There are three particularly popular diving destinations in the USA, which have different climates and diving seasons. Diving season in Florida is year-round, but late summer is hurricane season, so a tropical cyclone is possible. Water temperature averages 66-78F/19-26C. In winter, one can dive with manatees, and from May to September, with an abundance of turtles. Water temperature in California is around 50F/10C in winter and 75F/24C in summer. Diving with gray whales is possible from January to April, with great white sharks in Autumn. Hawaii’s water temperature averages 70-75F/21-24C from November to April and 75-80F/24-27C from May to October. It is rainy season here in winter. Whales can be observed from late November to mid-April.
What to see
The teeming sea life here includes colorful tropical fish, starfish, spiny lobsters, turtles, sharks, whales and manatees. California has eight large islands, abundant sea life, beautiful coral reefs and kelp forests. Here you can see many types of reef fish, sharks, octopus, sea lions, seals, rays, mammals, great white sharks and whales. The marine life on Hawaii is absolutely incredible, and includes moray eels, manta rays, butterflyfish and angelfish, eagle rays, octopus, lobsters, green turtles, pelagic fish, hammerhead sharks, whale sharks, monk seals, mahi-mahi and even tiger sharks.