Chart of year Arnstein / Wern
| Date | Water temperature [°C] | Maximum [°C] | Minimum [°C] |
|---|---|---|---|
| 16.07.2026 | 16.6 | 16.6 | 16.5 |
| 15.07.2026 | 17.6 | 18.8 | 16.1 |
| 14.07.2026 | 16.5 | 17.7 | 16.0 |
| 13.07.2026 | 16.2 | 17.3 | 15.4 |
| 12.07.2026 | 16.0 | 17.0 | 15.0 |
| 11.07.2026 | 16.0 | 17.1 | 15.0 |
| 10.07.2026 | 15.7 | 16.8 | 14.6 |