Lombok & Gili Islands, Indonesia
    KK Karangasem

    Sidem

    Best months: Jan–Feb

    Protected Area

    KK Karangasem

    Why dive here

    With 246+ marine species recorded in the area - including blue-spotted stingrays, bull sharks, grey reef sharks, manta rays and mobula rays (devil rays) - Sidem offers some of Lombok & Gili Islands's richest reef diving. Water ranges 28-30°C, warmest April, May, November.

    Best timeJan–Feb
    WetsuitNo wetsuit needed, or a rash guard
    Marine lifeBlue-Spotted Stingrays, Bull Sharks, Grey Reef Sharks, Manta Rays and Mobula Rays (Devil Rays) · 246+ species recorded
    Water28-30°C · warmest April, May, November
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Sidem has always been a reliable pick for us when we’re in the mood to go small. While some sites get all the glory for big pelagics, Sidem delivers on the tiny, the camouflaged, and the downright weird. We love drifting over the sandy patches, eyes peeled for frogfish – the freckled anglerfish here are particularly good at blending in, so you need to look carefully, maybe even twice. The staghorn coral patches act like little cities, full of palebarred reefgobies flitting in and out, and if you’re patient, you might spot a seahorse clinging on. It’s a site for the slow explorers, the ones who get a thrill from finding a Sargassum nudibranch the size of a fingernail, or an elegant sandburrower disappearing into the substrate. Maxing out at 21 meters, it’s a calm, shallow dive, perfect for photographers or anyone wanting to spend an hour just observing the smaller residents of the reef.

    Today05:5818:1212h 15m daylightGolden hour 17:45

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    Conditions

    Ocean conditions, forecast and tides for Sidem

    Sidem Ocean Conditions

    Monthly averages for Sidem, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-8.35, 116.05) (0km away)

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    October Averages

    Sea Temperature

    30°C

    85°F · Range: 28.3–30.9°C

    Current Speed

    29.15 cm/s

    Direction: SW (239°)

    Chlorophyll-a

    0.223 mg/m³

    Clear water

    Salinity

    33.97 PSU

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

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