Koh Bon
Why dive here
With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Koh Bon offers some of Similan Islands's richest diving. Water ranges 29-31°C, warmest April, May, June.
Koh Bon, just a short hop from the Similans, usually comes up in conversation when we're talking manta rays in Thailand. It's a reliable spot, especially during the right season, to spend some time watching those big wings glide past. We've also spotted leopard sharks cruising the reef, and the occasional eagle ray. Beyond the pelagics, the nooks and crannies hold some interesting macro stuff, making a night dive here a surprisingly different experience. It's a site that rewards patience, and if you're keen on mantas, it should definitely be on your list.
Nearest Dive Centres to Koh Bon
Dive shops near Koh Bon
Love Diving Phuket
Sea Bees Diving Merlin Beach
Sea Fun Divers
Diving center
Pray Dive
Oceanic
Reviews for Koh Bon
Conditions
Ocean conditions, forecast and tides for Koh Bon
Koh Bon Ocean Conditions
Monthly averages for Koh Bon, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.1, 98.3) (6km away)
October Averages
Sea Temperature
30°C
85°F · Range: 28.7–30.4°C
Current Speed
5.1 cm/s
Direction: S (191.3°)
Salinity
29.75 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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