6m
    Baltic Coast, Sweden

    OSTERSJON

    Best months: Jul–Aug

    Why dive here

    With 50+ marine species recorded in the area - including dwarf minke whales and jellyfish lake - OSTERSJON 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 6m

    Ostersjon isn't about tropical fish or technicolor reefs. It’s a different kind of dive, and we absolutely love it for that. This old tug, resting upright at a shallow six meters, offers a genuinely atmospheric experience. Her stern is still largely intact, and you can swim through the bridge, which is always a highlight. The really interesting part is how life has claimed her – we've seen some surprisingly plump cod darting through the superstructure, and the whole wreck is draped in the distinctive red macroalgae that thrives in the Baltic. It’s a photographer’s dream on a clear day, with sunlight filtering through the masts and illuminating the cargo hold. Expect a cool water dive, but the visibility here can be surprisingly good, especially after a spell of calm weather. Our best tip? Go early to avoid any boat traffic, and take your time exploring the details. It’s a gentle dive, perfect for anyone keen on wreck exploration without the deep-water demands.

    Typical OSTERSJON Dive Profile

    5mSafety Stop0m6m max~60 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

    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.

    Today06:0416:4110h 37m daylightGolden hour 15:44

    Reviews for OSTERSJON

    Sign in to write a review

    Conditions

    Ocean conditions, forecast and tides for OSTERSJON

    OSTERSJON Ocean Conditions

    Monthly averages for OSTERSJON, 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

    Plan & book

    Ways to dive Baltic Coast, from day trips to liveaboards.

    Day trips & courses

    via GetYourGuide

    Guided dives, courses and snorkel trips with instant booking.

    Find dive trips in Baltic Coast

    Places to stay

    via Booking.com

    Hotels and dive resorts near Baltic Coast.

    Search stays in Baltic Coast

    Dive insurance

    Most travel insurance excludes or limits scuba. Check what you need before you go.

    Dive insurance explained

    Partner links: we may earn a commission if you book, at no extra cost to you. How we make money

    Where to Stay near OSTERSJON

    Prices from Booking.com. We may earn a commission at no extra cost to you.

    Back to Baltic Coast