Secret Reef, Koh Chang
Located in the Gulf of Thailand, our dive site is a small pinnacle close to Blueberry Hill and Hin Larp. With a maximum depth of around 15 meters at its sandy bottom, it is an ideal diving spot for beginners. However, divers should be cautious of the coral reef located at the bottom.
This dive site offers a diverse mix of coral reef, providing a stunning underwater landscape. Explore the vibrant marine life that includes schools of batfish and barracuda. Take in the colorful sight of Christmas tree worm on the hard coral formations. Additionally, you'll encounter numerous species of shrimp and crab during your dive.
With a visibility of 15 meters and a maximum depth of 16 meters, this dive site is a must-visit for beginner divers. Enhance your diving skills and explore the mesmerizing underwater world of the Gulf of Thailand at our site.
This dive site offers a diverse mix of coral reef, providing a stunning underwater landscape. Explore the vibrant marine life that includes schools of batfish and barracuda. Take in the colorful sight of Christmas tree worm on the hard coral formations. Additionally, you'll encounter numerous species of shrimp and crab during your dive.
With a visibility of 15 meters and a maximum depth of 16 meters, this dive site is a must-visit for beginner divers. Enhance your diving skills and explore the mesmerizing underwater world of the Gulf of Thailand at our site.
Diving Conditions Score for Secret Reef, Koh Chang
6.5
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Secret Reef, Koh Chang
Depth
16m
Visibility
15m
Experience Level
beginner
Weather Conditions for Secret Reef, Koh Chang
Wave Height
1.16m
Wind Speed
12.9 m/s
Water Temp
30.1°C
Visibility
4.2km
Cloud Cover
99%
Wave Period
4.85s
Air Temperature
27.1°C
Precipitation
1.7 mm
Detailed 7-Day Diving Forecast for Secret Reef
Alpha
Dive Score Chart for Secret Reef
Best time to dive: 11:00 with score 6.382333333333333/10. Water conditions: Waves 1.16m, Wind 18.3 m/s.Best night dive time: 5:00 with score 5.236033333333333/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Secret Reef: 06:00
Sunset at Secret Reef: 18:00
Optimal diving conditions at Secret Reef 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
11:00Score: 6.4/10
Waves: 1.16m (4.65s), Wind: 18.3 m/s
Best Night
5:00Score: 5.2/10
Waves: 1.16m, Wind: 13.2 m/s
Seasonal Analysis for Secret Reef, Koh ChangAlpha
Historical patterns and best seasons for diving at Secret Reef, Koh Chang
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 Secret Reef, Koh Chang
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 Secret Reef, Koh Chang
January
Score: 10.0
February
Score: 10.0
March
Score: 10.0
Ideal Conditions for Secret Reef, Koh Chang
Water Temp
27.0°C / 80.6°F
April
Visibility
14.7m / 48.2ft
November
Wave Height
1.0m / 3.3ft
January
Wave Period
8.0s
January
Seasonal Insights for Secret Reef, Koh Chang
Secret Reef, Koh Chang shows typical northern hemisphere patterns with June being the warmest month (28.0°C) and December the coldest (22.6°C). The calmest conditions typically occur in January with average wave heights of 1.0m 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). December 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 - Jul 3, 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 Secret Reef is Koh Chang
4 Dive sites near Secret Reef in Koh Chang
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