18m
    Beginner
    Similan Islands, Thailand
    Hat Noppharat Thara-Mu ko Phi Phi

    Koh Haa, near Ao Nang

    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 Haa, near Ao Nang 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 18m
    StandoutExceptional marine biodiversity

    Not to be confused with the Koh Haa of Krabi fame, this Similan Islands spot near Ao Nang is a fine training ground for new divers. It's a shallow little number, topping out at 18 metres, making it perfect for those getting their buoyancy dialled in or for a relaxed safety stop drift. Expect to see some pretty common reef fish pottering about – we’ve often spotted parrotfish munching on coral and a few clownfish playing hide-and-seek in anemones. It’s a gentle introduction to the Similans, a good place to ease into the rhythm before tackling some of the area's more intense sites.

    Typical Koh Haa, near Ao Nang Dive Profile

    10m20mSafety Stop0m18m 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

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    Conditions

    Ocean conditions, forecast and tides for Koh Haa, near Ao Nang

    Koh Haa, near Ao Nang Ocean Conditions

    Monthly averages for Koh Haa, near Ao Nang, 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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