Water knowledge
Understanding Rhone
In Geneva, Lake Geneva and its regulation shape the Rhône's flow. The Arve joins at the Jonction. Curves at the lake outlet and at Chancy therefore describe different reaches. Repeated daily fluctuations are not in themselves evidence of daily rainfall.
This overview includes 18 monitoring stations for water level, discharge, and water temperature. Not every station provides every measurement. Track changes at the same station, checking the timestamp, unit and source notes. Related waters in this overview: Lake Geneva.
Discharge in m³/s is a volume per second, not the speed of the current. Station comparisons must account for location, measurement time and water travel time. A higher reading is neither automatically a flood warning nor an indication that the river is navigable.
Sources and further reading