Bathing water quality in Île-de-France, France
Île-de-France has 23 official bathing waters in the EEA dataset for the 2025 season (12 lake and 11 river). 47.8% were classified Excellent — 26.6 points below the 74.4% across France — and 7 were Poor. By department, the Excellent share is highest in Seine-et-Marne (75% of 8) and lowest in Val-de-Marne (16.7% of 6). 6 sites have been Excellent in every season from 2015 to 2025.
Qualité des eaux de baignade : Ile-de-France
Sur 23 sites de baignade officiels de l’UE (Ile-de-France), 47,8 % étaient « excellente » en 2025 ; sites classés « insuffisante » : 7.
official bathing waters
Excellent in 2025
Poor in 2025
Map of official bathing waters in Île-de-France
Île-de-France by department
Sites are placed in the Eurostat NUTS 3 departments that contain their reported coordinates.
| Department | Sites | Excellent | Good | Sufficient | Poor | Not classified |
|---|---|---|---|---|---|---|
| Seine-et-Marne | 8 | 6 (75%) | 0 | 0 | 2 | 0 |
| Val-de-Marne | 6 | 1 (16.7%) | 0 | 0 | 2 | 3 |
| Paris | 5 | 2 (40%) | 0 | 0 | 3 | 0 |
| Yvelines | 4 | 2 (50%) | 1 | 0 | 0 | 1 |
Sea, lakes and rivers in Île-de-France
| Water type | Sites | Excellent | Good | Sufficient | Poor | Not classified |
|---|---|---|---|---|---|---|
| Lake | 12 | 9 (75%) | 1 | 0 | 1 | 1 |
| River | 11 | 2 (18.2%) | 0 | 0 | 6 | 3 |
Coastal waters are assessed against stricter bacterial limits than lakes and rivers but are diluted far more; see how the classes are calculated.
Most consistent Excellent sites
6 sites were Excellent in all eleven seasons. Ordered by the length of the unbroken Excellent run ending in 2025.
- BASE DE LOISIRS DES ETANGS DE HOLLANDE 11 seasons · Yvelines
- CHAMPS-SUR-MARNE - BASE DE LOISIRS - GB 11 seasons · Seine-et-Marne
- GOUAIX - LES PRÉS DE LA FONTAINE 11 seasons · Seine-et-Marne
- JABLINES - ILE DE LOISIRS DE JABLINES ANNET 11 seasons · Seine-et-Marne
- SOUPPES-SUR-LOING - BASE DE LOISIRS 11 seasons · Seine-et-Marne
- TORCY - ILE DE LOISIRS DE VAIRES TORCY 11 seasons · Seine-et-Marne
- BASSIN DE LA VILLETTE 9 seasons · Paris
- LA GRANDE PAROISSE - BASE DE LOISIRS 4 seasons · Seine-et-Marne
- BASE DE LOISIRS DE MOISSON 2 seasons · Yvelines
- CANAL SAINT-MARTIN 2 seasons · Paris
- Plaine sud du Parc de Choisy 2 seasons · Val-de-Marne
Rated Poor in 2025
For a Poor site the Bathing Water Directive requires management measures, including a bathing prohibition or advice against bathing, so check the authority before visiting.
- MEAUX - PLAGE DU CHEMIN DES PATIS Poor in 8 of 10 classified seasons · Seine-et-Marne
- BERCY Poor in 1 of 1 classified seasons · Paris
- BOIS-LE-ROI - BASE RÉGIONALE DE LOISIRS Poor in 1 of 11 classified seasons · Seine-et-Marne
- BRAS DE GRENELLE Poor in 1 of 1 classified seasons · Paris
- BRAS MARIE Poor in 1 of 1 classified seasons · Paris
- Le banc de sable Poor in 1 of 1 classified seasons · Val-de-Marne
- Plage de Charentonneau Poor in 1 of 1 classified seasons · Val-de-Marne
Changes from 2024 to 2025
Improved (0)
None.
Declined (2)
- BOIS-LE-ROI - BASE RÉGIONALE DE LOISIRS Good → Poor
- BASE DE LOISIRS DE VERNEUIL Excellent → Good
How Île-de-France 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 | 19 | 11 | 57.9% | 7 |
| 2024 | 14 | 12 | 85.7% | 1 |
| 2023 | 13 | 8 | 61.5% | 0 |
| 2022 | 11 | 8 | 72.7% | 0 |
| 2021 | 11 | 8 | 72.7% | 1 |
| 2020 | 11 | 8 | 72.7% | 1 |
| 2019 | 11 | 10 | 90.9% | 1 |
| 2018 | 11 | 10 | 90.9% | 1 |
| 2017 | 11 | 10 | 90.9% | 1 |
| 2016 | 10 | 9 | 90% | 0 |
| 2015 | 10 | 9 | 90% | 1 |
All 23 official bathing waters in Île-de-France
Grouped by department, alphabetical within each group. Open a site for its 2015–2025 history, nearby alternatives, weather forecast and the national profile link.
