Bathing water quality in Switzerland
Of the 214 bathing sites the cantons report to the Federal Office for the Environment, 168 have excellent, 23 good and 2 sufficient water quality; 10 are rated poor and 11 could not be classified (2025 season, classification under the EU Bathing Water Directive).
Bathing sites
214
Excellent
168
Good
23
Poor
10
How sites are classified
The class is based on samples from four bathing seasons, each with at least four measurements of the gut bacteria E. coli and enterococci. It tells you how clean a site’s water is over the years, not how it is today. After heavy rain, quality can drop for a short time.
By lake and river
Lake Geneva (Lac Léman) 60
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Anière aval débarcadère | Anières | Excellent quality | Map |
| Plage de la Gravière | Anières | Poor quality | Map |
| Plage des Courbes | Anières | Excellent quality | Map |
| Plage du Vengeron - aval | Bellevue | Poor quality | Map |
| Plage du Vengeron - centre | Bellevue | Excellent quality | Map |
| Plage Gitana | Bellevue | Good quality | Map |
| Bain des Dames | Bourg-en-Lavaux | Excellent quality | Map |
| Plage de Céligny | Céligny | Good quality | Map |
| La Pichette | Chardonne | Excellent quality | Map |
| Bellerive débarcadère | Collonges | Good quality | Map |
| Plage de la Nymphe | Collonges | Excellent quality | Map |
| Plage de la Pointe-à-la-Bise | Collonges | Poor quality | Map |
| Plage de la Savonnière | Collonges | Good quality | Map |
| Port-Bleu | Collonges | Excellent quality | Map |
| Belotte | Cologny | Good quality | Map |
| Cédille | Cologny | Classification not possible | Map |
| Dalles de Tour-Carrée | Cologny | Classification not possible | Map |
| Genève-plage | Cologny | Excellent quality | Map |
| Pontons de Cologny | Cologny | Excellent quality | Map |
| Port-Tunnel | Cologny | Excellent quality | Map |
| Corseaux | Corseaux | Excellent quality | Map |
| La Crottaz | Corseaux | Excellent quality | Map |
| Corsier port | Corsier | Good quality | Map |
| Baby-plage | Genève | Good quality | Map |
| Bains des Pâquis | Genève | Excellent quality | Map |
| ONU plage | Genève | Good quality | Map |
| Perle du lac | Genève | Excellent quality | Map |
| Plage des Eaux-Vives | Genève | Excellent quality | Map |
| Plage du Quai-WILSON | Genève | Classification not possible | Map |
| William-Rappard | Genève | Poor quality | Map |
| Bains de Saugy | Genthod | Good quality | Map |
| Plage du Creux-de-Genthod | Genthod | Poor quality | Map |
| Gland/La Falaise | Gland | Good quality | Map |
| Plage d'Hermance | Hermance | Excellent quality | Map |
| Plage d'Hermance côté embouchure | Hermance | Excellent quality | Map |
| La Maladaire | La Tour-de-Peilz | Excellent quality | Map |
| Bellerive | Lausanne | Excellent quality | Map |
| La Vaudaire | Lausanne | Good quality | Map |
| Le Flon | Lausanne | Sufficient quality | Map |
| Le Parc Bourget | Lausanne | Good quality | Map |
| Curtinaux | Lutry | Good quality | Map |
| Le Basset | Montreux | Excellent quality | Map |
| Le Pierrier | Montreux | Excellent quality | Map |
| Camping | Noville | Poor quality | Map |
| Les Trois Jetées | Nyon | Good quality | Map |
| Plage de Chambésy | Pregny-Chambésy | Excellent quality | Map |
| Plage du Reposoir | Pregny-Chambésy | Good quality | Map |
| Centre | Préverenges | Excellent quality | Map |
| A.B.C. | Rolle | Poor quality | Map |
| Coulet | Saint-Prex | Poor quality | Map |
