Swimming in Nantes in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Nantes in september 2025.
In september, according to seasonal norms, the sea temperature in Nantes is:
Minimum: 63°F
Average: 66°F
Maximum: 69°F
Other useful seasonal weather averages in september:
- Outside temperature: 56°F to 74°F
- Most common weather: "Clear/Sunny"
- The wind blows at 8.1mph
- It rains a total of 1.9in, over 3 day(s).
Should we swim in Nantes in september?
Yes... and no. The water temperature in Nantes in september is cool
Swimming in september on the beaches of Nantes is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 69°F, it can also be as low as 63°F! Note that the average is 66°F.
Note also that in september, the climate is good with an average outside temperature of 65°F, 1.9in of precipitation (over 3 days) and 89.15 % humidity.
Water and normal seasonal temperatures in Nantes in september
| September | |||
| Average sea temperature | 66°F | ||
| Minimum sea temperature | 63°F | ||
| Maximum sea temperature | 69°F | ||
| Average outside temperature | 65°F | ||
| Maximum outside temperature | 74°F | ||
| Minimum outside temperature | 56°F | ||
| Wind speed | 10.6mph | ||
| Wind temperature | 56°F | ||
| Precipitation | 1.9in | ||
| Number of days of rain | 3 jour(s) (9%) | ||
| Humidity | 90% | ||
| Visibility in kilometers | 8.92km | ||
| Cloud cover | 33% | ||
| Our opinion | cool swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Nantes
Swim elsewhere in the Pays de la Loire in september
| City | Average T° | Min. T° | Max. T° | Our opinion | La Baule in september | 66°F | 68°F | cool swimming | Le Croisic in september | 65°F | 68°F | cool swimming | Pornic in september | 66°F | 69°F | cool swimming | Saint-Nazaire in september | 66°F | 68°F | cool swimming |
Swim in the Pays de la Loire in september: sea temperature by city