Gulf of Thailand, Thailand
    Suratthani Environmental Protected Area

    Koh Nang Yuan

    Best months: Dec–Jan

    Protected Area

    Suratthani Environmental Protected Area

    Why dive here

    With 158+ marine species recorded in the area - including blacktip reef sharks, blue-spotted stingrays, mobula rays (devil rays), whale sharks and pufferfish - Koh Nang Yuan offers some of Gulf of Thailand's richest diving. Water ranges 28-31°C, warmest April, May, June.

    Best timeDec–Jan
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBlacktip Reef Sharks, Blue-Spotted Stingrays, Mobula Rays (Devil Rays), Whale Sharks and Pufferfish · 158+ species recorded
    Water28-31°C · warmest April, May, June
    StandoutExceptional marine biodiversity

    Koh Nang Yuan, just a stone's throw from Koh Tao, is a good spot for a relaxed dive. The main draw for us is the collection of smaller sites around the island, like Green Rock with its interesting boulder formations and swim-throughs that start shallow and drop to around 30 metres. You'll find plenty of reef fish flitting about, especially in the shallower sections. It's a busy place, popular with snorkelers too, but for easy diving and an afternoon exploring some gentle coral and sandy patches, it fits the bill nicely. This area is ideal for newer divers or those looking for a laid-back afternoon underwater without strong currents.

    Today06:1018:0711h 57m daylightGolden hour 17:39

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    Conditions

    Ocean conditions, forecast and tides for Koh Nang Yuan

    Koh Nang Yuan Ocean Conditions

    Monthly averages for Koh Nang Yuan, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (10.15, 99.7) (6km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    30°C

    86°F · Range: 29.1–31°C

    Air Temperature

    27°C

    81°F

    Wind Speed

    4.83 m/s

    9.4 knots

    Atmospheric Pressure

    1009.7 hPa

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

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