| Dorigny | Saint-Sulpice | Classification not possible | Map |
| Le Laviau | Saint-Sulpice | Classification not possible | Map |
| Anciens Bains de Versoix | Versoix | Classification not possible | Map |
| Bécassine | Versoix | Excellent quality | Map |
| Plage de Port-Choiseul | Versoix | Good quality | Map |
| Centre nautique et balnéaire | Vevey | Excellent quality | Map |
| Parc de l'Arabie | Vevey | Excellent quality | Map |
| Chillon | Veytaux | Excellent quality | Map |
| Chaufour | Villeneuve | Excellent quality | Map |
| Les Marines | Villeneuve | Excellent quality | Map |
Lake Lugano (Ceresio) 46
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Bagno pubblico Agno | Agno | Excellent quality | Map |
| Campeggio La Palma | Agno | Excellent quality | Map |
| Campeggio Molinazzo | Agno | Excellent quality | Map |
| Lido comunale Agno | Agno | Excellent quality | Map |
| Albergo Lago di Lugano | Bissone | Excellent quality | Map |
| Lido comunale Bissone | Bissone | Excellent quality | Map |
| Albergo Zappa | Brusino Arsizio | Excellent quality | Map |
| Ristorante Chalet San Giorgio | Brusino Arsizio | Excellent quality | Map |
| Villa Patria | Brusino Arsizio | Excellent quality | Map |
| Bagno Spiaggia Caslano | Caslano | Excellent quality | Map |
| Foce Magliasina | Caslano | Excellent quality | Map |
| Albergo Elvezia al Lago | Lugano | Excellent quality | Map |
| Albergo Villa Castagnola | Lugano | Excellent quality | Map |
| Bagno Pubblico Riva Caccia | Lugano | Excellent quality | Map |
| Fischer's Seehotel | Lugano | Excellent quality | Map |
| Hotel Lido Seegarten | Lugano | Excellent quality | Map |
| Lido Bagno Spiaggia Lugano | Lugano | Excellent quality | Map |
| Lido Càsoro | Lugano | Excellent quality | Map |
| Lido San Domenico | Lugano | Excellent quality | Map |
| Spiaggia delle Cantine | Lugano | Excellent quality | Map |
| Spiaggia libera-Foce Cassarate | Lugano | Excellent quality | Map |
| Ostello della Gioventù | Lugano (Caprino) | Excellent quality | Map |
| Bagno spiaggia Magliaso | Magliaso | Excellent quality | Map |
| Casa di cura Rivabella | Magliaso | Excellent quality | Map |
| Evangelisches Zentrum | Magliaso | Excellent quality | Map |
| Stiftung Zuercher Ferienkolonien | Magliaso | Excellent quality | Map |
| Albergo Battello | Melide | Excellent quality | Map |
| Albergo Del Lago | Melide | Excellent quality | Map |
| Albergo Riviera | Melide | Excellent quality | Map |
| Lido Comunale Melide | Melide | Excellent quality | Map |
| Ristorante Lido Capolago | Mendrisio | Excellent quality | Map |
| Zona Giardino Pubblico | Montagnola | Excellent quality | Map |
| Hotel Ristorante Arbostora | Morcote | Excellent quality | Map |
| Lido Ristorante al Porto | Morcote | Excellent quality | Map |
| Campeggio Touring Club | Muzzano | Excellent quality | Map |
| Albergo Eden | Paradiso | Excellent quality | Map |
| Ex Albergo Du Lac | Paradiso | Excellent quality | Map |
| Lido Comunale Conca d'Oro | Paradiso | Excellent quality | Map |
| Lido Comunale Riva S. Vitale | Riva San Vitale | Excellent quality | Map |
| Albergo Tresa Bay | Tresa | Excellent quality | Map |
| Campeggio Monte Generoso | Val Mara | Excellent quality | Map |
| Campeggio Paradiso | Val Mara | Excellent quality | Map |
| Garni Biodola | Val Mara | Excellent quality | Map |
| Lido Comunale Maroggia | Val Mara | Excellent quality | Map |
| Lido Comunale Melano | Val Mara | Excellent quality | Map |
| Swiss Diamond Hotel | Vico Morcote | Excellent quality | Map |
