Downstream at the Vaal Barrage, water levels measure 7.5m with an outflow of 20.2m³/s. The current water temperature at the barrage stands at 12.3°C. Two-month trend of Vaal Dam water levels ...

The Vaal Dam's water storage was at 111.51% by midday on Sunday, rising from 109.3% full supply capacity. Continuous high inflow of water is said to be the cause.