Similan Islands, Thailand
    กำหนดพื้นที่เกาะราชาใหญ่ เกาะราชาน้อย ตำบลราไวย์ อำเภอเมืองภูเก็ต จังหวัดภูเก็ต

    Racha Noi Island

    Best months: Jan–May

    Protected Area

    กำหนดพื้นที่เกาะราชาใหญ่ เกาะราชาน้อย ตำบลราไวย์ อำเภอเมืองภูเก็ต จังหวัดภูเก็ต

    Why dive here

    With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Racha Noi Island 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
    StandoutExceptional marine biodiversity

    Racha Noi usually delivers some of the best visibility around Phuket, making it a reliable spot when other sites are a bit murky. We often head to the northern and southern points, where those huge granite boulders create impressive swim-throughs and channels, much like what you’d find in the Similans. It’s a good place for a drift dive, letting the current carry you past schools of fusiliers and triggerfish. Keep an eye on the blue – manta rays make regular appearances here, and we’ve even had a few whale shark surprises over the years. This site is a solid choice for divers who appreciate dramatic underwater topography and the chance for big pelagic encounters.

    Today06:1418:1412h 0m daylightGolden hour 17:46

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    Conditions

    Ocean conditions, forecast and tides for Racha Noi Island

    Racha Noi Island Ocean Conditions

    Monthly averages for Racha Noi Island, 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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