45m
    West Coast (Gothenburg), Sweden
    2025774 Rön, Röns skär, Röns huvud

    HAMMERN

    Best months: Jul–Aug

    Protected Area

    2025774 Rön, Röns skär, Röns huvud

    Why dive here

    With 121+ marine species recorded in the area - including dolphins, dwarf minke whales, humpback whales, orcas and seals & sea lions - HAMMERN offers some of West Coast (Gothenburg)'s richest wreck diving. Water ranges 3-18°C, warmest July, August, September.

    Best timeJul–Aug
    WetsuitA 5mm wetsuit
    Marine lifeDolphins, Dwarf Minke Whales, Humpback Whales, Orcas and Seals & Sea Lions · 121+ species recorded
    Water3-18°C · warmest July, August, September
    CharacterWreck dive · max 45m
    StandoutRich in charismatic marine life

    Hammern is, hands down, one of our favourite wreck dives on the Swedish West Coast. This isn't just a pile of metal; it’s a proper steamship, sitting upright, and she feels like a piece of history frozen in time. Descending through the often chilly North Sea green, the visibility can surprise you. We've seen it range from a tricky five metres to a brilliant fifteen, where the wreck just materialises out of the gloom. Once you’re on her, you can spend a solid chunk of a dive exploring the deck structures, peering into cargo holds, and getting a sense of her original form. The real beauty here, though, is how marine life has absolutely embraced this wreck. You’ll find schools of cod sheltering in the deeper sections, their dark forms blending with the steel. Conger eels are often tucked into crevices, their heads poking out with that curious, wary look. We’ve even spotted ling lurking in the more protected areas, big fish that really add to the atmosphere. It's a dive that rewards slow exploration, perfect for those who appreciate wrecks with character and the unique life they attract, rather than just colourful corals. Expect to feel that crisp Scandinavian cold, but also the thrill of discovery.

    Typical HAMMERN Dive Profile

    15m30m45mSafety Stop0m45m max~15 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

    Maximum depth 45m exceeds recreational limits (40m). Technical diving certification and equipment required.

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

    Cold water this month (avg 13°C). Drysuit or thick wetsuit (7mm+) recommended.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today06:4217:2510h 44m daylightGolden hour 16:32

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    Conditions

    Ocean conditions, forecast and tides for HAMMERN

    HAMMERN Ocean Conditions

    Monthly averages for HAMMERN, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (57.57, 11.03) (3km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    13°C

    56°F · Range: 10.6–15.8°C

    Air Temperature

    10°C

    50°F

    Wind Speed

    6.56 m/s

    12.8 knots

    Atmospheric Pressure

    1010.2 hPa

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

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