Swimming in Quebec in september 2025 Sea temperature by city in september
Do you want to go to the beach in Quebec 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 Quebec by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Quebec in september 2025
Here, find the average sea temperature in Quebec in september in several coastal cities.
Gaspésie in september
54°F
min: 49°F / max: 60°F
52°F
min: 47°F / max: 57°F
49°F
min: 43°F / max: 54°F
54°F
min: 50°F / max: 59°F
51°F
min: 45°F / max: 57°F
Cap-d'Espoir
56°F
min: 50°F / max: 62°F
Côte-Nord in september
49°F
min: 44°F / max: 55°F
Île aux Perroquets
51°F
min: 46°F / max: 56°F
Anticosti Island
51°F
min: 46°F / max: 56°F
Rivière-Saint-Paul
53°F
min: 47°F / max: 58°F
Sept-Îles
51°F
min: 45°F / max: 57°F
Where should you go swimming in Quebec in the month of september?
Swimming in Quebec in september is freezing
In september in Quebec swimming conditions are generally the same everywhere.
Forget about swimming in Gaspé (Gaspé Peninsula), Baie-Comeau, Carleton-sur-Mer, Rimouski, Bonaventure, Cap-Chat, Cap-d'Espoir, Grande-Vallée, Île aux Perroquets, Anticosti Island, Matane, Mont-Louis, Percé, Rivière-Saint-Paul, Sainte-Anne-des-Monts and Sept-Îles in september! The water temperature is freezing, reaching as low as 49°F (and only 60°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!
Where to go swimming in Quebec in september: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in september
Gaspé (Gaspé Peninsula)
| September | |||
| Average sea temperature | 54°F | ||
| Minimum sea temperature | 49°F | ||
| Maximum sea temperature | 60°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 61°F | ||
| Minimum outside temperature | 54°F | ||
| Precipitation | 4.8in | ||
| Number of days of precipitation | 6 jour(s) (19%) | ||
| Cloud cover | 41% | ||
| Our opinion | freezing swimming |
More information on swimming in Gaspé (Gaspé Peninsula) in september
Baie-Comeau
| September | |||
| Average sea temperature | 49°F | ||
| Minimum sea temperature | 44°F | ||
| Maximum sea temperature | 55°F | ||
| Average outside temperature | 56°F | ||
| Maximum outside temperature | 59°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 5.5in | ||
| Number of days of precipitation | 7 jour(s) (22%) | ||
| Cloud cover | 42% | ||
| Our opinion | freezing swimming |
More information on swimming in Baie-Comeau in september
Carleton-sur-Mer
| September | |||
| Average sea temperature | 52°F | ||
| Minimum sea temperature | 47°F | ||
| Maximum sea temperature | 57°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 4.6in | ||
| Number of days of precipitation | 5 jour(s) (17%) | ||
| Cloud cover | 41% | ||
| Our opinion | freezing swimming |
More information on swimming in Carleton-sur-Mer in september
Rimouski
| September | |||
| Average sea temperature | 49°F | ||
| Minimum sea temperature | 43°F | ||
| Maximum sea temperature | 54°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 61°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 4.5in | ||
| Number of days of precipitation | 6 jour(s) (20%) | ||
| Cloud cover | 41% | ||
| Our opinion | freezing swimming |
More information on swimming in Rimouski in september
Bonaventure
| September | |||
| Average sea temperature | 54°F | ||
| Minimum sea temperature | 50°F | ||
| Maximum sea temperature | 59°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 56°F | ||
| Precipitation | 5.4in | ||
| Number of days of precipitation | 6 jour(s) (19%) | ||
| Cloud cover | 39% | ||
| Our opinion | freezing swimming |
More information on swimming in Bonaventure in september
List of coastal cities in Quebec
| Gaspé (Gaspé Peninsula) in september | freezing swimming |
| Baie-Comeau in september | freezing swimming |
| Carleton-sur-Mer in september | freezing swimming |
| Rimouski in september | freezing swimming |
| Bonaventure in september | freezing swimming |
| Cap-Chat in september | freezing swimming |
| Cap-d'Espoir in september | freezing swimming |
| Grande-Vallée in september | freezing swimming |
| Île aux Perroquets in september | freezing swimming |
| Anticosti Island in september | freezing swimming |
| Matane in september | freezing swimming |
| Mont-Louis in september | freezing swimming |
| Percé in september | freezing swimming |
| Rivière-Saint-Paul in september | freezing swimming |
| Sainte-Anne-des-Monts in september | freezing swimming |
| Sept-Îles in september | freezing swimming |