Summer time is period of termal winds,the Mistral. It blows in the afternoon
Hours when it is stable weather with force up to 5bf.when weather changes you can have
If you choose your location the best summer places are Bol on island of Brac and Viganj on penninsula Peljesac.
If you already chose Trogir , mistral(NW) wind you can find around neighbouring village Seget, SW and NE wind around Split
Greetings from Croatia