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Ao Yui

Located approximately 3 km from the pier, this dive site offers a diverse underwater experience. With hard coral formations scattered between depths of 5m to 12m (depending on the tide), divers can witness the mesmerizing beauty of the marine ecosystem. As you venture deeper, you'll encounter a sandy area that serves as a haven for macro enthusiasts. Thanks to its location on Samaesarn Island, you may also experience an exhilarating drift dive when the water rises or falls, making it an ideal spot for divers with advanced skills.

Prepare to be awed by the remarkable variety of nudibranches inhabiting these waters. From the striking Costasiella to the captivating Janolus, Doto, Bornella cf. adamii J.E. Gray, and Melibe, there's no shortage of colorful marine life to admire. Additionally, keep a keen eye out for seahorses, which can be spotted in vibrant yellow or black shades, either resting on pencil urchins or camouflaged in the sandy ocean bed.

With a visibility of approximately 6m and a maximum depth of 14m, this dive site is suitable for divers of all levels, from beginners to advanced. Located in the Gulf of Thailand, this underwater paradise awaits those seeking unforgettable diving experiences.

Diving Conditions Score for Ao Yui

6.9
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 Ao Yui

Depth

14m

Visibility

6m

Experience Level

beginner
advanced

Weather Conditions for Ao Yui

Wave Height

0.36m

Wind Speed

23 m/s

Water Temp

30.8°C

Visibility

34.48km

Cloud Cover

96%

Wave Period

2.4s

Air Temperature

30.5°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Ao Yui
Alpha

Dive Score Chart for Ao Yui

Best time to dive: 9:00 with score 7.887068817204302/10. Water conditions: Waves 0.12m, Wind 16.8 m/s.Best night dive time: 0:00 with score 7.538996825396826/10.

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

Sunrise at Ao Yui: 06:00
Sunset at Ao Yui: 18:00

Optimal diving conditions at Ao Yui 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
9:00

Score: 7.9/10
Waves: 0.12m (3.1s), Wind: 16.8 m/s

🌙
Best Night
0:00

Score: 7.5/10
Waves: 0.24m, Wind: 7.2 m/s

Seasonal Analysis for Ao Yui
Alpha

Historical patterns and best seasons for diving at Ao Yui

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 Ao Yui

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 Ao Yui

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

Ideal Conditions for Ao Yui

Water Temp

Thermometer Emoji

21.3°C / 70.3°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 Ao Yui

Ao Yui shows typical northern hemisphere patterns with June being the warmest month (21.3°C) and December the coldest (17.3°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.

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