Ko Tachai

Best months: Jan–May

Protected Area

Mu Ko Similan

Why dive here

With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Ko Tachai offers some of Similan Islands's richest diving. Water ranges 29-31°C, warmest April, May, June.

Best timeJan–May

WetsuitA 3mm shorty or thin full wetsuit

Marine lifeBlacktip Reef Sharks, Eagle Rays, Giant Moray Eels, Whale Sharks and Clownfish · 173+ species recorded

Water29-31°C · warmest April, May, June

StandoutExceptional marine biodiversity

Ko Tachai, in the Similan Islands, is a site we’ve always associated with leopard sharks and giant trevally patrolling the deeper waters. The main draw is a large pinnacle, dropping away into the blue. We've often found conditions here can be variable, with strong currents a real possibility, making it a better fit for experienced divers. Visibility can be excellent, though, revealing dense schools of snapper and fusiliers.

Today06:1718:1511h 58m daylightGolden hour 17:47

Reviews for Ko Tachai

Conditions

Ocean conditions, forecast and tides for Ko Tachai

Ko Tachai Ocean Conditions

Monthly averages for Ko Tachai, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.1, 98.3) (6km away)