Skip to content
Go to Dive Champ home pageDive Champ LogoDive Champ

HTMS Suphairin 313, Wreck, Koh Tao in Thailand

Located just 15 meters north of No Name Pinnacle, this newly sunk wreck is an impressive dive site for divers exploring the underwater depths. Stretching 44.9 meters in length and 7 meters in width, this high-speed attack ship belonged to the Gulf Patrol Fleet of the Royal Thai Navy and was built by the esteemed Singapore Ship Building and Engineering Company Limited.

Situated approximately 100 meters east-southeast of Ko Hang Tao in a depth of around 26 meters, with the ship's mast reaching a depth of 11 meters, this wreck offers an exciting adventure. It is part of the same ship class as the HTMS Hanhak Sattru 312, which can be found in Aow Mao, creating a fascinating link for divers.

Within the wreck, divers can come across a 20mm anti-aircraft cannon at the front and a 50 cal machine gun at the aft. Carefully scuttled to allow safe penetration, this dive site is suitable for divers who possess the appropriate training and experience.

With a visibility of 14 meters and a maximum depth of 23 meters, this dive site caters to both beginner and advanced divers. Located in the captivating waters of Thailand, specifically in the vicinity of Namguyan Island on the Lighthouse trail, Surat Thani Province (Zip: 84360), this dive site offers a unique opportunity to explore the remnants of naval history.

For an exciting and memorable diving experience, don't miss the opportunity to explore this remarkable wreck in Thailand's pristine waters.

Diving Conditions Score for HTMS Suphairin 313, Wreck, Koh Tao in Thailand

8.3
Very Good

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

Dive Site Overview for HTMS Suphairin 313, Wreck, Koh Tao in Thailand

Depth

23m

Visibility

14m

Experience Level

beginner
advanced

Weather Conditions for HTMS Suphairin 313, Wreck, Koh Tao in Thailand

Wave Height

0.22m

Wind Speed

13 m/s

Water Temp

30.6°C

Visibility

37.62km

Cloud Cover

81%

Wave Period

2.4s

Air Temperature

27.7°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for HTMS Suphairin 313, Wreck
Alpha

Dive Score Chart for HTMS Suphairin 313, Wreck

Best time to dive: 12:00 with score 8.565344444444444/10. Water conditions: Waves 0.2m, Wind 5.7 m/s.Best night dive time: 0:00 with score 7.8269373983739845/10.

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

Sunrise at HTMS Suphairin 313, Wreck: 06:00
Sunset at HTMS Suphairin 313, Wreck: 18:00

Optimal diving conditions at HTMS Suphairin 313, Wreck 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
12:00

Score: 8.6/10
Waves: 0.2m (2.4s), Wind: 5.7 m/s

🌙
Best Night
0:00

Score: 7.8/10
Waves: 0.08m, Wind: 16.3 m/s

Seasonal Analysis for HTMS Suphairin 313, Wreck, Koh Tao in Thailand
Alpha

Historical patterns and best seasons for diving at HTMS Suphairin 313, Wreck, Koh Tao 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 HTMS Suphairin 313, Wreck, Koh Tao 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 HTMS Suphairin 313, Wreck, Koh Tao in Thailand

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

Ideal Conditions for HTMS Suphairin 313, Wreck, Koh Tao in Thailand

Water Temp

Thermometer Emoji

21.0°C / 69.8°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 HTMS Suphairin 313, Wreck, Koh Tao in Thailand

HTMS Suphairin 313, Wreck, Koh Tao in Thailand shows typical northern hemisphere patterns with June being the warmest month (21.0°C) and December the coldest (17.0°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 19, 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 HTMS Suphairin 313, Wreck is Koh Tao

Koh TaoKoh Tao

Koh Tao

47 Dive sites near HTMS Suphairin 313, Wreck in Koh Tao

Find more dive sites in Thailand

ThailandThailand

Thailand

Got feedback?

Help us improve this dive site by giving us feedback.