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Excellent: 135Good: 14Sufficient: 1Not classified: 6Poor: 4
⚠️ Rated Poor in Switzerland — think twice
A Poor classification means persistent contamination across recent seasons. Authorities must advise against bathing, or ban it, at these sites.
- Plage de la Graviere Poor 🆕 New site — not enough seasons for a track record
- Plage de la Pointe-à-la-bise Poor ⚠ Rated Poor within the last 3 seasons
- Plage Du Creux-de-genthod Poor
- Plage Du Vengeron - Aval Poor
✅ The safest bets in Switzerland
Sites that have held the top rating five seasons in a row — not a one-year fluke.
- Nouvelle Plage Excellent ✅ Excellent five seasons straight
- Schwimmbad Romanshorn Excellent ✅ Excellent five seasons straight
- Campeggio Molinazzo Excellent ✅ Excellent five seasons straight
- Lido Comunale Conca D'oro Excellent ✅ Excellent five seasons straight
- Albergo Tresa Bay Excellent ✅ Excellent five seasons straight
- Strandbad Uster Excellent ✅ Excellent five seasons straight
- Badeplatz Alpnachstad Excellent ✅ Excellent five seasons straight
- Strandbad Seeliken Excellent ✅ Excellent five seasons straight
- Strandbad Maur Excellent ✅ Excellent five seasons straight
- Strandbad Küsnacht Excellent ✅ Excellent five seasons straight
- Strandbad Bürger Excellent ✅ Excellent five seasons straight
- Strandbad Brüggli Excellent ✅ Excellent five seasons straight
📍 Destinations in Switzerland
- Lugano
169 excellent of 209 within 35 km - Geneva
38 excellent of 56 within 35 km - Zurich
14 excellent of 15 within 35 km - Bern
5 excellent of 5 within 35 km
Common questions about swimming in Switzerland
Is it safe to swim in Switzerland?
Mostly yes. 88% of Switzerland's 160 officially monitored bathing sites hold the top "Excellent" class in the 2025 assessment, but 4 sites are rated Poor — bathing there is advised against or banned all season.
Which beaches in Switzerland should I avoid?
The 4 rated Poor: Plage de la Graviere, Plage de la Pointe-à-la-bise, Plage Du Creux-de-genthod, Plage Du Vengeron - Aval. Poor means the site failed the minimum standard across four seasons of sampling.
Where is the water cleanest in Switzerland?
114 sites have held the top rating five seasons running — a far better signal than a single good year. Around Lugano, Geneva, Zurich you will find the densest clusters.
How often is water quality tested in Switzerland?
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.