Sosúa offers good diving conditions throughout the year, as the bay area is fairly calm in all seasons and the water is warm. The average water temperatures are around 79-84F/26-29C, the best time to dive being June to September. Average air temperature is 79-82F/26-28C. There is little current or surge around this area, which makes diving enjoyable at any time regardless of tides. Water visibility averages 39ft/12m in winter and 115ft/35m in summer. The season with the greatest chances of spotting humpback whales starts in December and lasts until April.
What to see
The Caribbean Sea here is teeming with various marine creatures having their home among hard and soft corals, sponges, gorgonians and sea fans. Some of the most exciting species here include manta rays, moray eels, nurse sharks, parrotfish, porcupinefish and barracudas. Larger species that can also be observed in Sosúa are whale sharks and humpback whales, who come to breed and give birth to their offspring here.