49m
    Cornwall & Devon, United Kingdom
    Offshore Overfalls

    CITY OF MEXICO

    Best months: Jul–Sep

    Protected Area

    Offshore Overfalls

    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) - CITY OF MEXICO 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 49m
    StandoutExceptional marine biodiversity

    The City of Mexico is one of those wrecks that really sticks with you. Dropping down to 49 metres, you’re greeted by a grand old steamship, her 78-metre length stretched out on the seabed. She went down in 1916, stopped and sunk by a German submarine, carrying coal from Blyth to Rochelle. We love that sense of history, how intact she still is, even after all these years. Her triple-expansion engine is a prominent feature, a complex tangle of machinery now cloaked in vibrant jewel anemones. We always suggest taking a good torch. The light penetration at this depth is limited, but your beam will pick out the reds and oranges, making the colours pop. Look for conger eels peering from dark recesses, their thick bodies disappearing into the gloom. Visibility here can be excellent, though it's always worth checking conditions. Our favourite part is exploring the holds, imagining the cargo she once carried. It's a dive for experienced deep wreck divers who appreciate a substantial piece of maritime history.

    Typical CITY OF MEXICO Dive Profile

    15m30m45mSafety Stop0m49m 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 49m 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.

    Today06:1817:2111h 3m daylightGolden hour 16:37

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    Conditions

    Ocean conditions, forecast and tides for CITY OF MEXICO

    CITY OF MEXICO Ocean Conditions

    Monthly averages for CITY OF MEXICO, 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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