North Sea Coast, Denmark
    Hatter Barn

    Hatter Rev

    Best months: Jul–Aug

    Protected Area

    Hatter Barn

    Why dive here

    With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - Hatter Rev offers some of North Sea Coast's richest reef diving. Water ranges 3-19°C, warmest July, August, September.

    Best timeJul–Aug
    WetsuitA 5mm wetsuit
    Marine lifeSeals & Sea Lions, Sea Turtles and Jellyfish Lake · 95+ species recorded
    Water3-19°C · warmest July, August, September
    CharacterReef dive

    Forget what you think you know about Danish diving. Hatter Rev, out in the North Sea, isn't a Caribbean postcard, and that’s precisely why we love it. This isn't about vibrant corals (though you do find some resilient ones clinging on), it's about sheer, wild, untamed nature. Dive in, and you’re immediately struck by the power of this environment. The current can be a playful push or a serious tug, reminding you exactly where you are. We’ve drifted past dense schools of Pollock, their silver sides flashing as they dart through the water. Keep an eye on the sandy patches, they're home to curious Sand stars and the occasional flatfish, perfectly camouflaged. We’ve even spotted the elusive Ocean quahog, a clam that lives for centuries, a true marvel to encounter. It’s a site for divers who appreciate the raw beauty of colder waters and the thrill of discovery. We’d suggest going with a local guide; they know the eddies and the best drift lines. The visibility can vary, but on a good day, watching the sunbeams pierce the green water, illuminating a patch of Sea potato, feels like an ancient secret revealed. Don't expect dramatic drop-offs, but do expect an honest, invigorating dive that connects you directly to the pulse of the North Sea.

    Safety Notes

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

    Today06:4017:2910h 49m daylightGolden hour 16:38

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    Conditions

    Ocean conditions, forecast and tides for Hatter Rev

    Hatter Rev Ocean Conditions

    Monthly averages for Hatter Rev, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (55.31, 9.86) (1km away)

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    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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