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Stonehenge, Koh Similan in Thailand

Located at the northernmost tip of Thailand's Island 4, this dive site offers a captivating and thrilling underwater experience. Immerse yourself in the midst of magnificent boulders while exploring the crystal-clear waters. It's important to note that the site typically has a consistent current.

As you descend into the depths, you'll be mesmerized by the vibrant soft corals, and if you're lucky, you may encounter graceful rays and even an elusive reef shark. The site is abundant with triggerfish and boxfish, creating a lively and colorful underwater ecosystem.

Keeping in mind that the current flows northward, caution is advised not to venture too far away from the safety of the rocks, as it's easy to unknowingly drift away. Seek refuge among the rocks to enjoy the dive site's distinctive rock formations, providing an effortless diving experience.

For an enchanting underwater adventure, explore the captivating route leading towards Princess Bay. Here, you'll discover delightful coral gardens teeming with diverse marine life, including shimmering glassfish.

With a remarkable visibility of 17 meters and a maximum depth of 20 meters, this dive site is suitable for both beginner and advanced divers. It serves as a perfect starting point for your underwater exploration in Phang-nga Province, Thailand.

Diving Conditions Score for Stonehenge, Koh Similan in Thailand

6.1
Above Average

Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Stonehenge, Koh Similan in Thailand

Depth

20m

Visibility

17m

Experience Level

beginner
advanced

Weather Conditions for Stonehenge, Koh Similan in Thailand

Wave Height

1m

Wind Speed

10 m/s

Water Temp

18°C

Visibility

15km

Cloud Cover

57.5%

Wave Period

8s

Air Temperature

20°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Stonehenge
Alpha

Dive Score Chart for Stonehenge

Best time to dive: 6:00 with score 7.113333333333333/10. Water conditions: Waves 1m, Wind 10 m/s.Best night dive time: 0:00 with score 6.613333333333333/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Stonehenge: 06:00
Sunset at Stonehenge: 18:00

Optimal diving conditions at Stonehenge 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
6:00

Score: 7.1/10
Waves: 1m (8s), Wind: 10 m/s

🌙
Best Night
0:00

Score: 6.6/10
Waves: 1m, Wind: 10 m/s

Seasonal Analysis for Stonehenge, Koh Similan in Thailand
Alpha

Historical patterns and best seasons for diving at Stonehenge, 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 Stonehenge, Koh Similan 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 Stonehenge, Koh Similan in Thailand

January
Score: 10.0
February
Score: 10.0
March
Score: 10.0

Ideal Conditions for Stonehenge, Koh Similan in Thailand

Water Temp

Thermometer Emoji

20.9°C / 69.6°F

June

Visibility

Telescope Emoji

20.1m / 65.9ft

May

Wave Height

Wave Emoji

0.2m / 0.7ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Stonehenge, Koh Similan in Thailand

Stonehenge, 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.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 22, 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 Stonehenge is Koh Similan

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Koh Similan

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