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Chalok Bay, Koh Tao in Thailand

Chalok Bay in Thailand is a picturesque beach destination featuring pristine white sand and remarkably clear water, making it an ideal haven for swimming and snorkeling enthusiasts. The beach boasts a gently sloping coral reef, with an offshore beach area. Towards the deeper segment of the bay lies a renowned dive site called Hin Taa Toh, which is particularly suitable for beginner divers.

At this stunning location, divers can marvel at an array of hard and soft coral formations, encounter abundant schools of fish due to the consistent conditions, and spot various species of coral, turtles, crabs, and nudibranchs.

Exploring the rocks on the right side of the bay while snorkeling provides access to a hidden gem known as Taa Toh Lek, a secluded beach where visitors can take a break from underwater adventures and appreciate the breathtaking views of this private bay.

With a visibility of 9 meters and a maximum depth of 10 meters, Chalok Bay offers an immersive underwater experience for divers of all levels, especially those starting their diving journey.

The dive site is conveniently located near Big Bubble Dive School, Haad Tien Beach Resort, and Baan Chalok Ban Kao in the Surat Thani Province of Thailand. Discover the wonders of Chalok Bay and create unforgettable memories in this remarkable diving destination.

Diving Conditions Score for Chalok Bay, Koh Tao in Thailand

7.9
Good

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

Dive Site Overview for Chalok Bay, Koh Tao in Thailand

Depth

10m

Visibility

9m

Experience Level

beginner

Weather Conditions for Chalok Bay, Koh Tao in Thailand

Wave Height

0.14m

Wind Speed

10 m/s

Water Temp

30.3°C

Visibility

15km

Cloud Cover

57.5%

Wave Period

2.4s

Air Temperature

20°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Chalok Bay
Alpha

Dive Score Chart for Chalok Bay

Best time to dive: 6:00 with score 8.49/10. Water conditions: Waves 0.14m, Wind 10 m/s.Best night dive time: 0:00 with score 7.99/10.

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

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

Optimal diving conditions at Chalok 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
6:00

Score: 8.5/10
Waves: 0.14m (8s), Wind: 10 m/s

🌙
Best Night
0:00

Score: 8.0/10
Waves: 0.14m, Wind: 10 m/s

Seasonal Analysis for Chalok Bay, Koh Tao in Thailand
Alpha

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

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

Ideal Conditions for Chalok Bay, Koh Tao in Thailand

Water Temp

Thermometer Emoji

27.2°C / 81.0°F

August

Visibility

Telescope Emoji

11.5m / 37.7ft

March

Wave Height

Wave Emoji

1.6m / 5.2ft

March

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Chalok Bay, Koh Tao in Thailand

Chalok Bay, Koh Tao in Thailand shows typical northern hemisphere patterns with June being the warmest month (28.4°C) and December the coldest (23.0°C). The calmest conditions typically occur in March with average wave heights of 1.6m 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 0.2mm 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 12, 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 Chalok Bay is Koh Tao

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Koh Tao

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