Medes Islands, Spain

    CESMM

    Best months: Jun–Sep

    Why dive here

    With 77+ marine species recorded in the area - including blue sharks, dolphins, ocean sunfish (mola mola), octopuses and sea turtles - CESMM offers some of Medes Islands's richest diving. Water ranges 14-24°C, warmest July, August, September.

    Best timeJun–Sep
    WetsuitA 3mm full wetsuit
    Marine lifeBlue Sharks, Dolphins, Ocean Sunfish (Mola Mola), Octopuses and Sea Turtles · 77+ species recorded
    Water14-24°C · warmest July, August, September
    StandoutRich in charismatic marine life

    CESMM isn't just another buoy at Medes; it's our pick for experiencing the island’s signature feel. Descending, you’ll likely feel the cooler water hit you first, a Mediterranean embrace. We’ve found the best approach is to drop down to about 20 metres, where the rock face begins to really open up. Look closely in the cracks and you'll spot common spiny lobsters waving their antennae, and often, schools of salema shimmer in the blue. Further along, the sheer density of fish life is what sets CESMM apart. Damsel fish dart in and out of the soft coral, and the occasional corb hangs out, surprisingly unafraid. It's a site that rewards a slow, observant dive, perfect for photographers or anyone who wants to really soak in the busy Medes ecosystem without too much current drama. We particularly love it on a sunny afternoon when the light penetrates beautifully, illuminating the rock wall.

    Today05:4016:5611h 16m daylightGolden hour 16:17

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    Conditions

    Ocean conditions, forecast and tides for CESMM

    CESMM Ocean Conditions

    Monthly averages for CESMM, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (43.2, 5.22) (37km away)

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    October Averages

    Sea Temperature

    20°C

    69°F · Range: 17.4–22.8°C

    Current Speed

    9.85 cm/s

    Direction: SW (246°)

    Chlorophyll-a

    0.182 mg/m³

    Clear water

    Salinity

    38.21 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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