| Bookmark | Wassertemperaturen Hessen vom 22. Sep. 2009 |
| Aartalsee | - |
| Badesee Mainflingen | 19°C |
| Baggersee Biblis | 18°C |
| Diemelsee | 18°C |
| Edersee / Waldeck | - |
| Inheidener See / Hungen | - |
| Langener Waldsee | - |
| Nidda-Stausee / Schotten | 17°C |
| Stockelache/ Borken | - |
| Strandbad Nieder-Roden / Rodgau | 17°C |
| Twistesee / Bad Arolsen | 18°C |
| Werratalsee | 17°C |