I spend two weeks every year in Croatia
in Korcula, where my mom has a home. The avatar is the view from our terrace at sunset. The Bora (Bura) is rare when you will be going, but it can happen. They can be so fierce that dolphins drown in the blown spray. The surface of the water turns white. Your prevailing wind conditions will be calm in the morning, rising to 15+ kts from 11:00 AM onwards onshore. Around 4-5:00PM the wind will drop gradually and you can expect calms after sunset. It makes for lazy starts after a pleasant evening, with good sailing for 5-6 hours to get to your next port of call. Look through Ersin's link below, very good info.