Florida Keys, United States
    USS Massachusetts (BB-2) Underwater Archaeological Preserve

    Monsanto Boxes

    Best months: Apr–Jun

    Protected Area

    USS Massachusetts (BB-2) Underwater Archaeological Preserve

    Why dive here

    With 87+ marine species recorded in the area - including bull sharks, dolphins, hammerhead sharks, seahorses and sea turtles - Monsanto Boxes offers some of Florida Keys's richest 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
    StandoutRich in charismatic marine life

    The Monsanto Boxes site is a good option when you're in the Keys and looking for something a bit different from the usual reef dives. We find it’s not always the clearest water, but the boxes themselves, remnants of old concrete structures, create some interesting nooks and crannies. You'll often spot some more unusual critters here, like the planehead filefish or even a fringed flounder camouflaged against the rubble. It's a nice easy dive, shallow enough for a long bottom time, and usually pretty calm, making it a good pick if you're looking for a relaxed afternoon under the waves.

    Today05:4817:2511h 37m daylightGolden hour 16:53

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    Conditions

    Ocean conditions, forecast and tides for Monsanto Boxes

    Monsanto Boxes Ocean Conditions

    Monthly averages for Monsanto Boxes, 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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