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

Bay 1 Racha Yai, Phuket in Thailand

Located in the first bay on the east side of Ratchayi Island in Thailand, this dive site offers a tranquil white sandy beach and depths ranging from 5 to 25 meters. From the shallows to the deep waters, there are concrete artificial fish reefs that provide a home to a diverse array of marine creatures and fish. Divers will also have the opportunity to explore a sunken ship at the end of the reef, which has become a popular attraction.

The artificial fish reefs boast an impressive variety of marine life, including the colorful onikizeya, monohana mantis shrimp, elegant butterfly fish, and graceful spadefish. Schools of red mullet and pike are not an uncommon sight. Additionally, divers can observe fascinating macroscopic species such as nudibranchs and shrimp on the sunken ship.

With a visibility of 16 meters and a maximum depth of 17 meters, this dive site is suitable for divers of all levels, from beginners to advanced. It is conveniently located near the Coconut oil and soap Manual Factory in Phuket Province, Thailand.

Enjoy a memorable diving experience at this captivating dive site offering stunning marine biodiversity and intriguing underwater landscapes.

Diving Conditions Score for Bay 1 Racha Yai, Phuket in Thailand

6.7
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 Bay 1 Racha Yai, Phuket in Thailand

Depth

17m

Visibility

16m

Experience Level

beginner
advanced

Weather Conditions for Bay 1 Racha Yai, Phuket in Thailand

Wave Height

0.88m

Wind Speed

23.9 m/s

Water Temp

30.3°C

Visibility

6.3km

Cloud Cover

100%

Wave Period

6.85s

Air Temperature

27.9°C

Precipitation

1.3 mm

Detailed 7-Day Diving Forecast for Bay 1 Racha Yai
Alpha

Dive Score Chart for Bay 1 Racha Yai

Best time to dive: 16:00 with score 7.003256997455471/10. Water conditions: Waves 0.94m, Wind 23.6 m/s.Best night dive time: 4:00 with score 6.713673758865248/10.

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

Sunrise at Bay 1 Racha Yai: 06:00
Sunset at Bay 1 Racha Yai: 18:00

Optimal diving conditions at Bay 1 Racha Yai 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
16:00

Score: 7.0/10
Waves: 0.94m (6.55s), Wind: 23.6 m/s

🌞
Safest Overall
11:00

Score: 7.0/10
Waves: 0.88m (6.85s), Wind: 17.6 m/s

🌙
Best Night
4:00

Score: 6.7/10
Waves: 0.84m, Wind: 21.7 m/s

Seasonal Analysis for Bay 1 Racha Yai, Phuket in Thailand
Alpha

Historical patterns and best seasons for diving at Bay 1 Racha Yai, Phuket 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 Bay 1 Racha Yai, Phuket 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 Bay 1 Racha Yai, Phuket in Thailand

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

Ideal Conditions for Bay 1 Racha Yai, Phuket in Thailand

Water Temp

Thermometer Emoji

27.0°C / 80.6°F

August

Visibility

Telescope Emoji

10.4m / 34.1ft

January

Wave Height

Wave Emoji

2.0m / 6.6ft

November

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Bay 1 Racha Yai, Phuket in Thailand

Bay 1 Racha Yai, Phuket in Thailand shows typical northern hemisphere patterns with May being the warmest month (28.3°C) and December the coldest (22.9°C). The calmest conditions typically occur in November with average wave heights of 2.0m and wave periods of 8.0s. The most comfortable wave conditions are in November 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 0.1mm of precipitation. For beginners, the best time to visit would be during November to January, 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 28, 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 Bay 1 Racha Yai is Phuket

PhuketPhuket

Phuket

44 Dive sites near Bay 1 Racha Yai in Phuket

Find more dive sites in Thailand

ThailandThailand

Thailand

Got feedback?

Help us improve this dive site by giving us feedback.