Lake Maggiore (Verbano) 36
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Albergo Ascolago | Ascona | Excellent quality | Map |
| Albergo Castello del Sole | Ascona | Excellent quality | Map |
| Albergo Collinetta | Ascona | Excellent quality | Map |
| Albergo Eden Roc | Ascona | Excellent quality | Map |
| Bagno pubblico Ascona | Ascona | Excellent quality | Map |
| Casa Moscia | Ascona | Excellent quality | Map |
| Lido Patriziale Ascona | Ascona | Excellent quality | Map |
| Hotel Yachtsport Resort | Brissago | Excellent quality | Map |
| Lido comunale Brissago | Brissago | Excellent quality | Map |
| Villa Caesar | Brissago | Excellent quality | Map |
| Albergo Viralago | Gambarogno | Excellent quality | Map |
| Bagno Pubblico Caviano | Gambarogno | Excellent quality | Map |
| Bagno pubblico Magadino | Gambarogno | Excellent quality | Map |
| Bagno Pubblico Riale di Gerra | Gambarogno | Excellent quality | Map |
| Bagno Pubblico Scimiana | Gambarogno | Excellent quality | Map |
| Bagno pubblico Vira Gambarogno | Gambarogno | Excellent quality | Map |
| Casa Vignascia | Gambarogno | Excellent quality | Map |
| Spiaggia pubblica Ranzo | Gambarogno | Excellent quality | Map |
| Bagno Pubblico Locarno | Locarno | Excellent quality | Map |
| Campeggio Delta | Locarno | Excellent quality | Map |
| Lido comunale Locarno | Locarno | Excellent quality | Map |
| Spiaggia libera-Osteria la Riva | Minusio | Excellent quality | Map |
| Spiaggia libera-Ristorante Giardino Lago | Minusio | Excellent quality | Map |
| Albergo La Rocca | Ronco sopra Ascona | Excellent quality | Map |
| Bagno Spiaggia Crodolo | Ronco sopra Ascona | Excellent quality | Map |
| Albergo Consolina | San Nazzaro | Excellent quality | Map |
| Bagno pubblico San Nazzaro | San Nazzaro | Excellent quality | Map |
| Bagno pubblico Tenero | Tenero-Contra | Excellent quality | Map |
| Campeggio Campofelice | Tenero-Contra | Excellent quality | Map |
| Campeggio Lago Maggiore | Tenero-Contra | Excellent quality | Map |
| Campeggio Lido Mappo | Tenero-Contra | Excellent quality | Map |
| Campeggio Miralago | Tenero-Contra | Excellent quality | Map |
| Campeggio Rivabella | Tenero-Contra | Excellent quality | Map |
| Campeggio Tamaro | Tenero-Contra | Excellent quality | Map |
| Centro Sportivo Tenero | Tenero-Contra | Excellent quality | Map |
| Lido comunale Tenero | Tenero-Contra | Excellent quality | Map |
Lake Neuchâtel (Lac de Neuchâtel) 14
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Camping VD 8 | Cheseaux-Noréaz | Excellent quality | Map |
| Chevroux | Chevroux | Excellent quality | Map |
| Cudrefin | Cudrefin | Poor quality | Map |
| Plage de Portalban | Delley-Portalban | Excellent quality | Map |
| Nouvelle plage | Estavayer | Excellent quality | Map |
| Corcelettes - les Pins | Grandson | Excellent quality | Map |
| Plage de Saint-Aubin | La Grande Béroche | Excellent quality | Map |
| Plage de la Tène | Laténa | Excellent quality | Map |
| Plage de Saint-Blaise Ouest | Laténa | Excellent quality | Map |
| Camping Paradis-Plage | Milvignes | Good quality | Map |
| Plage des Enfants | Neuchâtel | Excellent quality | Map |
| Plage des Jeunes-Rives | Neuchâtel | Excellent quality | Map |
| Clendy | Yverdon-les-Bains | Poor quality | Map |
| Le Port | Yvonand | Classification not possible | Map |
Lake Lucerne (Vierwaldstättersee) 7
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Badeplatz Alpnachstad | Alpnach | Excellent quality | Map |
