Raja Ampat, Indonesia
    SUAKA ALAM PERAIRAN KEPULAUAN RAJA AMPAT DAN LAUT SEKITARNYA

    Alyui Bay

    Best months: Dec–Apr

    Protected Area

    SUAKA ALAM PERAIRAN KEPULAUAN RAJA AMPAT DAN LAUT SEKITARNYA

    Why dive here

    With 236+ marine species recorded in the area - including blacktip reef sharks, manta rays, mobula rays (devil rays), pygmy seahorses and sea turtles - Alyui Bay offers some of Raja Ampat's richest reef diving. Water ranges 29-30°C, warmest May, November, December.

    Best timeDec–Apr
    WetsuitNo wetsuit needed, or a rash guard
    Marine lifeBlacktip Reef Sharks, Manta Rays, Mobula Rays (Devil Rays), Pygmy Seahorses and Sea Turtles · 236+ species recorded
    Water29-30°C · warmest May, November, December
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Alyui Bay, tucked into the western side of Waigeo, is where we head when the mission is small stuff. Forget the big pelagics here; this is critter territory. We’ve spent hours finning slowly along its walls and slopes, spotting pygmy seahorses clinging to gorgonians and ghost pipefish swaying in the current. It’s a macro photographer's dream, a place where patience really pays off. The max depth usually hovers around 25 metres, making it approachable for most divers, though keeping an eye on your buoyancy is key when you’re hovering over delicate subjects. Currents can pick up, especially near the mouth, so it’s not always a completely placid drift.

    Safety Notes

    Strong currents typical this month (avg 35 cm/s). Good buoyancy control essential.

    Today06:0318:1012h 7m daylightGolden hour 17:43

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    Conditions

    Ocean conditions, forecast and tides for Alyui Bay

    Alyui Bay Ocean Conditions

    Monthly averages for Alyui Bay, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-0.5, 130.6) (0km away)

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    October Averages

    Sea Temperature

    30°C

    86°F · Range: 29.2–30.9°C

    Current Speed

    34.71 cm/s

    Direction: NW (311.5°)

    Chlorophyll-a

    0.138 mg/m³

    Clear water

    Salinity

    34.33 PSU

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

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