Diving on Crete is available all year round. Spring and fall are the best times to visit. Air temperatures average 20-26C/60-78F from May to September and 12-27C/53-80F from October to April. Water temperatures average 20-24C/68-75F from May to September and 16-24C/60-75F October to April. Visibility is excellent, and the average visibility is around 30m/98ft in the summer. Currents are weak.
What to see
The rich marine life in the waters off Crete, including octopi, corals, sea horses, lobsters, crabs, eels, rays, grouper, wrasses, scorpionfish, weever fish, shrimp, jellyfish, starfish, mollusks, sea snakes, turtles, cuttlefish, dolphins, whales, and seals.