The emergency services and the prefecture of Hérault warn of a notice of strong swell this Wednesday in the Mediterranean.
Since the start of the hot weather, the emergency services have been confronted with several cases of drowning.
In the past 48 hours, they have responded to five drownings, including three deaths.
A wind of 70 km/h and waves of up to 1.60 m are expected throughout the day.
Swimming will be dangerous and strongly discouraged outside supervised areas.
Tuesday, the firefighters intervened on the beach of the corniche, in Sète, where a forties was rescued in a state of anoxia (which corresponds to stage 4), with a large quantity of water in the stomach.
She was airlifted to Montpellier University Hospital in serious condition.
Two women drown an hour apart
Two people died after drowning this weekend in Languedoc