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

Mao Bay, Koh Tao in Thailand

Mao Bay is a fantastic dive site in Thailand that offers exceptional underwater exploration. The bay extends towards both the south and north directions, providing divers with diverse opportunities. Towards the north, at a depth of 15 meters, you'll discover an impressive artificial reef that adds to the allure of this diving location. Additionally, the area is adorned with remarkable large boulders that add to its distinctive character.

While diving in Mao Bay, you can encounter a variety of fascinating marine life. Keep an eye out for porcupine fish, pipefish, and plenty of Titan triggerfish, which contribute to the vibrant underwater ecosystem. However, it's important to note that the bay tends to collect a significant amount of litter, particularly empty bottles. To preserve the beauty of this site, we recommend bringing a rubbish bag to properly dispose of any waste you encounter.

Mao Bay's optimal diving conditions include a visibility of 12 meters, ensuring clear views of the underwater marvels. The maximum depth of the dive site reaches 13 meters, making it suitable for divers of all levels, including beginners. With its close proximity to attractions like Nicobar Pigeon, The Place Hill, and Baan Haad Sai Ree, Mao Bay is conveniently located within Surat Thani Province, Thailand.

Experience the wonders of Mao Bay, Thailand, and immerse yourself in a captivating underwater world that promises unforgettable diving adventures.

Diving Conditions Score for Mao Bay, Koh Tao in Thailand

7.4
Good

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

Dive Site Overview for Mao Bay, Koh Tao in Thailand

Depth

13m

Visibility

12m

Experience Level

beginner

Weather Conditions for Mao Bay, Koh Tao in Thailand

Wave Height

0.56m

Wind Speed

23.4 m/s

Water Temp

30.7°C

Visibility

22km

Cloud Cover

96%

Wave Period

3.05s

Air Temperature

29.6°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Mao Bay
Alpha

Dive Score Chart for Mao Bay

Best time to dive: 14:00 with score 7.848933333333333/10. Water conditions: Waves 0.56m, Wind 26.5 m/s.Best night dive time: 18:00 with score 7.274466666666666/10.

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

Sunrise at Mao Bay: 06:00
Sunset at Mao Bay: 18:00

Optimal diving conditions at Mao Bay 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
14:00

Score: 7.8/10
Waves: 0.56m (3.05s), Wind: 26.5 m/s

🌞
Safest Overall
15:00

Score: 7.8/10
Waves: 0.58m (3.1s), Wind: 22.9 m/s

🌙
Best Night
18:00

Score: 7.3/10
Waves: 0.56m, Wind: 24.3 m/s

Seasonal Analysis for Mao Bay, Koh Tao in Thailand
Alpha

Historical patterns and best seasons for diving at Mao Bay, 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 Mao Bay, 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 Mao Bay, Koh Tao in Thailand

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

Ideal Conditions for Mao Bay, 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 Mao Bay, Koh Tao in Thailand

Mao Bay, 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 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 Mao Bay is Koh Tao

Koh TaoKoh Tao

Koh Tao

46 Dive sites near Mao Bay in Koh Tao

Find more dive sites in Thailand

ThailandThailand

Thailand

Got feedback?

Help us improve this dive site by giving us feedback.