Rhine River Basin Freshwater in Average Year

In the Rhine river runoff peaks in upper region during the summer months (July-Sept) with less runoff occurring in the winter months because snow melt generally starts as of April. Throughout the basin during the period Oct –Jan runoff is low, highlighting the importance of input from snow and glacier melt. In the lower region of the river runoff is dominantly from rainfall. The lower basin in particular is heavily managed as it is an important water way for navigation, but the river as a whole is also a source for domestic water supply and utilities.

Freshwater Legend (mm/month)

Bargraph referencing the colours on the evaporation maps.

Other Rhine Maps

Rhine Freshwater Maps