A northwesterly, strong and variable flow prevails over the whole area.
For Istres - Les Heures Claires :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny becoming changeable in the afternoon. No precipitation. In the evening, cloud and long sunny periods.
No precipitation. NW wind force 4 continuing all day. Gusts reaching 26 knots in the middle of the day. Smooth sea. Low, short swell from WSW. Excellent visibility.