54m
    Cornwall & Devon, United Kingdom
    Offshore Brighton

    U 413 (POSSIBLY)

    Best months: Jul–Sep

    Protected Area

    Offshore Brighton

    Why dive here

    With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - U 413 (POSSIBLY) offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 176+ species recorded
    Water10-18°C · warmest July, August, September
    CharacterWreck dive · max 54m
    StandoutExceptional marine biodiversity

    The U-413, or what we strongly suspect is the U-413, sits deep off the Cornish coast. Dropping down to 54 metres, this is definitely one for the experienced trimix divers among us. The dive is a real journey into history. We've spent time tracing the remains of the conning tower, imagining the chaos of that August day in 1944. The wreck itself is remarkably intact for a vessel that met such a violent end. You can still make out the torpedo tubes at the bow, often home to a skulking conger eel or two. Further along the deck, the plating has peeled back in places, revealing the internal structure like an x-ray. It’s a somber experience, knowing 45 men went down with her. The dive is often a quiet one, with only the hum of your rebreather for company. Visibility can be hit or miss, but on a good day, the sheer scale of the U-boat is impressive. We love drifting along the length, seeing the fishing nets draped like ghostly shrouds, and the plumose anemones waving from every surface. Best dived on a slack tide, obviously, but even then, expect a bit of a workout getting to the shotline.

    Typical U 413 (POSSIBLY) Dive Profile

    15m30m45m60mSafety Stop0m54m 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 54m 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.

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

    Today06:1617:1911h 3m daylightGolden hour 16:35

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    Conditions

    Ocean conditions, forecast and tides for U 413 (POSSIBLY)

    U 413 (POSSIBLY) Ocean Conditions

    Monthly averages for U 413 (POSSIBLY), sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    17°C

    62°F · Range: 15.1–17.5°C

    Air Temperature

    13°C

    56°F

    Wind Speed

    8.14 m/s

    15.8 knots

    Atmospheric Pressure

    1011 hPa

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

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