Is it warm enough to swim in Lac de Serre-Poncon in September? Average water temperature in Lac de Serre-Poncon in September is 17.9°C and therefore is not suitable for comfortable swimming. The warmest water in Lac de Serre-Poncon in September is 22°C, and the coldest is 12°C. To find out the water temperature today and in the coming days, go to Current water temperature in Lac de Serre-Poncon
To get an accurate forecast for the water temperature in Lac de Serre-Poncon for any chosen month, compare two years within a 10 year range using the chart below.
Day | 2025 | 2024 |
---|---|---|
1 September | 16°C | 21°C |
2 September | 16°C | 21°C |
3 September | 16°C | 20°C |
4 September | 17°C | 20°C |
5 September | 17°C | 19°C |
6 September | 17°C | 19°C |
7 September | 18°C | |
8 September | 18°C | |
9 September | 17°C | |
10 September | 16°C | |
11 September | 15°C | |
12 September | 14°C | |
13 September | 13°C | |
14 September | 13°C | |
15 September | 13°C |
Day | 2025 | 2024 |
---|---|---|
16 September | 13°C | |
17 September | 13°C | |
18 September | 14°C | |
19 September | 14°C | |
20 September | 14°C | |
21 September | 14°C | |
22 September | 14°C | |
23 September | 14°C | |
24 September | 14°C | |
25 September | 13°C | |
26 September | 13°C | |
27 September | 13°C | |
28 September | 12°C | |
29 September | 13°C | |
30 September | 13°C |
You can also view information about water temperature for other months by clicking on the month button below