Is it warm enough to swim in Lake Biel in September? Average water temperature in Lake Biel in September is 16.8°C and therefore is not suitable for comfortable swimming. The warmest water in Lake Biel in September is 23°C, and the coldest is 11°C. To find out the water temperature today and in the coming days, go to Current water temperature in Lake Biel
To get an accurate forecast for the water temperature in Lake Biel for any chosen month, compare two years within a 10 year range using the chart below.
Day | 2025 | 2024 |
---|---|---|
1 September | 17°C | 23°C |
2 September | 17°C | 22°C |
3 September | 17°C | 22°C |
4 September | 17°C | 21°C |
5 September | 17°C | 20°C |
6 September | 17°C | 20°C |
7 September | 18°C | 19°C |
8 September | 17°C | 18°C |
9 September | 17°C | 17°C |
10 September | 17°C | 15°C |
11 September | 17°C | 14°C |
12 September | 16°C | 13°C |
13 September | 17°C | 12°C |
14 September | 16°C | 11°C |
15 September | 16°C | 11°C |
Day | 2025 | 2024 |
---|---|---|
16 September | 16°C | 11°C |
17 September | 17°C | 11°C |
18 September | 18°C | 12°C |
19 September | 18°C | 13°C |
20 September | 17°C | 14°C |
21 September | 17°C | 14°C |
22 September | 16°C | 15°C |
23 September | 15°C | 15°C |
24 September | 13°C | 15°C |
25 September | 12°C | 15°C |
26 September | 11°C | 14°C |
27 September | 11°C | 13°C |
28 September | 13°C | |
29 September | 13°C | |
30 September | 12°C |
You can also view information about water temperature for other months by clicking on the month button below