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Ko Tae Nai, Koh Tao

Located just 10 minutes south of Thongsala, Ko Tae Nai is a captivating diving destination nestled in the Gulf of Thailand. This idyllic island is home to a gentle sloping reef along its western side, with depths reaching up to 7m. Whether you're a beginner or an experienced dive enthusiast, Ko Tae Nai offers a mesmerizing underwater world waiting to be explored.

One of the unique attractions of Ko Tae Nai is its artificial coral nursery, providing a nurturing environment for a diverse range of marine life. Divers can witness an abundance of vibrant tropical reef fish, including bannerfish, angelfish, butterfly fish, sergeant majors, and even the occasional majestic turtle sighting.

With exceptional visibility of up to 20m and a maximum depth of 12m, this dive site guarantees breathtaking underwater experiences. Although there may be mild currents at times, divers can confidently navigate the site while immersing themselves in the mesmerizing marine ecosystem.

Discover the awe-inspiring beauty of Ko Tae Nai, a beginner-friendly dive site perfect for exploring the vibrant marine life of the Gulf of Thailand. Start planning your dive adventure today.

Diving Conditions Score for Ko Tae Nai, Koh Tao

7.9
Good

Good diving conditions!
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Ko Tae Nai, Koh Tao

Depth

12m

Visibility

20m

Experience Level

beginner

Weather Conditions for Ko Tae Nai, Koh Tao

Wave Height

0.08m

Wind Speed

7.1 m/s

Water Temp

31.2°C

Visibility

36km

Cloud Cover

73%

Wave Period

2.25s

Air Temperature

28.8°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Ko Tae Nai
Alpha

Dive Score Chart for Ko Tae Nai

Best time to dive: 13:00 with score 8.729298245614036/10. Water conditions: Waves 0.08m, Wind 4 m/s.Best night dive time: 18:00 with score 7.938098412698413/10.

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

Sunrise at Ko Tae Nai: 06:00
Sunset at Ko Tae Nai: 18:00

Optimal diving conditions at Ko Tae Nai 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
13:00

Score: 8.7/10
Waves: 0.08m (1.9s), Wind: 4 m/s

🌙
Best Night
18:00

Score: 7.9/10
Waves: 0.08m, Wind: 6.3 m/s

Seasonal Analysis for Ko Tae Nai, Koh Tao
Alpha

Historical patterns and best seasons for diving at Ko Tae Nai, Koh Tao

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 Ko Tae Nai, Koh Tao

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 Ko Tae Nai, Koh Tao

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

Ideal Conditions for Ko Tae Nai, Koh Tao

Water Temp

Thermometer Emoji

27.0°C / 80.6°F

August

Visibility

Telescope Emoji

12.4m / 40.7ft

March

Wave Height

Wave Emoji

1.4m / 4.6ft

March

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Ko Tae Nai, Koh Tao

Ko Tae Nai, Koh Tao shows typical northern hemisphere patterns with June being the warmest month (28.1°C) and December the coldest (22.5°C). The calmest conditions typically occur in March with average wave heights of 1.4m 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 0.6mm 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.

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

Last updated: 1 min. ago - Jun 18, 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.

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