Great Barrier Reef, Australia
    Michaelmas and Upolu Cays

    Satellite Reef

    Best months: Feb–Mar

    Protected Area

    Michaelmas and Upolu Cays

    Why dive here

    With 154+ marine species recorded in the area - including hammerhead sharks, sea turtles, tiger sharks and napoleon wrasse - Satellite Reef offers some of Great Barrier Reef's richest reef diving. Water ranges 24-30°C, warmest January, February, March.

    Best timeFeb–Mar
    WetsuitNo wetsuit needed, or a rash guard
    Marine lifeHammerhead Sharks, Sea Turtles, Tiger Sharks and Napoleon Wrasse · 154+ species recorded
    Water24-30°C · warmest January, February, March
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Satellite Reef on the Great Barrier Reef is one of those sites we always try to hit when we're in the area. It’s not about huge pelagics here, though a Great hammerhead might cruise by if you’re lucky, but it’s the sheer density and variety of the corals that makes it a standout for us. You drop onto a reef bursting with Pavona, Turbinaria, and those wonderfully convoluted Largebrain Root corals. It feels like swimming through a living, breathing sculpture garden. We love exploring the nooks and crannies where you often spot Pharaoh Cuttlefish doing their colour-changing dance, or a Thorny Flathead perfectly camouflaged against the sand. The coral formations here are just incredible, especially the Cauliflower coral patches that sway gently with the surge. Visibility can be epic, often 20 metres plus, especially on an incoming tide when the water is super clear. Keep an eye out for the ruddy turnstones and Brown Boobies above the surface during your safety stop, too. This site really shines for macro enthusiasts and anyone who just wants to immerse themselves in a vibrant coral ecosystem.

    Safety Notes

    Strong currents typical this month (avg 30 cm/s). Good buoyancy control essential.

    Today05:5318:1612h 23m daylightGolden hour 17:48

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    Conditions

    Ocean conditions, forecast and tides for Satellite Reef

    Satellite Reef Ocean Conditions

    Monthly averages for Satellite Reef, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-15.65, 145.72) (5km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    26°C

    80°F · Range: 24.5–29°C

    Current Speed

    30.07 cm/s

    Direction: S (183.8°)

    Chlorophyll-a

    0.057 mg/m³

    Very clear (oligotrophic)

    Salinity

    35.08 PSU

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

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