Anitas Reef, Koh Similan in Thailand
Explore the deep sandy area and witness the vibrant marine life that thrives here. Encounter chinangoes, stingrays, Andaman jawfish, and a variety of symbiotic gobies. Delight in the presence of coral fish, including angelfish and butterflyfish, as well as fascinating macroscopic creatures such as anchovy fish, sperm scorpionfish, and frogfish. The main focal points are adorned with schools of scarlet angelfish, accompanied by schools of bluefin reef fish and pond bonito gracefully swimming nearby.
The picturesque contrast between the pure white sand and the mesmerizing blue sea captivates divers in the deeper regions. In the shallower areas, marvel at the kaleidoscope of colors as you encounter captivating coral formations and an array of coral fish, including yellowfin reef sharks. Prepare to immerse yourself in the tranquil beauty of an idyllic tropical dive experience.
At the heart of this exceptional dive site, you will find a grand boulder rising from 18 meters to within 5 meters of the surface. Adorned with vibrant soft and hard corals, this boulder serves as a haven for a diverse range of species.
With excellent visibility spanning 21 meters and a maximum depth of 21 meters, this dive site is suitable for divers of all levels, including beginners and advanced enthusiasts. Embrace the opportunity to explore this underwater paradise located near Barracuda Point in the stunning Phang-nga Province of Thailand.
Ensure an unforgettable dive experience by immersing yourself in the optimized content of this remarkable dive site.
Diving Conditions Score for Anitas Reef, Koh Similan in Thailand
Good diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Anitas Reef, Koh Similan in Thailand
Depth
21m
Visibility
21m
Experience Level
Weather Conditions for Anitas Reef, Koh Similan in Thailand
Wave Height
0.82m
Wind Speed
10 m/s
Water Temp
29.9°C
Visibility
15km
Cloud Cover
57.5%
Wave Period
8.45s
Air Temperature
20°C
Precipitation
0 mm
Dive Score Chart for Anitas Reef
Best time to dive: 6:00 with score 7.843333333333333/10. Water conditions: Waves 0.82m, Wind 10 m/s.Best night dive time: 0:00 with score 7.343333333333333/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Anitas 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.
Score: 7.8/10
Waves: 0.82m (8s), Wind: 10 m/s
Score: 7.3/10
Waves: 0.82m, Wind: 10 m/s
Seasonal Analysis for Anitas Reef, Koh Similan in ThailandAlpha
Historical patterns and best seasons for diving at Anitas Reef, 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 Anitas Reef, Koh Similan in Thailand
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Anitas Reef, Koh Similan in Thailand
Ideal Conditions for Anitas Reef, Koh Similan 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 Anitas Reef, Koh Similan in Thailand
Anitas Reef, Koh Similan 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 22, 2026