Comfortable water temperatures, colorful marine life,
and amazing humpback whale encounters make winter truly special.
＞WinterDecember–February
Season21–24°C
Water Temp17–19°C
Average Air Temp20m
Visibility5mm + Boat Coat
WetsuitOptions for All Certified Divers
RecommendedPleasant winter weather with comfortable sunshine.
23–24°C
22°C
20m+
・Dogtooth tuna
・Nudibranch season
・Excellent visibility
Kerama Islands
Cooler with seasonal northerly winds.
21–22°C
20°C
20m
・Whale swim season begins
・Cuttlefish
・Nudibranchs
Chibishi Islands
Comfortable winter conditions with excellent visibility.
21–22°C
20°C
20m
・Peak whale swim season
・Cuttlefish
・Nudibranchs
Whale Swim
*These are representative values calculated based on our company's past diving logs (2022–2025).
Sea Turtles & Kerama Blue
Great visibility and relaxed diving all winter long.
Clear Water & Beautiful Reefs
Clear water and beautiful coral reefs just a short boat ride from Naha.
Encounter Humpback Whales in the Wild Ocean
A unique winter adventure with humpback whales.
A 5mm wetsuit with a hooded vest is recommended for winter. Boat coats are also available to keep you warm between dives.
Typically from late January through March, depending on whale activity.
Winter often offers excellent visibility, although seasonal northerly winds may affect dive site selection.
Discover warm waters, colorful marine life, and unforgettable whale encounters.
