Absolutely !I spent years in Miami and the sun here is far more intense !
A good hat, UV resistant shades and some sunblock is a must for the open areas.
Mosquito repellant too for the Caribbean ,Osa or Nicoya.
Keep a can in your vehicle.
I've never been swarmed by skeeter here like in the states but Dengue is something you dont want to catch.
I wear long sleeve fishing shirts from Columbia sportswear.Light colors only.
Very good tropical, fast drying, clothing.