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Racha Noi Bay, Phuket in Thailand

Racha Noi Bay, situated on the east side of the South Island of Racha Noi in Thailand's Phuket Province, is a sought-after dive site for advanced divers. This underwater paradise features a large root system adorned with fascinating megaliths, forming a natural boundary from north to south. Divers can explore depths ranging from 10 meters to 25 meters, encountering enchanting small roots scattered along the sandy seabed. The highlight of Racha Noi Bay is the megalithic area, boasting a striking long slot on its southern side.

This diving spot offers a chance to encounter majestic manta rays, which often grace the depths around the megaliths. Zebra sharks are commonly spotted in the deeper sections between the north and south points of these magnificent stone formations. Additionally, blacktip sharks and eaglerays frequently surprise divers with their appearances.

With a visibility of approximately 17 meters, Racha Noi Bay offers divers optimal conditions to appreciate the beauty of the underwater world. While the maximum depth reaches 18 meters, it's important for divers to possess an advanced level of diving skills to fully immerse themselves in this captivating dive site.

Come explore the wonders of Racha Noi Bay, a true gem for divers in Thailand!

Diving Conditions Score for Racha Noi Bay, Phuket in Thailand

7.8
Good

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

Dive Site Overview for Racha Noi Bay, Phuket in Thailand

Depth

18m

Visibility

17m

Experience Level

advanced

Weather Conditions for Racha Noi Bay, Phuket in Thailand

Wave Height

0.4m

Wind Speed

1.2 m/s

Water Temp

30.8°C

Visibility

2.6km

Cloud Cover

94%

Wave Period

6.75s

Air Temperature

28.9°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Racha Noi Bay
Alpha

Dive Score Chart for Racha Noi Bay

Best time to dive: 7:00 with score 9.062068627450982/10. Water conditions: Waves 0.42m, Wind 2.3 m/s.Best night dive time: 4:00 with score 8.534536231884058/10.

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

Sunrise at Racha Noi Bay: 06:00
Sunset at Racha Noi Bay: 18:00

Optimal diving conditions at Racha Noi 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
7:00

Score: 9.1/10
Waves: 0.42m (6.8s), Wind: 2.3 m/s

🌙
Best Night
4:00

Score: 8.5/10
Waves: 0.42m, Wind: 3.9 m/s

Seasonal Analysis for Racha Noi Bay, Phuket in Thailand
Alpha

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

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

Ideal Conditions for Racha Noi Bay, Phuket in Thailand

Water Temp

Thermometer Emoji

27.2°C / 81.0°F

August

Visibility

Telescope Emoji

10.4m / 34.1ft

January

Wave Height

Wave Emoji

2.0m / 6.6ft

March

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Racha Noi Bay, Phuket in Thailand

Racha Noi Bay, Phuket in Thailand shows typical northern hemisphere patterns with May being the warmest month (28.5°C) and December the coldest (23.0°C). The calmest conditions typically occur in March with average wave heights of 2.0m 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 0.1mm 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 18, 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 Racha Noi Bay is Phuket

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