When full Lake Albacutya covers 5,500 ha (14,000 acres), is 8 m (26 ft) deep and holds around 230 gigalitres (5.1×1010 imp gal; 6.1×1010 US gal). Water enters the lake from Outlet Creek which is connected to Lake Hindmarsh to the south. When full the lake is controlled by the sill level of Outlet Creek, which once breached drains the lake to the north.
Being less saline than Lake Hindmarsh, Lake Albacutya supports a denser cover of vegetation in its dry phase.
In 2011 it was reported that the lake had not received any inflow for some years and remained dry throughout the wetter years of 2011-2012.