Lake Maggiore — Water balance
All known inflows and outflows of this lake with their current discharge — and the balance that results: is more water flowing in right now than out, or the other way round?
Partially recorded · 2 readings
Measured water balance
Updated 14 minutes ago
How to read the water balance: it is the difference between measured inflow and outflow, in cubic metres per second. A positive value means more water currently enters the lake than leaves it (it tends to rise), a negative value the opposite. It is a partial balance – not every tributary has a station, and rain on the lake surface, evaporation, groundwater and regulation are not fully captured. The balance therefore shows the tendency, not an exact volume calculation. The swimming-pool comparison only illustrates the order of magnitude.
Where does the water come from?
Where does it flow to?
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Rain and inflow
How Maggia, Locarno (Zufluss) responds to rainfall over the last 30 days.
- Rain
- Maggia, Locarno (Zufluss)
How to read: the bars show daily precipitation in the catchment (mm, left axis), the line the largest measured tributary (right axis). This shows whether and how quickly the lake responds to rain – inflow usually follows precipitation with some delay.

