The Sió or Sió-csatorna (''Sió-Channel'') is a fully regulated river in midwest
Hungary
Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the ...
. It is the outlet, at the eastern end, of
Lake Balaton
Lake Balaton () is a freshwater lake in the Transdanubian region of Hungary. It is the largest lake in Central Europe, and one of the region's foremost tourist destinations. The Zala River provides the largest inflow of water to the lake, and ...
, flowing out of the lake in
Siófok
Siófok (; german: Fock; la, Fuk) is a town in Somogy County, Hungary on the southern bank of Lake Balaton. It is the second largest municipality in Somogy County and the seat of Siófok District. It covers an area of about 124.66 km2 (48.1 ...
. It flows into the river
Danube
The Danube ( ; ) is a river that was once a long-standing frontier of the Roman Empire and today connects 10 European countries, running through their territories or being a border. Originating in Germany, the Danube flows southeast for , p ...
near the city of
Szekszárd
Szekszárd (, formerly also ''Szegzárd''; hr, Seksar; german: Sechshard or ; sr, Сексард) is a small city in southern Hungary and the capital of Tolna County. By population, Szekszárd is the smallest county capital in Hungary; by area ...
. Sió flows through the Hungarian counties
Somogy,
Fejér and
Tolna, its main tributaries are
Kapos from the right and
Sárvíz from the left. It is long and its basin size is . The drainage basin of Sió (including Balaton) covers more than a third of
Transdanubia
Transdanubia ( hu, Dunántúl; german: Transdanubien, hr, Prekodunavlje or ', sk, Zadunajsko :sk:Zadunajsko) is a traditional region of Hungary. It is also referred to as Hungarian Pannonia, or Pannonian Hungary.
Administrative divisions Trad ...
. Its average
discharge at the
mouth is .
References
Rivers of Hungary
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