Swimming in La Rochelle in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in La Rochelle in september 2025.
In september, according to seasonal norms, the sea temperature in La Rochelle is:
Minimum: 64°F
Average: 67°F
Maximum: 70°F
Other useful seasonal weather averages in september:
- Outside temperature: 61°F to 72°F
- Most common weather: "Clear/Sunny"
- The wind blows at 9.9mph
- It rains a total of 2.6in, over 4 day(s).
Should we swim in La Rochelle in september?
Yes... and no. The water temperature in La Rochelle in september is cool
Swimming in september on the beaches of La Rochelle is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 70°F, it can also be as low as 64°F! Note that the average is 67°F.
Note also that in september, the climate is good with an average outside temperature of 66°F, 2.6in of precipitation (over 4 days) and 81.63 % humidity.
Water and normal seasonal temperatures in La Rochelle in september
| 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 | ||
| Wind speed | 12.4mph | ||
| Wind temperature | 61°F | ||
| Precipitation | 2.6in | ||
| Number of days of rain | 4 jour(s) (15%) | ||
| Humidity | 82% | ||
| Visibility in kilometers | 9.69km | ||
| Cloud cover | 28% | ||
| Our opinion | cool swimming |
Chart of the tides in september 2025
Tide times in september 2025 in La Rochelle
Swim elsewhere in Charentes in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Île d’Oléron in september | 67°F | 71°F | cool swimming | La Palmyre in september | 68°F | 71°F | cool swimming | Royan in september | 67°F | 71°F | cool swimming | Aix Island (ile d'aix) in september | 68°F | 71°F | cool swimming | Yves in september | 67°F | 71°F | cool swimming |