Koh Bon Pinnacle, Koh Similan in Thailand
Discover the breathtaking underwater wonders of Koh Bon Pinnacle, a must-visit dive site for advanced divers in Phang-nga Province, Thailand. With depths starting at 22m and reaching 45m or deeper, this dive will push your skills to the limit.
Immerse yourself in a world teeming with vibrant yellow soft corals and lush vegetation. Prepare to be amazed as majestic mantas, graceful whale sharks, mesmerizing marble rays, shimmering mackerel schools, elegant batfish, and elusive reef sharks grace your dive.
Please note that Koh Bon Pinnacle is not suitable for beginners or divers with pressure equalization problems. There are no descent ropes available, making a negative entry technique advantageous for an optimal dive experience.
Enhance your dive with a speedy descent to get up close and personal with the abundant marine life. Take care to explore the sandy seabed at depths of 35m or beyond where the elusive marble rays like to rest. Keep a keen eye out for awe-inspiring sights of shoals of mackerel, batfish, and the occasional leopard or reef shark cruising by.
With visibility of approximately 17m and a maximum depth of 25m, Koh Bon Pinnacle guarantees an unforgettable diving adventure. Ensure you are equipped with the necessary experience and skills to fully enjoy this extraordinary dive site.
Embark on an unforgettable underwater expedition at Koh Bon Pinnacle in Thailand's Phang-nga Province. Book your advanced diving adventure now and experience the thrill of exploring the depths like never before.
Diving Conditions Score for Koh Bon Pinnacle, Koh Similan in Thailand
Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Koh Bon Pinnacle, Koh Similan in Thailand
Depth
25m
Visibility
17m
Experience Level
Weather Conditions for Koh Bon Pinnacle, Koh Similan in Thailand
Wave Height
0.5m
Wind Speed
17.6 m/s
Water Temp
30.2°C
Visibility
6.06km
Cloud Cover
100%
Wave Period
7.15s
Air Temperature
29°C
Precipitation
0 mm
Dive Score Chart for Koh Bon Pinnacle
Best time to dive: 10:00 with score 8.042192273730684/10. Water conditions: Waves 0.48m, Wind 12.3 m/s.Best night dive time: 4:00 with score 7.524977168949772/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Koh Bon Pinnacle are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.
Score: 8.0/10
Waves: 0.48m (7.55s), Wind: 12.3 m/s
Score: 7.5/10
Waves: 0.48m, Wind: 13.5 m/s
Seasonal Analysis for Koh Bon Pinnacle, Koh Similan in ThailandAlpha
Historical patterns and best seasons for diving at Koh Bon Pinnacle, Koh Similan in Thailand
The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.
Monthly Dive Score Analysis - Seasonal Diving Conditions
Higher values indicate better diving conditions
Seasonal DiveScore Chart
This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.
Higher values indicate better diving conditions
Best Season for Koh Bon Pinnacle, Koh Similan in Thailand
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Koh Bon Pinnacle, Koh Similan in Thailand
Ideal Conditions for Koh Bon Pinnacle, Koh Similan in Thailand
Water Temp
27.0°C / 80.6°F
August
Visibility
10.7m / 35.1ft
December
Wave Height
1.6m / 5.2ft
March
Wave Period
8.0s
January
Seasonal Insights for Koh Bon Pinnacle, Koh Similan in Thailand
Koh Bon Pinnacle, Koh Similan in Thailand shows typical northern hemisphere patterns with May being the warmest month (28.2°C) and December the coldest (23.2°C). The calmest conditions typically occur in March with average wave heights of 1.6m and wave periods of 8.0s. The most comfortable wave conditions are in March with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). January is usually the driest month with 0.1mm of precipitation. For beginners, the best time to visit would be during March to May, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.
Last updated: 1 min. ago - Jun 20, 2026