Richelieu Rock, Koh Surin in Thailand
Richelieu Rock: The Ultimate Dive Site in Surin Islands National Park
Richelieu Rock, located in Surin Islands National Park, is undoubtedly one of the most sought-after dive sites in Thailand. This mesmerizing limestone reef emerges just one meter above the water surface during low tide, making it an adventure you won't want to miss.
With a maximum depth of 25 meters and exceptional visibility of 17 meters, Richelieu Rock promises an unforgettable diving experience for beginners and advanced divers alike. The abundance of marine life will leave you in awe as you encounter magnificent creatures at every turn.
Prepare to be amazed by bigeye trevally, barracudas, and the captivating blue-and-white reef sharks. You will also delight in the sight of fox snapper schools and the awe-inspiring presence of whale sharks, truly a highlight of this remarkable dive site.
Situated far from other islands, Richelieu Rock provides shelter to countless marine species seeking refuge from the shallow waters, waves, and currents. It has become a thriving feeding ground, attracting a diverse range of creatures you won't find elsewhere.
When planning your next diving adventure, make sure to include Richelieu Rock in your itinerary. Its natural beauty, incredible marine life, and unique geological features will undoubtedly leave you with memories that will last a lifetime.
Richelieu Rock: The Premier Dive Site in Surin Islands National Park, Thailand.
Richelieu Rock, located in Surin Islands National Park, is undoubtedly one of the most sought-after dive sites in Thailand. This mesmerizing limestone reef emerges just one meter above the water surface during low tide, making it an adventure you won't want to miss.
With a maximum depth of 25 meters and exceptional visibility of 17 meters, Richelieu Rock promises an unforgettable diving experience for beginners and advanced divers alike. The abundance of marine life will leave you in awe as you encounter magnificent creatures at every turn.
Prepare to be amazed by bigeye trevally, barracudas, and the captivating blue-and-white reef sharks. You will also delight in the sight of fox snapper schools and the awe-inspiring presence of whale sharks, truly a highlight of this remarkable dive site.
Situated far from other islands, Richelieu Rock provides shelter to countless marine species seeking refuge from the shallow waters, waves, and currents. It has become a thriving feeding ground, attracting a diverse range of creatures you won't find elsewhere.
When planning your next diving adventure, make sure to include Richelieu Rock in your itinerary. Its natural beauty, incredible marine life, and unique geological features will undoubtedly leave you with memories that will last a lifetime.
Richelieu Rock: The Premier Dive Site in Surin Islands National Park, Thailand.
Diving Conditions Score for Richelieu Rock, Koh Surin in Thailand
6.7
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Richelieu Rock, Koh Surin in Thailand
Depth
25m
Visibility
17m
Experience Level
beginner
advanced
Weather Conditions for Richelieu Rock, Koh Surin in Thailand
Wave Height
0.52m
Wind Speed
10.9 m/s
Water Temp
30°C
Visibility
2.34km
Cloud Cover
98%
Wave Period
9.15s
Air Temperature
28.8°C
Precipitation
0.9 mm
Detailed 7-Day Diving Forecast for Richelieu Rock
Alpha
Dive Score Chart for Richelieu Rock
Best time to dive: 15:00 with score 8.422614559386975/10. Water conditions: Waves 0.56m, Wind 7.2 m/s.Best night dive time: 19:00 with score 8.214043278084716/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Richelieu Rock: 06:00
Sunset at Richelieu Rock: 18:00
Optimal diving conditions at Richelieu Rock 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.
Best Overall
15:00Score: 8.4/10
Waves: 0.56m (8.7s), Wind: 7.2 m/s
Best Night
19:00Score: 8.2/10
Waves: 0.54m, Wind: 4.3 m/s
Seasonal Analysis for Richelieu Rock, Koh Surin in ThailandAlpha
Historical patterns and best seasons for diving at Richelieu Rock, Koh Surin 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 Richelieu Rock, Koh Surin in Thailand
Winter
Avg. Score: 10.0/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Richelieu Rock, Koh Surin in Thailand
January
Score: 10.0
February
Score: 10.0
March
Score: 10.0
Ideal Conditions for Richelieu Rock, Koh Surin in Thailand
Water Temp
20.9°C / 69.6°F
June
Visibility
20.1m / 65.9ft
May
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for Richelieu Rock, Koh Surin in Thailand
Richelieu Rock, Koh Surin in Thailand shows typical northern hemisphere patterns with June being the warmest month (20.9°C) and December the coldest (16.9°C). The calmest conditions typically occur in January with average wave heights of 0.2m and wave periods of 8.0s. The most comfortable wave conditions are in January 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 0.0mm of precipitation. For beginners, the best time to visit would be during January to March, 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 21, 2026
Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.
The closest dive destination to Richelieu Rock is Koh Surin
5 Dive sites near Richelieu Rock in Koh Surin
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