Kerama Islands, Japan
    Keramashoto Coral Reef

    Gahi Mae

    Best months: Jun–Aug

    Protected Area

    Keramashoto Coral Reef

    Why dive here

    With 369+ marine species recorded in the area - including barracuda, bull sharks, humpback whales, seahorses and sea turtles - Gahi Mae offers some of Kerama Islands's richest diving. Water ranges 22-30°C, warmest July, August, September.

    Best timeJun–Aug
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Bull Sharks, Humpback Whales, Seahorses and Sea Turtles · 369+ species recorded
    Water22-30°C · warmest July, August, September
    StandoutExceptional marine biodiversity

    Gahi Mae, off the Kerama Islands, is a site we return to again and again, especially when we’re looking for a solid, rewarding dive without too much fuss. It doesn't scream for attention like some of the deeper Kerama cuts, but it’s a reliable crowd-pleaser for a good reason. The main draw here is the sheer health of the hard coral. We’re talking sprawling beds of staghorn and branching corals that stretch out like underwater forests. It feels expansive, almost endless, in a way that’s increasingly rare to find. Drifting over the coral, you'll spot plenty of orange-lined triggerfish darting in and out, and if you have a keen eye, a triton's trumpet snail slowly making its way across a colony. We love heading there mid-morning, just as the sun is high enough to really illuminate the shallow parts of the reef, casting those dappled light patterns that make everything feel a bit magical. It's a fantastic spot for photographers who appreciate the intricate details of a healthy reefscape, and it’s generally a calm enough dive for those newer to the Keramas without feeling too tame.

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    Conditions

    Ocean conditions, forecast and tides for Gahi Mae

    Gahi Mae Ocean Conditions

    Monthly averages for Gahi Mae, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (26.24, 127.37) (1km away)

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    October Averages

    Sea Temperature

    29°C

    83°F · Range: 26.4–30.7°C

    Air Temperature

    26°C

    79°F

    Wind Speed

    9.4 m/s

    18.3 knots

    Atmospheric Pressure

    1014.4 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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