OSTERSJON
Protected Area
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Why dive here
With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - OSTERSJON offers some of North Sea Coast's richest wreck diving. Water ranges 3-19°C, warmest July, August, September.
Ostersjon isn't for the faint of heart, or for those who need sunny skies and balmy water. This is proper North Sea diving, a dark, moody wreck dive that rewards effort. The Ostersjon, a steamship that went down in 1944, lies upright at 27 metres. We love how intact she is, especially the bow, which still feels imposing as you descend onto it. Visibility here can swing wildly, but when it’s good, say 10 metres, you can really appreciate her scale. Inside, there’s a surprising amount to see; the cargo holds are open, and while you won't be penetrating deep, peeking into the gloom with a torch adds to the atmosphere. Our favourite detail is the way the metalwork has become a canvas for life – dead man's fingers coral coat every surface, and schools of cod and pollock often hover just off the deck, keeping their distance but always present. This site suits experienced cold-water wreck divers who appreciate history and a bit of a challenge. If you come, aim for a slack tide and bring a good primary light; you'll need it.
Typical OSTERSJON Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 27m - Advanced Open Water certification recommended.
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.
Reviews for OSTERSJON
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 (55.31, 9.86) (1km away)
October Averages
Sea Temperature
13°C
56°F · Range: 10.7–16.8°C
Air Temperature
11°C
52°F
Wind Speed
7.69 m/s
14.9 knots
Atmospheric Pressure
1010.5 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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