Hawaii, United States
    Kealakekua Bay Marine Life Conservation District

    Keauhou Bay

    Best months: Jul–Sep

    Protected Area

    Kealakekua Bay Marine Life Conservation District

    Why dive here

    Keauhou Bay is a drift dive where divers can encounter blue sharks, sea turtles and sperm whales. Water ranges 25-28°C, warmest August, September, October.

    Best timeJul–Sep
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBlue Sharks, Sea Turtles and Sperm Whales
    Water25-28°C · warmest August, September, October
    CharacterDrift dive

    Keauhou Bay, right off the Sheraton, is a solid little spot for an easy beach entry, especially if you’re staying nearby. We’ve always appreciated how straightforward it is to gear up and just walk in. The reef maxes out around 17 meters, so it’s a calm, shallow dive, perfect for stretching out a long bottom time. During the day, we often see parrotfish munching away on the coral, and the occasional whitetip reef shark cruises by. Keep an eye out for eagle rays gliding past in the blue. Our favorite time to dive Keauhou, though, is after sunset. That’s when the mantas often come to feed on the plankton attracted by the resort lights. Descending into the darkness and having one of those giants gracefully circle just inches away is a moment that genuinely sticks with you. You'll want to watch for boat traffic in the middle of the bay, but closer to shore, it’s usually clear. This is a great dive for anyone looking for a relaxed outing, day or night, without the hassle of a boat trip.

    Safety Notes

    Drift dive - carry a surface marker buoy (SMB) and stay with your group. Brief the current direction before entry.

    Today06:1818:0511h 48m daylightGolden hour 17:36

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    Conditions

    Ocean conditions, forecast and tides for Keauhou Bay

    Keauhou Bay Ocean Conditions

    Monthly averages for Keauhou Bay, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (20.73, -156.95) (9km away)

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    October Averages

    Sea Temperature

    27°C

    81°F · Range: 26.7–28.4°C

    Current Speed

    11.31 cm/s

    Direction: NW (315°)

    Chlorophyll-a

    0.035 mg/m³

    Very clear (oligotrophic)

    Salinity

    35.58 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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