Port du Havre-Antifer (Le Havre-Antifer), a large oil terminal, is situated about 9 miles N of Cap de la Heve, close S of Cap d’Antifer.
The port is exposed to winds and swell between S and W. Local regulations are in force to prevent incidents due to bad weather. Strong winds may reduce the water level in the port by up to 0.5m.
The tides rise about 8m at MHWS and 6.6m at MHWN.
The tidal currents usually run parallel to the shore and attain a maximum rate of 3 knots at springs.