DivePlnr
    Koh Hong dive site
    15m
    Beginner
    Similan Islands, Thailand
    Hat Noppharat Thara-Mu ko Phi Phi

    Koh Hong

    Best months: Jan–May

    Protected Area

    Hat Noppharat Thara-Mu ko Phi Phi

    Why dive here

    With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Koh Hong offers some of Similan Islands's richest diving. Water ranges 29-31°C, warmest April, May, June.

    Best timeJan–May
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBlacktip Reef Sharks, Eagle Rays, Giant Moray Eels, Whale Sharks and Clownfish · 173+ species recorded
    Water29-31°C · warmest April, May, June
    Charactermax 15m
    StandoutExceptional marine biodiversity

    Koh Hong offers a relaxed dive, mostly around 15m deep, making it perfect for newer divers or those looking for an easy second dive. You'll find a mix of hard corals and sandy patches, home to reef fish like parrotfish and small schools of snapper. It’s a pleasant drift, generally mild, and a good spot for spotting the smaller stuff if you take your time.

    Typical Koh Hong Dive Profile

    5m10m15mSafety Stop0m15m max~50 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today06:1318:1211h 59m daylightGolden hour 17:44

    Nearest Dive Centres to Koh Hong

    Dive shops near Koh Hong

    Similan Scuba Koh Yao Noi

    8km away

    The Sea Krabi Diving

    9km away
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    Sawasdee Divers

    14km away
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    Courses

    Sea Gypsy Divers

    17km away
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    Aqua Vision Diving Center

    17km away
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    Courses

    Poseidon Dive Center

    17km away
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    Courses
    View all dive centres in Similan Islands

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    Conditions

    Ocean conditions, forecast and tides for Koh Hong

    Koh Hong Ocean Conditions

    Monthly averages for Koh Hong, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.1, 98.3) (6km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    30°C

    85°F · Range: 28.7–30.4°C

    Current Speed

    5.1 cm/s

    Direction: S (191.3°)

    Salinity

    29.75 PSU

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

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