Most of the year the climate is temperate, very little breeze and quiet, light summer clothes are recommended and nighttime, you can also use long sleeve blouses or shirts when going out to a restaurant or bar at night.
In Summer, you really want to go for the long siestas during the hot hours, hang on the beach under a nice shade. Afternoon rain showers are daily and you may have a full day of rain. Temperature will be warm-hot and 99.9% humidity ! So just use plastic sandals, cotton clothes and a good rain jacket.