Swimming in Languedoc-Roussillon Mediterranean in september 2025 Sea temperature by city in september
Do you want to go to the beach in Languedoc-Roussillon Mediterranean 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 Languedoc-Roussillon Mediterranean by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Languedoc-Roussillon Mediterranean in september 2025
Here, find the average sea temperature in Languedoc-Roussillon Mediterranean in september in several coastal cities.
Hérault in september
71°F
min: 68°F / max: 74°F
70°F
min: 67°F / max: 73°F
70°F
min: 67°F / max: 73°F
71°F
min: 68°F / max: 74°F
70°F
min: 67°F / max: 73°F
71°F
min: 68°F / max: 74°F
Camargue in september
71°F
min: 68°F / max: 74°F
71°F
min: 68°F / max: 74°F
71°F
min: 68°F / max: 74°F
71°F
min: 68°F / max: 74°F
72°F
min: 68°F / max: 74°F
Port-Saint-Louis-du-Rhone
72°F
min: 69°F / max: 74°F
Pyrénées-Orientales in september
70°F
min: 66°F / max: 74°F
70°F
min: 66°F / max: 74°F
69°F
min: 66°F / max: 74°F
71°F
min: 67°F / max: 76°F
70°F
min: 66°F / max: 73°F
Barcarès
69°F
min: 66°F / max: 73°F
Aude in september
70°F
min: 67°F / max: 73°F
70°F
min: 67°F / max: 74°F
70°F
min: 66°F / max: 74°F
70°F
min: 67°F / max: 73°F
Port-la-Nouvelle
69°F
min: 66°F / max: 73°F
Where should you go swimming in Languedoc-Roussillon Mediterranean in the month of september?
Swimming in Languedoc-Roussillon Mediterranean in september is pleasant (in the best case scenario)
In september in Languedoc-Roussillon Mediterranean swimming conditions vary by city. Details below:
As for Montpellier, Agde, Aigues-Mortes, Le Cap d'Agde, Carnon-Plage, Grau-du-Roi, La Grande-Motte, Palavas-les-Flots, Saintes-Maries-de-la-Mer, Vias-Plage, Balaruc-les-Bains, Banyuls-sur-Mer, Salin de Giraud, Sète and Port-Saint-Louis-du-Rhone, swimming is pleasant in september. The sea water is 71°F on average (min: 68°F/max: 74°F) so you can easily spend time in the water.
Swimming in september in Canet-en-Roussillon, Frontignan, Gruissan, Narbonne, Perpignan, Port-Leucate, Valras-Plage, Argelès-sur-Mer, Collioure, Peyriac-de-mer, Sérignan, Barcarès, Côte Vermeille, Marseillan, Meze, Port-la-Nouvelle, Portvendres, Saint-Cyprien-Plage and Vic-la-Gardiole is possible but the sea is generally cool. So though the sea temperature may sometimes reach 74°F, it can also go as low as 66°F. Note that the average is 70°F.
Where to go swimming in Languedoc-Roussillon Mediterranean in september: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in september
Montpellier
| September | |||
| Average sea temperature | 71°F | ||
| Minimum sea temperature | 68°F | ||
| Maximum sea temperature | 74°F | ||
| Average outside temperature | 72°F | ||
| Maximum outside temperature | 77°F | ||
| Minimum outside temperature | 67°F | ||
| Precipitation | 2.8in | ||
| Number of days of precipitation | 3 jour(s) (10%) | ||
| Cloud cover | 20% | ||
| Our opinion | pleasant swimming |
More information on swimming in Montpellier in september
Agde
| September | |||
| Average sea temperature | 70°F | ||
| Minimum sea temperature | 67°F | ||
| Maximum sea temperature | 73°F | ||
| Average outside temperature | 70°F | ||
| Maximum outside temperature | 77°F | ||
| Minimum outside temperature | 63°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 3 jour(s) (10%) | ||
| Cloud cover | 22% | ||
| Our opinion | pleasant swimming |
More information on swimming in Agde in september
Aigues-Mortes
| September | |||
| Average sea temperature | 71°F | ||
| Minimum sea temperature | 68°F | ||
| Maximum sea temperature | 74°F | ||
| Average outside temperature | 72°F | ||
| Maximum outside temperature | 76°F | ||
| Minimum outside temperature | 67°F | ||
| Precipitation | 2.7in | ||
| Number of days of precipitation | 3 jour(s) (10%) | ||
| Cloud cover | 20% | ||
| Our opinion | pleasant swimming |
More information on swimming in Aigues-Mortes in september
Canet-en-Roussillon
| September | |||
| Average sea temperature | 70°F | ||
| Minimum sea temperature | 66°F | ||
| Maximum sea temperature | 74°F | ||
| Average outside temperature | 70°F | ||
| Maximum outside temperature | 77°F | ||
| Minimum outside temperature | 63°F | ||
| Precipitation | 2.5in | ||
| Number of days of precipitation | 3 jour(s) (12%) | ||
| Cloud cover | 20% | ||
| Our opinion | cool swimming |
More information on swimming in Canet-en-Roussillon in september
Le Cap d'Agde
| September | |||
| Average sea temperature | 70°F | ||
| Minimum sea temperature | 67°F | ||
| Maximum sea temperature | 73°F | ||
| Average outside temperature | 70°F | ||
| Maximum outside temperature | 77°F | ||
| Minimum outside temperature | 63°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 3 jour(s) (10%) | ||
| Cloud cover | 22% | ||
| Our opinion | pleasant swimming |
More information on swimming in Le Cap d'Agde in september
List of coastal cities in Languedoc-Roussillon Mediterranean
| Montpellier in september | pleasant swimming |
| Agde in september | pleasant swimming |
| Aigues-Mortes in september | pleasant swimming |
| Canet-en-Roussillon in september | cool swimming |
| Le Cap d'Agde in september | pleasant swimming |
| Carnon-Plage in september | pleasant swimming |
| Frontignan in september | cool swimming |
| Grau-du-Roi in september | pleasant swimming |
| Gruissan in september | cool swimming |
| La Grande-Motte in september | pleasant swimming |
| Narbonne in september | cool swimming |
| Palavas-les-Flots in september | pleasant swimming |
| Perpignan in september | cool swimming |
| Port-Leucate in september | cool swimming |
| Saintes-Maries-de-la-Mer in september | pleasant swimming |
| Valras-Plage in september | cool swimming |
| Vias-Plage in september | pleasant swimming |
| Argelès-sur-Mer in september | cool swimming |
| Balaruc-les-Bains in september | pleasant swimming |
| Banyuls-sur-Mer in september | pleasant swimming |
| Collioure in september | cool swimming |
| Peyriac-de-mer in september | cool swimming |
| Salin de Giraud in september | pleasant swimming |
| Sérignan in september | cool swimming |
| Sète in september | pleasant swimming |
| Barcarès in september | cool swimming |
| Côte Vermeille in september | cool swimming |
| Marseillan in september | cool swimming |
| Meze in september | cool swimming |
| Port-la-Nouvelle in september | cool swimming |
| Port-Saint-Louis-du-Rhone in september | pleasant swimming |
| Portvendres in september | cool swimming |
| Saint-Cyprien-Plage in september | cool swimming |
| Vic-la-Gardiole in september | cool swimming |