Arraial do Cabo, Brazil
    Reserva Extrativista Marinha De Itaipu

    Costao de Itaipu

    Best months: Mar–Apr

    Protected Area

    Reserva Extrativista Marinha De Itaipu

    Why dive here

    With 55+ marine species recorded in the area - including humpback whales - Costao de Itaipu offers some of Arraial do Cabo's richest reef diving. Water ranges 22-28°C, warmest January, February, March.

    Best timeMar–Apr
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeHumpback Whales · 55+ species recorded
    Water22-28°C · warmest January, February, March
    CharacterReef dive

    Costao de Itaipu, for us, is all about slowing down. It’s a shallow spot, rarely deeper than six metres, which makes it perfect for longer bottom times and really focusing on the small stuff. We love it especially at night, when the place truly comes alive. Drop in and you’re immediately immersed in a different world – the flashlights pick out things you’d never spot during the day. We’re talking about finding sleeping parrotfish tucked into crevices, watching brittle stars unfurl their arms across rocks, and the sheer number of siri crabs scuttling over the sand. It’s not the place for big pelagics, but if you’re into macro life, this is your jam. Keep an eye out for those distinctive Blackberry Drupes clinging to the rocks, and we’ve often seen Brazilian red anemones glowing under our lights. The visibility averages around four metres, which sounds low, but it actually adds to that intimate, almost cave-like feel at night. It’s a fantastic site for photographers keen on patience and finding those unique nocturnal behaviours, or just for divers who appreciate a quiet, unhurried exploration.

    Today05:2417:5512h 31m daylightGolden hour 17:25

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    Conditions

    Ocean conditions, forecast and tides for Costao de Itaipu

    Costao de Itaipu Ocean Conditions

    Monthly averages for Costao de Itaipu, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-23.23, -44.16) (12km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    23°C

    73°F · Range: 17.8–26.6°C

    Current Speed

    8.49 cm/s

    Direction: SW (225°)

    Salinity

    35.38 PSU

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

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