Despite the Cervo’s generous mean discharge of about 22 cubic metres per second (780 cu ft/s)  at its confluence with the Sesia, its regime is sharply torrential.
The highest rates of flow occur with the melting of the prealpine snows in the late spring, and above all with the autumn rains.
The latter can lead to such disastrous floods as occurred in 1968 and 2002.
In the summer, however, the discharge is much diminished and significant tracts may dry up completely as a result of the heavy exploitation of its water.
Despite the Cervo’s generous mean discharge of about 22 cubic metres per second (780 cu ft/s)  at its confluence with the Sesia, its regime is sharply torrential. The highest rates of flow occur with the melting of the prealpine snows in the late spring, and above all with the autumn rains. The latter can lead to such disastrous floods as occurred in 1968 and 2002. In the summer, however, the discharge is much diminished and significant tracts may dry up completely as a result of the heavy exploitation of its water.
Cervo (river)