Florida Keys, United States
    John Pennekamp Coral Reef

    Florida Reef

    Best months: Apr–Jun

    Protected Area

    John Pennekamp Coral Reef

    Why dive here

    With 87+ marine species recorded in the area - including bull sharks, dolphins, hammerhead sharks, seahorses and sea turtles - Florida Reef 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

    The Florida Reef is… well, it’s complicated. Not a single dive site, but the entire barrier reef system running along the Keys. When we talk about ‘diving the Florida Reef’, we're usually talking about a specific patch, like Molasses Reef or Christ of the Abyss. It's the longest coral barrier reef in the continental U.S., which sounds impressive, and it is, but it’s seen better days. That doesn’t mean it’s not worth a dive, though. We often find ourselves drifting over extensive tracts of hard corals, brain corals, and star corals, punctuated by stands of gorgonians swaying in the surge. The water can be surprisingly cool even in summer, especially if you hit a thermocline. Visibility varies wildly, from a milky 10 metres after a storm to a crisp 25 metres on a good day, the kind where you can easily spot a lurking longspine squirrelfish or a tiny dwarf seahorse clinging to a blade of turtle grass. Our favourite moments are usually in the shallower, patch reef areas where the light penetrates fully, illuminating schools of porkfish and bluestriped grunts. It’s generally pretty accessible, suiting divers who appreciate convenience and the chance to see some classic Caribbean reef fish, even if the coral isn’t always vibrant. We’d suggest going early to beat the crowds, especially if you’re hitting one of the more popular mooring balls. Look for the elusive cherub pygmy angelfish darting among the coral heads; they’re a real treat if you can spot one.

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    Conditions

    Ocean conditions, forecast and tides for Florida Reef

    Florida Reef Ocean Conditions

    Monthly averages for Florida Reef, 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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