| Buochs Neuseeland | Beckenried | Excellent quality | Map |
| Buochs Strandbad | Buochs | Excellent quality | Map |
| Lido Brunnen, SZ/02 | Ingenbohl | Excellent quality | Map |
| Ufschötti, Luzern | Luzern | Excellent quality | Map |
| Badeplatz Mississippi (Ufer 1) | Seedorf (UR) | Excellent quality | Map |
| Strandbad-Lido, Weggis | Weggis | Excellent quality | Map |
Maggia 6
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Sopra la dighetta | Avegno Gordevio | Classification not possible | Map |
| Zona dighetta | Avegno Gordevio | Excellent quality | Map |
| Zona Visletto | Cevio | Classification not possible | Map |
| Meriggio | Losone | Excellent quality | Map |
| Zona Coop | Maggia | Good quality | Map |
| Pozzo Tegna | Terre di Pedemonte | Excellent quality | Map |
Lake Zurich (Zürichsee) 6
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Strandbad Küsnacht | Küsnacht (ZH) | Excellent quality | Map |
| Schwimmbad Lido, Zürichsee | Rapperswil-Jona | Classification not possible | Map |
| Strandbad Stampf, Zürichsee | Rapperswil-Jona | Excellent quality | Map |
| Seebad Lattenberg | Stäfa | Excellent quality | Map |
| Strandbad Bürger | Thalwil | Excellent quality | Map |
| Strandbad Reitliau | Wädenswil | Excellent quality | Map |
Lake Constance (Bodensee) 5
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Schwimmbad Arbon | Arbon | Excellent quality | Map |
| Strandbad Güttingen | Güttingen | Excellent quality | Map |
| Schwimmbad Hörnli | Kreuzlingen | Excellent quality | Map |
| Schwimmbad Romanshorn | Romanshorn | Excellent quality | Map |
| Strandbad Rorschach, Bodensee | Rorschach | Excellent quality | Map |
Aare 3
Hallwilersee 3
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Vor Badi | Beinwil am See | Excellent quality | Map |
| Badi Tennwil | Meisterschwanden | Excellent quality | Map |
| Seerose | Meisterschwanden | Excellent quality | Map |
Rhine (Rhein) 3
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Rodenbrunen | Diessenhofen | Excellent quality | Map |
| Schaffhausen Rheinbad Rhybadi | Schaffhausen | Excellent quality | Map |
| Stein am Rhein Strandbad Niderfeld | Stein am Rhein | Good quality | Map |
Ägerisee 2
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Strandbad Lido | Oberägeri | Excellent quality | Map |
| Camping Unterägeri | Unterägeri | Excellent quality | Map |
Greifensee 2
Lac de Joux 2
Lake Murten (Lac de Morat) 2
Rhône 2
Untersee 2
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Seebad | Ermatingen | Excellent quality | Map |
| Strandbad Steckborn | Steckborn | Excellent quality | Map |
Verzasca 2
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| A valle Ponte dei Salti | Lavertezzo | Classification not possible | Map |
| Sotto il ponte | Lavertezzo | Excellent quality | Map |
Lake Zug (Zugersee) 2
Allondon/Nappe phréatique 1
Astano 1
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Laghetto di Astano | Astano | Excellent quality | Map |
Brenno 1
Lac de la Gruyère 1
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Plage de Gumefens | Pont-en-Ogoz | Sufficient quality | Map |
Nala 1
Pfäffikersee 1
Piumogna 1
Ticino-Moesa 1
| Bathing site | Commune | Quality | Map |
|---|---|---|---|
| Spiaggetta di Arbedo | Arbedo-Castione | Good quality | Map |
Lake Walen (Walensee) 1
By canton
18 cantons report bathing sites. Not reported does not mean poor: many sites are monitored by cantons and communes without appearing in this list.
