14m
    Beginner
    Gulf of Thailand, Thailand
    Mu ko Chumphon

    Ko Ngam Yai เกาะง่ามใหญ่

    Best months: Dec–Jan

    Protected Area

    Mu ko Chumphon

    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 - Ko Ngam Yai เกาะง่ามใหญ่ 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
    Charactermax 14m
    StandoutExceptional marine biodiversity

    Ko Ngam Yai, a consistent choice in the Gulf, offers a relaxed dive, usually maxing out around 14 meters. It's a prime spot for newer divers, with calm conditions and plenty of little nooks to poke around. We often spot schools of fusiliers here, swirling around the rock formations, and there's a good chance of finding some moray eels tucked into crevices. While it won't blow your mind with massive pelagics, Ko Ngam Yai is a dependable, pleasant dive, perfect for a chilled-out afternoon beneath the waves.

    Typical Ko Ngam Yai เกาะง่ามใหญ่ Dive Profile

    5m10m15mSafety Stop0m14m 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.

    Today06:1218:0811h 57m daylightGolden hour 17:40

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    Conditions

    Ocean conditions, forecast and tides for Ko Ngam Yai เกาะง่ามใหญ่

    Ko Ngam Yai เกาะง่ามใหญ่ Ocean Conditions

    Monthly averages for Ko Ngam Yai เกาะง่ามใหญ่, 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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