Japan
Oshima Island
About this Dive Site
Description
Explore the diverse underwater landscapes surrounding Oshima Island, where volcanic rock formations meet sandy bottoms and vibrant coral gardens. This popular Kushimoto site teems with life, offering encounters with schooling fish, elusive octopuses, and the thrilling possibility of spotting sharks.
Best Time to Dive
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 19°C | 18°C | 20°C | 22°C | 24°C | 27°C | 29°C | 30°C | 29°C | 27°C | 24°C | 21°C |
Peak Season
May, October, March, April, June, July, September, November
Jan
Winter macro life, nudibranchs
Feb
Continued macro life, potential for sea turtles
Mar
Warming waters, increased fish activity
Apr
Spring bloom, good visibility
More monthly highlights
May
Manta ray season begins, abundant pelagics
Jun
Peak manta ray season, whale sharks possible
Jul
Continued manta ray sightings, warmer waters
Aug
Warmest water, good for macro, plankton blooms can reduce visibility
Sep
Manta rays still present, visibility improves
Oct
Excellent visibility, manta rays, good chance of seeing turtles
Nov
Manta rays, good visibility, cooler waters
Dec
Transition to cooler waters, macro life
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