For Istanbul :
No gale warning.
The reliability of the situation is very good.
Overcast skies. Some light showers in the morning, possibility of showers in the afternoon. In the evening, very cloudy skies to overcast.
No precipitation. NNE force 3 in the morning becoming NE force 4 in the middle of the day. Gusts reaching 21 knots in the evening. Rippled sea becoming smooth in the middle of the day. Low, short swell from NNW temporarily from N in the middle of the day. Good visibility becoming excellent in the middle of the day.