Swimming in Saint-Malo in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Saint-Malo in september 2025.
In september, according to seasonal norms, the sea temperature in Saint-Malo is:
Minimum: 63°F
Average: 65°F
Maximum: 67°F
Other useful seasonal weather averages in september:
- Outside temperature: 57°F to 68°F
- Most common weather: "Clear/Sunny"
- The wind blows at 8.1mph
- It rains a total of 2.5in, over 4 day(s).
Should we swim in Saint-Malo in september?
Yes... and no. The water temperature in Saint-Malo in september is cool
Swimming in september on the beaches of Saint-Malo is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 67°F, it can also be as low as 63°F! Note that the average is 65°F.
Note also that in september, the climate is good with an average outside temperature of 63°F, 2.5in of precipitation (over 4 days) and 86.84 % humidity.
Water and normal seasonal temperatures in Saint-Malo in september
| September | |||
| Average sea temperature | 65°F | ||
| Minimum sea temperature | 63°F | ||
| Maximum sea temperature | 67°F | ||
| Average outside temperature | 63°F | ||
| Maximum outside temperature | 68°F | ||
| Minimum outside temperature | 58°F | ||
| Wind speed | 12.4mph | ||
| Wind temperature | 56°F | ||
| Precipitation | 2.5in | ||
| Number of days of rain | 4 jour(s) (14%) | ||
| Humidity | 87% | ||
| Visibility in kilometers | 9.5km | ||
| Cloud cover | 38% | ||
| Our opinion | cool swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Saint-Malo
Swim elsewhere in Brittany in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Brest in september | 62°F | 65°F | cold swimming | Lorient in september | 65°F | 67°F | cool swimming | Saint-Brieuc (Côtes d'Armor) in september | 65°F | 67°F | cool swimming | Vannes in september | 65°F | 68°F | cool swimming | Concarneau in september | 63°F | 66°F | cool swimming | Dinard in september | 65°F | 67°F | cool swimming | Erquy in september | 65°F | 67°F | cool swimming | Perros-Guirec in september | 63°F | 66°F | cool swimming | The Quiberon peninsula in september | 65°F | 68°F | cool swimming | Belle-Île-en-Mer in september | 65°F | 68°F | cool swimming | Bénodet in september | 63°F | 66°F | cool swimming | Brehat Island (Île de Bréhat) in september | 64°F | 65°F | cool swimming | Cap Fréhel in september | 65°F | 67°F | cool swimming | Carnac in september | 64°F | 67°F | cool swimming | côte de granit rose (Pink Granite Coast) in september | 61°F | 64°F | cold swimming | Doëlan (Clohars-Carnoët) in september | 63°F | 66°F | cool swimming | Douarnenez in september | 62°F | 65°F | cold swimming | Fouesnant in september | 64°F | 66°F | cool swimming | Lannion in september | 62°F | 64°F | cold swimming | Le Crouesty in september | 65°F | 68°F | cool swimming |