Download all 23 sites as CSV (classes 2015–2025, coordinates, nearest place; EEA data, CC BY 4.0)
Seine-et-Marne 8 sites · 75% Excellent · 2 Poor
- BOIS-LE-ROI - BASE RÉGIONALE DE LOISIRS · Chartrettes Poor Poor in 1 of 11 classified seasons
- CHAMPS-SUR-MARNE - BASE DE LOISIRS - GB · Gournay-sur-Marne Excellent Excellent 11 seasons in a row
- GOUAIX - LES PRÉS DE LA FONTAINE Excellent Excellent 11 seasons in a row
- JABLINES - ILE DE LOISIRS DE JABLINES ANNET · Annet-sur-Marne Excellent Excellent 11 seasons in a row
- LA GRANDE PAROISSE - BASE DE LOISIRS Excellent Excellent 4 seasons in a row
- MEAUX - PLAGE DU CHEMIN DES PATIS Poor Poor in 8 of 10 classified seasons
- SOUPPES-SUR-LOING - BASE DE LOISIRS Excellent Excellent 11 seasons in a row
- TORCY - ILE DE LOISIRS DE VAIRES TORCY · Vaires-sur-Marne Excellent Excellent 11 seasons in a row
Val-de-Marne 6 sites · 16.7% Excellent · 2 Poor
- Baignade en Marne - Nogent · Nogent-sur-Marne Not classified
- Champigny plage · Champigny-sur-Marne Not classified
- Le banc de sable · Joinville-le-Pont Poor Poor in 1 of 1 classified seasons
- Plage de Charentonneau · Maisons-Alfort Poor Poor in 1 of 1 classified seasons
- Plage du Beach · Chennevières-sur-Marne Not classified
- Plaine sud du Parc de Choisy · Choisy-le-Roi Excellent Excellent 2 seasons in a row
Paris 5 sites · 40% Excellent · 3 Poor
- BASSIN DE LA VILLETTE · Paris 19 Buttes-Chaumont Excellent Excellent 9 seasons in a row
- BERCY · Gare Poor Poor in 1 of 1 classified seasons
- BRAS DE GRENELLE · Paris 16 Passy Poor Poor in 1 of 1 classified seasons
- BRAS MARIE · Paris Poor Poor in 1 of 1 classified seasons
- CANAL SAINT-MARTIN · Hôpital Saint-Louis Excellent Excellent 2 seasons in a row
Yvelines 4 sites · 50% Excellent
- BASE DE LOISIRS DE MOISSON · Follainville-Dennemont Excellent Excellent 2 seasons in a row
- BASE DE LOISIRS DE VERNEUIL · Vaux-sur-Seine Good Excellent → Good since 2024
- BASE DE LOISIRS DES ETANGS DE HOLLANDE · Saint-Léger-en-Yvelines Excellent Excellent 11 seasons in a row
- LE BARN HOTEL ETANG DU MOULIN DE BRETIGNY BONNELLES Not classified
Compared with other regions in France
| # | Region | Sites | Excellent | Poor |
|---|---|---|---|---|
| 1 | Nouvelle-Aquitaine | 419 | 82.1% | 8 |
| 2 | Pays de la Loire | 200 | 81% | 3 |
| 3 | Grand Est | 89 | 80.9% | 2 |
| 4 | Brittany | 601 | 77.5% | 10 |
| 5 | Bourgogne-Franche-Comté | 77 | 76.6% | 2 |
| 6 | Occitanie | 454 | 76.2% | 13 |
| 7 | Corsica | 223 | 75.8% | 20 |
| 8 | Auvergne-Rhône-Alpes | 284 | 75.4% | 15 |
| 9 | Centre-Val de Loire | 43 | 74.4% | 2 |
| 10 | Provence-Alpes-Côte d'Azur | 501 | 74.1% | 12 |
| 11 | Normandy | 161 | 66.5% | 5 |
| 12 | La Réunion | 26 | 65.4% | 1 |
| 13 | Guadeloupe | 103 | 64.1% | 3 |
| 14 | Île-de-France | 23 | 47.8% | 7 |
| 15 | Martinique | 62 | 46.8% | 1 |
| 16 | Hauts-de-France | 51 | 37.3% | 2 |
| 17 | Mayotte | 21 | 28.6% | 0 |
Regions with at least 15 official bathing waters. Size, water type and how densely sites are designated differ, so the table is context rather than a verdict.
Quick answers
- How many bathing waters in Île-de-France were rated Excellent in 2025?
- 11 of 23 (47.8%) in the official EEA 2025 classification; 1 were Good, 0 Sufficient and 7 Poor, and 4 had no class. That ranks Île-de-France 14 of 17 France regions by Excellent share.
- Which department of Île-de-France has the highest share of Excellent sites?
- Seine-et-Marne: 75% of its 8 sites were Excellent in 2025. Paris follows with 40%. Only departments with at least five sites are compared; see the full table.
- Which beaches and lakes in Île-de-France have the best long-term record?
- 6 sites were Excellent in every season from 2015 to 2025, for example BASE DE LOISIRS DES ETANGS DE HOLLANDE, CHAMPS-SUR-MARNE - BASE DE LOISIRS - GB, GOUAIX - LES PRÉS DE LA FONTAINE. See the ranking.
- Were any bathing waters in Île-de-France rated Poor?
- Yes, 7: MEAUX - PLAGE DU CHEMIN DES PATIS, BERCY, BOIS-LE-ROI - BASE RÉGIONALE DE LOISIRS, BRAS DE GRENELLE and 3 more.
- Where do I check whether swimming is allowed today?
- On baignades.sante.gouv.fr (Ministry of Health and the Regional Health Agencies (ARS)). Temporary bans, pollution alerts and closures are published there and on signs at the water, not in the annual EEA class.
France overview · All regions of France · Bathing waters near Paris · Bathing season dates
Sources and method
Bathing-water records: European Environment Agency (EEA), data and coordinates reported by France, licensed CC BY 4.0. Region and department boundaries: Eurostat NUTS 2024 (© EuroGeographics for the administrative boundaries). Place names: GeoNames (CC BY 4.0). A site belongs to the area that contains its reported coordinates; a site up to 10 km off the generalised coastline is placed in the nearest area of France. Counts, shares and rankings are calculated by BathingWaterFinder from the official records.