Water temperature in Anthy-sur-Leman (ARA) in September
Is it warm enough to swim in Anthy-sur-Leman in September? Average water temperature in Anthy-sur-Leman in September is 19.9°C and therefore is not suitable for comfortable swimming. The warmest water in Anthy-sur-Leman in September is 23.6°C, and the coldest is 16.8°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Anthy-sur-Leman
Changes water temperature in Anthy-sur-Leman in September 2025, 2024
To get an accurate forecast for the water temperature in Anthy-sur-Leman for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Anthy-sur-Leman, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.
You can choose any other years:
| Day |
2025 |
2024 |
Min |
Max |
| 1 September | 21°C | 22.9°C | 19.6°C | 23.6°C |
| 2 September | 20.7°C | 22.4°C | 19.8°C | 22.9°C |
| 3 September | 21.1°C | 22.4°C | 19.5°C | 22.7°C |
| 4 September | 21.2°C | 22.4°C | 19.1°C | 22.6°C |
| 5 September | 21.1°C | 22°C | 19.2°C | 22.8°C |
| 6 September | 20.9°C | 21.4°C | 19.1°C | 22.7°C |
| 7 September | 20.9°C | 20.8°C | 19.1°C | 22°C |
| 8 September | 20.6°C | 20.7°C | 19.1°C | 22.8°C |
| 9 September | 20.4°C | 21.2°C | 19.4°C | 22.7°C |
| 10 September | 21.3°C | 20.6°C | 19.5°C | 22.8°C |
| 11 September | 19.9°C | 20.4°C | 19.4°C | 22.7°C |
| 12 September | 19.9°C | 20.1°C | 19.2°C | 22.4°C |
| 13 September | 19.7°C | 19.9°C | 18.6°C | 22.5°C |
| 14 September | 19.6°C | 19.8°C | 18.4°C | 21.9°C |
| 15 September | 20.3°C | 19.7°C | 18.4°C | 21.9°C |
| Day |
2025 |
2024 |
Min |
Max |
| 16 September | 19.3°C | 19.6°C | 18.2°C | 22.2°C |
| 17 September | 19.5°C | 19.6°C | 17.9°C | 21.5°C |
| 18 September | 19.7°C | 19.5°C | 17.6°C | 21.3°C |
| 19 September | 19.9°C | 19.4°C | 17.6°C | 21.7°C |
| 20 September | 19.9°C | 19.3°C | 17.5°C | 22°C |
| 21 September | 20°C | 19°C | 17.3°C | 21.5°C |
| 22 September | 19.6°C | 18.8°C | 17.2°C | 21.1°C |
| 23 September | 19.3°C | 18.5°C | 17.1°C | 21.2°C |
| 24 September | 19°C | 18.3°C | 17°C | 20.7°C |
| 25 September | 18.7°C | 18°C | 16.8°C | 20.3°C |
| 26 September | 18.4°C | 17.8°C | 16.9°C | 19.9°C |
| 27 September | 18.7°C | 17.5°C | 16.8°C | 19.8°C |
| 28 September | 18.2°C | 17.5°C | 17°C | 19.5°C |
| 29 September | 18°C | 17.4°C | 16.8°C | 19.3°C |
| 30 September | 18.2°C | 17.3°C | 16.8°C | 19.3°C |
Average water temperature in Anthy-sur-Leman in September over a decade
| 2016 | 2017 | 2018 | 2019 | 2020 |
| 20.8°C | 18.9°C | 20.9°C | 20.2°C | 20.7°C |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 19.9°C | 20.5°C | 21.2°C | 19.8°C | |
Anthy-sur-Leman water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below