| Gewässer | Min. | Max. |
|---|---|---|
| Amsoldinger See | 15° C | 18° C |
| Bieler See | 15° C | 18° C |
| Brienzer See | 15° C | 18° C |
| Daubensee | 15° C | 18° C |
| Dittligsee | 15° C | 18° C |
| Gerzensee | 15° C | 18° C |
| Jucher Stausee | 15° C | 18° C |
| Lac de Gruyere | 15° C | 18° C |
| Moossee | 15° C | 18° C |
| Oeschinensee | 15° C | 18° C |
| Schiffenensee | 15° C | 18° C |
| Thuner See | 15° C | 18° C |
| Wohlensee | 15° C | 18° C |
| Übeschisee | 15° C | 18° C |