Caribbean Coast, Costa Rica
    Marino las Baulas de Guanacaste

    Los Sombréros

    Good diving all year

    Protected Area

    Marino las Baulas de Guanacaste

    Why dive here

    With 217+ marine species recorded in the area - including dolphins, humpback whales, orcas, sea turtles and pufferfish - Los Sombréros offers some of Caribbean Coast's richest diving. Water ranges 29-31°C, warmest March, April, May.

    Best timeYear-round
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeDolphins, Humpback Whales, Orcas, Sea Turtles and Pufferfish · 217+ species recorded
    Water29-31°C · warmest March, April, May
    StandoutExceptional marine biodiversity

    Los Sombréros, off Costa Rica’s Caribbean coast, has a name that always makes us smile – a pair of volcanic pinnacles shaped like Mexican hats. It’s a great spot for an easy, colourful dive, with a maximum depth of 17m that keeps things relaxed. We often start on the shallower side, drifting around the ‘brim’ of one hat, spotting the usual suspects: schools of sand grunts hanging in the shadows, or a large-banded blenny peeking out from a crevice. What makes Sombréros stand out for us is the sheer number of puffers. Not just one or two, but spotted sharpnose puffers darting between the rocks, and occasionally a hedgehog puffer puffed right up, looking grumpy. It’s a dive that suits newer divers or anyone looking for a chilled-out afternoon exploring cracks and overhangs, keeping an eye out for a sleepy hawksbill turtle tucked away. We’ve had some fantastic encounters here with devil rays during the season too, which always feels like a bonus. Visibility hovers around 11m, so it’s not always gin-clear, but that just adds to the intimate feel of working your way around these cool volcanic formations.

    Today05:3317:3011h 57m daylightGolden hour 17:02

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    Conditions

    Ocean conditions, forecast and tides for Los Sombréros

    Los Sombréros Ocean Conditions

    Monthly averages for Los Sombréros, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (9.78, -84.89) (48km away)

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    October Averages

    Sea Temperature

    29°C

    85°F · Range: 27.9–31.1°C

    Current Speed

    5 cm/s

    Direction: N (0°)

    Chlorophyll-a

    0.142 mg/m³

    Clear water

    Salinity

    28.81 PSU

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

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