Similan Islands, Thailand
    Mu Ko Similan

    Snapper Alley

    Best months: Jan–May

    Protected Area

    Mu Ko Similan

    Why dive here

    With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Snapper Alley 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

    Snapper Alley is a good spot for a relaxed dive in the Similans, particularly if you're looking for macro life. We often find juvenile reef fish sheltering amongst the coral bommies. It's a fairly shallow site, making it a nice choice for newer divers or those who prefer longer bottom times to really explore the nooks and crannies. You won't find huge pelagics here, but the smaller critters make it worthwhile.

    Today06:1818:1611h 58m daylightGolden hour 17:48

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    Conditions

    Ocean conditions, forecast and tides for Snapper Alley

    Snapper Alley Ocean Conditions

    Monthly averages for Snapper Alley, 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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