Canton of Zurich: the latest samples
The Zurich cantonal laboratory tests the bathing sites every few weeks during the season. A single sample is a snapshot. Latest sample: 19 August 2026.
| Bathing site | Latest sample | Rating |
|---|---|---|
| Aeugst am Albis / Badeplatz Türlersee | 22 June 2026 | Excellent quality |
| Aeugst am Albis / Fischersteg | 22 June 2026 | Excellent quality |
| Bubikon / Badeplatz Egelsee | 20 July 2026 | Excellent quality |
| Dachsen / Badeplatz Dachsen | 10 August 2026 | Excellent quality |
| Egg / Seebadi Egg | 13 August 2026 | Excellent quality |
| Eglisau / Badeplatz Rhein | 14 July 2026 | Excellent quality |
| Erlenbach / Badeanstalt Wyden | 13 July 2026 | Excellent quality |
| Erlenbach / Strandbad Winkel | 13 August 2026 | Excellent quality |
| Fällanden / Badeplatz Rohr | 13 August 2026 | Excellent quality |
| Fällanden / Jugendherberge | 13 August 2026 | Excellent quality |
| Flaach / Campingplatz | 22 July 2026 | Excellent quality |
| Flaach / Thurbrücke Mitte | 20 July 2026 | Excellent quality |
| Flurlingen / Strandbad | 22 July 2026 | Excellent quality |
| Greifensee / Strandbad | 13 August 2026 | Excellent quality |
| Hausen am Albis / Strandbad | 22 June 2026 | Excellent quality |
| Hedingen / Badeplatz Hedingerweiher | 22 June 2026 | Excellent quality |
| Herrliberg / Steinrad | 13 August 2026 | Excellent quality |
| Hombrechtikon / Badeplatz Lützelsee | 20 July 2026 | Excellent quality |
| Hombrechtikon / Strandbad Feldbach | 13 August 2026 | Excellent quality |
| Horgen / Badeplatz Horgenerweiher | 22 June 2026 | Excellent quality |
| Horgen / Parkbad Seerose | 13 July 2026 | Excellent quality |
| Horgen / Sportbad Käpfnach | 13 August 2026 | Excellent quality |
| Hütten / Badeplatz Hüttnersee | 22 June 2026 | Excellent quality |
| Kilchberg / Seebad Schoren | 13 August 2026 | Excellent quality |
| Küsnacht / Kusenbad | 13 July 2026 | Excellent quality |
| Küsnacht / Strandbad | 13 August 2026 | Excellent quality |
| Männedorf / Strandbad Sonnenfeld | 13 August 2026 | Excellent quality |
| Maur / Campingplatz Naturfreunde | 13 August 2026 | Excellent quality |
| Maur / Campingplatz TCS | 13 August 2026 | Excellent quality |
| Maur / Strandbad Maur | 13 August 2026 | Excellent quality |
| Maur / Zeltklub Zürich | 13 August 2026 | Excellent quality |
| Meilen / Strandbad Dorfmeilen | 13 July 2026 | Excellent quality |
| Meilen / Strandbad Feldmeilen | 13 July 2026 | Excellent quality |
| Meilen / Strandbad Ländeli | 13 August 2026 | Excellent quality |
| Niederhasli / Badeplatz Mettmenhaslisee | 29 June 2026 | Excellent quality |
| Oberrieden / Strandbad | 13 August 2026 | Excellent quality |
| Opfikon-Glattbrugg / Stirnseite Opfikon | 27 July 2026 | Good quality |
| Opfikon-Glattbrugg / Stirnseite Zürich | 27 July 2026 | Excellent quality |
| Ossingen / Badeplatz Husemersee | 8 July 2026 | Excellent quality |
| Pfäffikon / Strandbad Auslikon | 13 August 2026 | Excellent quality |
| Pfäffikon / Strandbad Baumen | 13 August 2026 | Excellent quality |
| Richterswil / Seebad | 13 August 2026 | Excellent quality |
