For Sesimbra :
No gale warning.
The reliability of the situation is assessed at 80%.
Warm sun all day. In the evening, clear skies.
WSW force 2 turning WNW force 3 in the middle of the day then becoming force 2. Gusts reaching 18 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from W. Excellent visibility.