Main affluents

Long list

Austrian drainage basin

Belgian drainage basin

Czech drainage basin

Danish drainage basins

English drainage basins

Flowing into the North Sea – Thames and Medway

From Foreness Point to Shoeburyness

Flowing into the North Sea – North of the Thames Estuary

From Shoeburyness to St Abb's Head River Hundred (Benacre, Kessingland

French drainage basin

The Aa is an 89 km long river in northern France. Its source is near the village Bourthes. It flows through the départements and cities of Pas-de-Calais: Saint-Omer and Nord: Gravelines.

German drainage basin

The three main rivers in Germany are the Rhine (main tributaries including the Neckar, the Main and the Moselle (Mosel)); the Elbe (also drains into the North Sea); and, the Danube (Donau).

German rivers draining into the North Sea

The rivers in this section are sorted south-west (Netherlands) to east (Danish border).

Netherlands drainage basin

Norwegian drainage basin

Scotland drainage basin

Swedish drainage basin

Switzerland drainage basin

The Rhine, together with its tributaries the Aare and the Thur drain about two thirds of the water into the North Sea.