Mafia Island, Tanzania
    Mangrove

    Seamount

    Best months: Jun–Oct

    Protected Area

    Mangrove

    Why dive here

    With 165+ marine species recorded in the area - including humpback whales, sea turtles, sperm whales and whale sharks - Seamount offers some of Mafia Island's richest pinnacle diving. Water ranges 26-29°C, warmest February, March, April.

    Best timeJun–Oct
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeHumpback Whales, Sea Turtles, Sperm Whales and Whale Sharks · 165+ species recorded
    Water26-29°C · warmest February, March, April
    CharacterPinnacle dive
    StandoutExceptional marine biodiversity

    Seamount offers a different feel from some of Mafia’s inner reefs. Here, you descend onto a series of rocky outcrops, cliffs, and sand channels, with corals growing well. We’ve seen big schools of surgeonfish and unicornfish here, sometimes so dense they create a shimmering wall. Keep an eye out for tuna and trevally cruising in the blue, and don’t forget to peek into the cracks for smaller critters. It’s a good spot for a relaxed drift, peaking around 22 meters, making it quite accessible for many divers.

    Today05:5818:1512h 17m daylightGolden hour 17:47

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    Conditions

    Ocean conditions, forecast and tides for Seamount

    Seamount Ocean Conditions

    Monthly averages for Seamount, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-8.12, 39.65) (37km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    27°C

    81°F · Range: 26.2–28.4°C

    Air Temperature

    26°C

    79°F

    Wind Speed

    7.33 m/s

    14.2 knots

    Atmospheric Pressure

    1014 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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