For Biarritz :
No gale warning.
For the night from Friday to Saturday W wind force 2 continuing all night. Gusts reaching 10 knots in the early part of the night.
Slight sea becoming smooth to slight at the end of the night. Low, short swell from NW. Good visibility becoming poor in the middle of the night. Daytime of Saturday 22 august : The atmosphere will remain unstable.
Skies changeable to very cloudy. Light showers all day. In the evening, cloudy spells, sometimes dense.
Light showers. WSW force 2 in the morning turning WNW force 3 in the middle of the day. Smooth to slight sea becoming slight in the middle of the day then moderate. Low, short swell from NNW temporarily from N in the middle of the day. Poor visibility becoming good in the middle of the day then poor.