For Rottnest Island :
No gale warning.
The reliability of the situation is good.
Skies progressively hazing over in the morning, some sun but cloud building in the afternoon. No precipitation. In the evening, changeable skies becoming less cloudy.
No precipitation. ENE wind force 3 continuing all day. Gusts reaching 13 knots in the morning. Slight sea. Low, fairly long swell from WSW. Excellent visibility.