Iron Bottom Sound, Solomon Islands
    Tulagi Island

    Guadalcanal

    Best months: Jul–Oct

    Protected Area

    Tulagi Island

    Why dive here

    With 391+ marine species recorded in the area - including barracuda, blacktip reef sharks, grey reef sharks, humpback whales and orcas - Guadalcanal offers some of Iron Bottom Sound's richest diving. Water ranges 29-31°C, warmest January, April, December.

    Best timeJul–Oct
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Blacktip Reef Sharks, Grey Reef Sharks, Humpback Whales and Orcas · 391+ species recorded
    Water29-31°C · warmest January, April, December
    StandoutExceptional marine biodiversity

    Iron Bottom Sound, right off Honiara, Guadalcanal, is a proper history lesson underwater. We’re talking shallow wrecks, mostly Japanese transport ships like the Kinugawa Maru, close enough to shore you can just walk in from Bonegi Beach. The visibility can vary, but we've seen schools of fusiliers darting through the rusted metal, and sometimes a napoleon wrasse will cruise by. It's a great spot for wreck enthusiasts who like to take their time exploring, no deep diving necessary, and there's a real sense of connection to the past here.

    Today06:0018:1612h 16m daylightGolden hour 17:48

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    Conditions

    Ocean conditions, forecast and tides for Guadalcanal

    Guadalcanal Ocean Conditions

    Monthly averages for Guadalcanal, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-9.03, 159.16) (58km away)

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    October Averages

    Sea Temperature

    30°C

    85°F · Range: 28.7–30.5°C

    Air Temperature

    27°C

    80°F

    Wind Speed

    3.74 m/s

    7.3 knots

    Atmospheric Pressure

    1010.5 hPa

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

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