Scuba diving here is great year-round. The air temperatures range from 27°C/80°F in winter to 30°C/87°F in summer, but there usually is a nice breeze. The dry season falls between January and May, and the rainy season is from June to December, which also encompasses the Caribbean’s hurricane season.Water temperature remains fairly steady at 26°C/79°F in winter and 28°C/83°F in summer. Plus, visibility is usually good, ranging from 15-30 metres/50-100 feet.