Chart of year Aschau / Prien
| Date | Water temperature [°C] | Maximum [°C] | Minimum [°C] |
|---|---|---|---|
| 08.09.2026 | 12.3 | 16.1 | 10.4 |
| 07.09.2026 | 10.9 | 14.4 | 8.3 |
| 06.09.2026 | 10.7 | 14.9 | 8.5 |
| 05.09.2026 | 10.6 | 11.8 | 9.4 |
| 04.09.2026 | 11.7 | 16.1 | 9.5 |
| 03.09.2026 | 10.8 | 14.0 | 8.7 |
| 02.09.2026 | 10.7 | 14.5 | 8.6 |