Swimming in Vendée in september 2025 Sea temperature by city in september
Do you want to go to the beach in Vendée in september 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in september in Vendée by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Vendée in september 2025
Here, find the average sea temperature in Vendée in september in several coastal cities.
66°F
min: 63°F / max: 69°F
67°F
min: 64°F / max: 71°F
67°F
min: 64°F / max: 70°F
67°F
min: 64°F / max: 69°F
66°F
min: 64°F / max: 69°F
66°F
min: 64°F / max: 69°F
67°F
min: 64°F / max: 70°F
67°F
min: 64°F / max: 70°F
Saint-Jean-de-Monts
66°F
min: 64°F / max: 69°F
Beauvoir-sur-Mer
66°F
min: 63°F / max: 69°F
Bretignolles-sur-Mer
67°F
min: 64°F / max: 69°F
Longeville-sur-Mer
67°F
min: 64°F / max: 71°F
Saint-Hilaire-de-Riez
67°F
min: 64°F / max: 69°F
Where should you go swimming in Vendée in the month of september?
Swimming in Vendée in september is cool
In september in Vendée swimming conditions are generally the same everywhere.
Swimming in september in Noirmoutier Island, Jard-sur-Mer, La Tranche-sur-Mer, Les Sables-d'Olonne, Saint-Gilles-Croix-de-Vie, Yeu Island (Île d'Yeu), La Faute-sur-Mer, Port Bourgenay, Saint-Jean-de-Monts, Beauvoir-sur-Mer, Bretignolles-sur-Mer, Longeville-sur-Mer and Saint-Hilaire-de-Riez is possible but the sea is generally cool. So though the sea temperature may sometimes reach 69°F, it can also go as low as 63°F. Note that the average is 66°F.
Where to go swimming in Vendée in september: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in september
Noirmoutier Island
| September | |||
| Average sea temperature | 66°F | ||
| Minimum sea temperature | 63°F | ||
| Maximum sea temperature | 69°F | ||
| Average outside temperature | 65°F | ||
| Maximum outside temperature | 72°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 1.9in | ||
| Number of days of precipitation | 3 jour(s) (10%) | ||
| Cloud cover | 31% | ||
| Our opinion | cool swimming |
More information on swimming in Noirmoutier Island in september
Jard-sur-Mer
| September | |||
| Average sea temperature | 67°F | ||
| Minimum sea temperature | 64°F | ||
| Maximum sea temperature | 71°F | ||
| Average outside temperature | 67°F | ||
| Maximum outside temperature | 70°F | ||
| Minimum outside temperature | 61°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 4 jour(s) (13%) | ||
| Cloud cover | 31% | ||
| Our opinion | cool swimming |
More information on swimming in Jard-sur-Mer in september
La Tranche-sur-Mer
| September | |||
| Average sea temperature | 67°F | ||
| Minimum sea temperature | 64°F | ||
| Maximum sea temperature | 70°F | ||
| Average outside temperature | 67°F | ||
| Maximum outside temperature | 74°F | ||
| Minimum outside temperature | 61°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 4 jour(s) (15%) | ||
| Cloud cover | 28% | ||
| Our opinion | cool swimming |
More information on swimming in La Tranche-sur-Mer in september
Les Sables-d'Olonne
| September | |||
| Average sea temperature | 67°F | ||
| Minimum sea temperature | 64°F | ||
| Maximum sea temperature | 69°F | ||
| Average outside temperature | 67°F | ||
| Maximum outside temperature | 70°F | ||
| Minimum outside temperature | 61°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 4 jour(s) (13%) | ||
| Cloud cover | 31% | ||
| Our opinion | cool swimming |
More information on swimming in Les Sables-d'Olonne in september
Saint-Gilles-Croix-de-Vie
| September | |||
| Average sea temperature | 66°F | ||
| Minimum sea temperature | 64°F | ||
| Maximum sea temperature | 69°F | ||
| Average outside temperature | 67°F | ||
| Maximum outside temperature | 70°F | ||
| Minimum outside temperature | 61°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 4 jour(s) (13%) | ||
| Cloud cover | 31% | ||
| Our opinion | cool swimming |
More information on swimming in Saint-Gilles-Croix-de-Vie in september
List of coastal cities in Vendée
| Noirmoutier Island in september | cool swimming |
| Jard-sur-Mer in september | cool swimming |
| La Tranche-sur-Mer in september | cool swimming |
| Les Sables-d'Olonne in september | cool swimming |
| Saint-Gilles-Croix-de-Vie in september | cool swimming |
| Yeu Island (Île d'Yeu) in september | cool swimming |
| La Faute-sur-Mer in september | cool swimming |
| Port Bourgenay in september | cool swimming |
| Saint-Jean-de-Monts in september | cool swimming |
| Beauvoir-sur-Mer in september | cool swimming |
| Bretignolles-sur-Mer in september | cool swimming |
| Longeville-sur-Mer in september | cool swimming |
| Saint-Hilaire-de-Riez in september | cool swimming |