Tide Times in Northern France

The Northern France coastline stretches for 190 km from the Bay of the Somme to the Flemish dunes, where the English Channel meets the North Sea. This unique confluence creates distinctive tidal conditions: the tidal range reaches 9 metres in the Bay of the Somme, and currents in the Strait of Dover are among the strongest in France.

The famous Opal Coast — named for the grey-green-blue reflections of its waters — offers magnificent dune landscapes shaped by the tides. The Bay of the Somme, ranked among the most beautiful bays in the world, reveals a 72 km² foreshore at low tide, home to seal colonies and migratory birds. The cliffs of Cap Blanc-Nez and Cap Gris-Nez, chalk sentinels above the strait, mark the closest point to England.

The coastal departments — Pas-de-Calais, Nord and Somme — experience a semi-diurnal tidal regime with distinctive features from the meeting of two seas. Shore fishers find cockles, mussels, and lugworms in abundance. Navigation through the strait demands thorough knowledge of tide times due to intense shipping traffic (over 600 vessels per day).