Arraial do Cabo, Brazil
    Reserva Biológica Marinha Do Arvoredo

    Ilha do Arvoredo

    Best months: Mar–Apr

    Protected Area

    Reserva Biológica Marinha Do Arvoredo

    Why dive here

    With 55+ marine species recorded in the area - including humpback whales - Ilha do Arvoredo offers some of Arraial do Cabo's richest 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

    Ilha do Arvoredo, in Arraial do Cabo, is one of our top picks in this part of Brazil. We love its distinct personality, a real step up from some of the more inshore sites. As you drop in, that classic cold-water upwelling clarity hits you straight away; you really notice the difference. The reef structure itself is varied, with some interesting rocky outcrops and small caves that you can peek into. You’ll often find banded pipefish tucked away here, and the black margates seem to hang around the deeper ledges. We’ve had some cracking encounters with permit and mutton snapper here, cruising past in the blue. Keep an eye out for the smaller stuff too, like the seaweed blennies doing their thing on the rocks. While the currents can be moderate, they're rarely overwhelming, and it’s that flow that brings in the bigger fish. We’d suggest going early in the morning to beat the boat traffic and catch the light streaming through the water. It’s a consistently rewarding dive, perfect for anyone who appreciates a vibrant, healthy ecosystem.

    Today05:4418:1912h 35m daylightGolden hour 17:48

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    Conditions

    Ocean conditions, forecast and tides for Ilha do Arvoredo

    Ilha do Arvoredo Ocean Conditions

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

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    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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