Trincomalee & East Coast, Sri Lanka

    HMS Hermes

    Best months: Dec–Feb

    Why dive here

    With 254+ marine species recorded in the area - including barracuda, dolphins, sea turtles, sperm whales and spinner dolphins - HMS Hermes offers some of Trincomalee & East Coast's richest wreck diving. Water ranges 27-30°C, warmest April, May, October.

    Best timeDec–Feb
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Dolphins, Sea Turtles, Sperm Whales and Spinner Dolphins · 254+ species recorded
    Water27-30°C · warmest April, May, October
    CharacterWreck dive
    StandoutExceptional marine biodiversity

    Diving the HMS Hermes off Trincomalee isn’t just a dive; it's a deep plunge into history. This isn't some small fishing boat; it’s a colossal aircraft carrier, sunk in 1942, lying on its side, remarkably intact. We love how the sheer scale of the wreck hits you – finning past the enormous propeller, then moving up along the hull, it feels like you're exploring an underwater city. The Hermes is just over 50 meters deep at the seabed, with the shallower parts of the wreck around 40 meters. This depth means it's strictly for experienced divers comfortable with advanced decompression protocols, but the rewards are immense. Our favourite part has to be the bridge section. You can still make out the command areas, with schools of batfish circling the structure, almost guarding it. Big groupers often lurk in the hangars, and we’ve seen eagle rays glide over the main deck. It’s a quiet, humbling place, draped in soft corals, where every porthole tells a silent story. To really experience it, we’d suggest multiple dives; you can't absorb it all in just one. Dive early, before the thermocline pushes too high.

    Safety Notes

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

    Today05:1917:1911h 59m daylightGolden hour 16:51

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    Conditions

    Ocean conditions, forecast and tides for HMS Hermes

    HMS Hermes Ocean Conditions

    Monthly averages for HMS Hermes, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (8.53, 81.23) (31km away)

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    October Averages

    Sea Temperature

    30°C

    85°F · Range: 27.5–30.3°C

    Air Temperature

    27°C

    81°F

    Wind Speed

    4.73 m/s

    9.2 knots

    Atmospheric Pressure

    1009 hPa

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

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