Siam Knoll
Protected Area
Pulau Tinggi Marine Park
Why dive here
With 107+ marine species recorded in the area - including blacktip reef sharks, sea turtles, whale sharks and pufferfish - Siam Knoll offers some of Tioman Island's richest diving. Water ranges 28-31°C, warmest April, May, November.
Siam Knoll offers a solid dive for those looking to explore a different kind of reef structure around Tioman. You’ll find a mix of hard and soft corals here, often with schools of yellowtail fusiliers swirling around the knoll itself. Keep an eye out for nudibranchs and smaller reef fish tucked into crevices. It’s a good spot for a second dive of the day, enjoyable for divers of all experience levels.
Nearest Dive Centres to Siam Knoll
Dive shops near Siam Knoll
OrcaNation Rawa
Diveasia Tioman Island
Boathouse Dive Centre & Spa
Tioman Dive Buddy
Reviews for Siam Knoll
Conditions
Ocean conditions, forecast and tides for Siam Knoll
Siam Knoll Ocean Conditions
Monthly averages for Siam Knoll, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (2.79, 104.21) (0km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.2–31.4°C
Current Speed
8.49 cm/s
Direction: SE (135°)
Salinity
31.88 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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