| Rüschlikon / Seebad | 13 August 2026 | Excellent quality |
| Seegräben / Strandbad Seegräben | 13 August 2026 | Good quality |
| Stäfa / Badeplatz Kehlhof | 13 July 2026 | Excellent quality |
| Stäfa / Seebad Länder Uerikon | 13 July 2026 | Excellent quality |
| Stäfa / Seebad Lattenberg | 13 August 2026 | Excellent quality |
| Thalwil / Strandbad Bürger 2 | 13 August 2026 | Excellent quality |
| Thalwil / Strandbad Ludretikon | 13 July 2026 | Excellent quality |
| Uetikon am See / Strandbad Uetikon | 13 August 2026 | Excellent quality |
| Uster / Einmündung Aabach | 13 August 2026 | Excellent quality |
| Uster / Strandbad Uster | 13 August 2026 | Excellent quality |
| Wädenswil / Badeplatz Bachgadenweiher | 3 July 2026 | Excellent quality |
| Wädenswil / Badewiese Naglikon | 13 July 2026 | Excellent quality |
| Wädenswil / Seebad Dorf | 13 July 2026 | Excellent quality |
| Wädenswil / Strandbad Rietliau | 13 August 2026 | Excellent quality |
| Weisslingen / Badeplatz Brauiweiher | 20 July 2026 | Good quality |
| Wiesendangen / Naturbad Kefikon Seite Auslauf | 12 August 2026 | Excellent quality |
| Wiesendangen / Naturbad Kefikon Seite Einlauf | 7 August 2025 | Excellent quality |
| Zollikon / Seebad | 13 August 2026 | Excellent quality |
| Zürich / Flussbad Au-Höngg | 19 August 2026 | Excellent quality |
| Zürich / Flussbad Oberer Letten | 19 August 2026 | Excellent quality |
| Zürich / Flussbad Unterer Letten | 19 August 2026 | Excellent quality |
| Zürich / Frauenbad Stadthausquai | 19 August 2026 | Excellent quality |
| Zürich / Männerbad Schanzengraben | 19 August 2026 | Excellent quality |
| Zürich / Seebad Enge | 13 August 2026 | Excellent quality |
| Zürich / Seebad Katzensee Nichtschwimmerbereich | 19 August 2026 | Excellent quality |
| Zürich / Seebad Katzensee Schwimmerbereich | 19 August 2026 | Excellent quality |
| Zürich / Seebad Utoquai | 13 August 2026 | Excellent quality |
| Zürich / Strandbad Mythenquai | 13 August 2026 | Excellent quality |
| Zürich / Strandbad Tiefenbrunnen | 13 August 2026 | Excellent quality |
| Zürich / Strandbad Wollishofen | 13 August 2026 | Excellent quality |
Water temperature of lakes and rivers Communes of Switzerland
Frequently asked questions
How clean are Swiss lakes for swimming?
Very clean: 168 of 214 reported bathing sites have excellent water quality (FOEN, 2025 season).
Where is bathing water quality poor?
10 sites are rated poor: Camping (Noville), A.B.C. (Rolle), Coulet (Saint-Prex), Cudrefin (Cudrefin), Clendy (Yverdon-les-Bains), Plage de la Pointe-à-la-Bise (Collonges), Plage du Vengeron - aval (Bellevue), Plage du Creux-de-Genthod (Genthod), William-Rappard (Genève), Plage de la Gravière (Anières).
How is bathing water quality measured?
By the gut bacteria E. coli and enterococci, with samples from four bathing seasons under the rules of the EU Bathing Water Directive.
Sources: Federal Office for the Environment FOEN, bathing water quality (cantons’ classification under the EU Bathing Water Directive); Zurich cantonal laboratory, bathing water samples (open government data). map.geo.admin.ch · zh.ch · JSON