8m
    Beginner
    Gulf of Thailand, Thailand
    Suratthani Environmental Protected Area

    Sairee Reef

    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 - Sairee Reef offers some of Gulf of Thailand's richest reef 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
    CharacterReef dive · max 8m
    StandoutExceptional marine biodiversity

    Sairee Reef, sitting just off Koh Tao's longest beach, is where many divers here first get their fins wet. At a consistent 8 meters, it’s shallow, forgiving, and really easy to navigate. We often spot groups of yellowtail barracuda cruising the sandy patches, and the resident parrotfish are always busy munching on the coral. It’s a gentle introduction to the Gulf’s underwater world, ideal for beginners, especially those looking for a relaxed afternoon dive or a night dive to see the reef sharks come out.

    Typical Sairee Reef Dive Profile

    5m10mSafety Stop0m8m max~60 min estimated bottom time

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

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

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    Conditions

    Ocean conditions, forecast and tides for Sairee Reef

    Sairee Reef Ocean Conditions

    Monthly averages for Sairee Reef, 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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