Florida Keys, United States

    Deadman's Cays

    Best months: Apr–Jun

    Why dive here

    With 87+ marine species recorded in the area - including bull sharks, dolphins, hammerhead sharks, seahorses and sea turtles - Deadman's Cays offers some of Florida Keys's richest reef diving. Water ranges 19-32°C, warmest July, August, September.

    Best timeApr–Jun
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBull Sharks, Dolphins, Hammerhead Sharks, Seahorses and Sea Turtles · 87+ species recorded
    Water19-32°C · warmest July, August, September
    CharacterReef dive
    StandoutRich in charismatic marine life

    Deadman’s Cays sits off the Lower Keys, a spot we often find ourselves returning to for a reliable reef dive. It’s a series of small coral heads, not a sprawling wall, which means we can spend a good hour exploring the nooks and crannies without feeling rushed. We often spot things like fairy basslets darting into crevices and yellowhead wrasse sifting through the sand. It’s a good choice for a second dive of the day, or if you’re looking for a relaxed pace without battling strong currents.

    Today06:1718:0011h 43m daylightGolden hour 17:30

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    Conditions

    Ocean conditions, forecast and tides for Deadman's Cays

    Deadman's Cays Ocean Conditions

    Monthly averages for Deadman's Cays, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 8725520 - Fort Myers, FL (28km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    27°C

    81°F · Range: 20.9–31.1°C

    Air Temperature

    26°C

    79°F

    Current Speed

    0 cm/s

    Direction: S (180°)

    Salinity

    35.98 PSU

    Wind Speed

    2.7 m/s

    5.2 knots

    Atmospheric Pressure

    1014.5 hPa

    Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)

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