The Kerama Islands in Okinawa are considered a diver’s paradise, attracting travelers from Europe, North America, and Asia. Renowned for the legendary Kerama Blue, the waters offer clarity often exceeding 30–40 meters, ideal for photography, videography, and discovering vibrant marine life.

Seasonal Overview:

April–June
Water temperatures range from 22–26°C. Spring is perfect for beginners and divers who prefer calm seas. Coral reefs begin to bloom, and green turtles can often be seen gliding gracefully among the corals. During this period, divers enjoy quieter sites and can practice underwater photography without the crowds.

July–September:
Summer is peak season, with water temperatures reaching 27–30°C. Visibility remains excellent, and tropical fish display their most vivid colors. Divers can explore extensive reef areas, naturally following gentle currents that guide them along the coral formations. Though there are more divers on boats, well-organized small groups ensure a smooth and safe experience.

October–November
Temperatures cool slightly to 24–27°C, and visibility often improves. This is an excellent time for divers seeking less crowded conditions. Schools of fish are more active, and the gentle currents allow divers to float along the reef naturally, giving the feeling of effortless exploration. Many underwater photographers prefer autumn for its light and water clarity.

December–March
Cooler months with water temperatures around 19–22°C. Experienced divers enjoy peaceful conditions, with minimal boat traffic and calm seas. Wetsuits are recommended, but the vibrant corals and abundant marine life still make for an unforgettable experience.

Daily tours depart from Naha, making Kerama diving highly accessible. Most packages include hotel pick-up, boat fees, and full rental equipment, allowing divers to focus entirely on the underwater experience. Small-group guiding ensures personalized attention, safety, and plenty of opportunities to spot turtles, reef fish, and colorful corals.

Whether you’re a seasoned diver or trying your first tropical dive, Kerama diving in Okinawa offers a unique experience every season. Planning around your preferred water temperature and crowd levels will help you capture the true magic of the Kerama Islands, with memories that last a lifetime.