Home › Czechia
Excellent: 122Good: 19Sufficient: 5Not classified: 7
✅ Not a single site in Czechia is rated Poor this season.
✅ The safest bets in Czechia
Sites that have held the top rating five seasons in a row — not a one-year fluke.
- Vn Tatrovice Excellent ✅ Excellent five seasons straight
- Zbytková Jáma Dolu Barbora Excellent ✅ Excellent five seasons straight
- Oborský Rybník - U Rz Eden Excellent ✅ Excellent five seasons straight
- Vn Březina Excellent ✅ Excellent five seasons straight
- Lom Horní Cerekev Excellent ✅ Excellent five seasons straight
- Malý Pařezitý Rybník Excellent ✅ Excellent five seasons straight
- Kališovo Jezero - Pískovna Excellent ✅ Excellent five seasons straight
- Příbram - Nový Rybník Excellent ✅ Excellent five seasons straight
- Koupaliště Jesenice - Dřenice Excellent ✅ Excellent five seasons straight
- Jezero Michal Sokolov Excellent ✅ Excellent five seasons straight
- Koupaliště Nové Město Pod Smrkem Excellent ✅ Excellent five seasons straight
- Vn Slapy - Nová Rabyně Excellent ✅ Excellent five seasons straight
📈 Turned around
These were rated Poor or Sufficient a few seasons ago and are Excellent today.
- Rybník Hejtman Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Rybník Chmelař Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Vn Slapy - Županovice Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
📍 Destinations in Czechia
Common questions about swimming in Czechia
Is it safe to swim in Czechia?
Mostly yes. 84% of Czechia's 153 officially monitored bathing sites hold the top "Excellent" class in the 2025 assessment, and not a single one is rated Poor.
Which beaches in Czechia should I avoid?
None. No bathing site in Czechia carries a Poor classification in the 2025 assessment.
Where is the water cleanest in Czechia?
96 sites have held the top rating five seasons running — a far better signal than a single good year. Around Brno, Prague you will find the densest clusters.
How often is water quality tested in Czechia?
Through the whole bathing season. National sanitary authorities sample each official site for E. coli and intestinal enterococci, report to the European Environment Agency, and the published class reflects the last four seasons combined.
Ratings are the official season-long classification, computed from the last four seasons of sampling — not a live reading. After a storm any site can be temporarily worse; local advisories win.