Lake Sempach

Also known as Sempachersee

lake in Switzerland

Key facts

Location: Canton of Lucerne
Primary inflows: Gross Aa , Chli Aa (Sempachersee), Meierhofbach, Wilibach, Dorfbach (Sempachersee), Brandbach, Röllbach (Sempachersee), Lipperütibach, and some unnamed
Primary outflows: Suhre
Basin countries: Switzerland
Surface area: 14.5 km (5.6 sq mi)
Average depth: 44 m (144 ft)
Max depth: 87 m (285 ft)
Water volume: 0.66 km (540,000 acre⋅ft)
Residence time: 16.9 years
Surface elevation: 503.77 m (1,652.8 ft)
Islands: Gamma Insel
Settlements: Sursee , Sempach

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Article

Lake Sempach (German: Sempachersee, Swiss Standard German pronunciation: [ˈzɛmpaxərˌzeː]) is a lake in the canton of Lucerne, Switzerland. Its area is about 14.5 km (5.6 sq mi) and its maximum depth is 87 m (285 ft).

A 50-metre-large (160 ft) island named Gamma Insel is located east of Sursee.