57m
    Baltic Coast, Sweden

    HMSM E18

    Best months: Jul–Aug

    Why dive here

    With 50+ marine species recorded in the area - including dwarf minke whales and jellyfish lake - HMSM E18 offers some of Baltic Coast's richest wreck diving. Water ranges 1-17°C, warmest July, August, September.

    Best timeJul–Aug
    WetsuitA 5mm wetsuit
    Marine lifeDwarf Minke Whales and Jellyfish Lake · 50+ species recorded
    Water1-17°C · warmest July, August, September
    CharacterWreck dive · max 57m

    The HMSM E18 is a haunting dive, sitting upright at 57 metres, and for us, it’s one of the Baltic’s real draws. You descend onto a piece of history, a submarine built by Vickers in 1915, and the scale of it quickly becomes apparent. The twin shafts are still there, the torpedo tubes visible, though sealed. We love the way she just rests on the seabed, almost as if she’s waiting for a new crew. Visibility here can be a bit variable, but on a good day, the low light filters down, creating an eerie glow on the steel. You can spend a good chunk of your bottom time just circumnavigating the hull, imagining the life on board. While we don't often see big pelagics here, small cod and blennies have made the various nooks and crannies their home, darting in and out of the corroded metalwork. For serious wreck enthusiasts, especially those with an interest in naval history and technical diving skills, this site is a truly special experience. It’s cold, it’s deep, and it’s spectacular.

    Typical HMSM E18 Dive Profile

    15m30m45m60mSafety Stop0m57m 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 57m 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 11°C). Drysuit or thick wetsuit (7mm+) recommended.

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

    Today06:0216:4210h 40m daylightGolden hour 15:46

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    Conditions

    Ocean conditions, forecast and tides for HMSM E18

    HMSM E18 Ocean Conditions

    Monthly averages for HMSM E18, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (59.85, 20.79) (4km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    11°C

    53°F · Range: 7.3–14.8°C

    Air Temperature

    8°C

    47°F

    Wind Speed

    5.57 m/s

    10.8 knots

    Atmospheric Pressure

    1010.6 hPa

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

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