEZERO - DOKSY. See the full list.
- Can I check current conditions?
- The annual class is not a live status. Current results and bans are published on Koupání v přírodě (Ministry of Health). Each site page on BathingWaterFinder also shows a weather forecast, including heavy-rain warnings.
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