Island of Brač has almost identical climate like Split town, but it is a rather dry island. You won’t find the lush Mediterranean vegetation like on Hvar and Korčula islands.
Generally the main characteristics of island climate are mild and rainy winters, with dry and warm summers.
The north parts are exposed in winter to the cold blows of the “bura” from the mainland, especially from Biokovo Mountain.
Island of Brač has less hours of sunshine than Hvar island but you can count on an average of 134 days of clear sky and 2600 hours of sunshine.