Scuba Diving in Thailand

Explore 515 dive sites and 298 dive centres in Thailand. Conditions, marine life, and the best time to dive.

Thailand Diving at a Glance

6 dive regions, 515 dive sites, 298 dive centres, 378 marine species recorded.

Travel Advisories for Thailand

UK FCDO: Advises against all but essential travel to parts.

Best Time to Dive in Thailand

The best months to dive in Thailand are January, February, March, based on water temperature, visibility, wave conditions, and currents.

Month-by-Month Diving Conditions

  • January: Great, water 28.4°C, current 6.3 cm/s
  • February: Great, water 28.6°C, current 6.5 cm/s
  • March: Great, water 29°C, current 8.1 cm/s
  • April: Great, water 29.7°C, current 6.8 cm/s
  • May: Great, water 29.9°C, current 9.8 cm/s
  • June: Great, water 29.4°C, current 12 cm/s
  • July: Great, water 29.2°C, current 14.9 cm/s
  • August: Great, water 29°C, current 17.9 cm/s
  • September: Great, water 28.8°C, current 17.1 cm/s
  • October: Great, water 28.8°C, current 6.1 cm/s
  • November: Great, water 28.9°C, current 6.2 cm/s
  • December: Great, water 28.5°C, current 11.4 cm/s

Recommended Packing List for Thailand

Based on average water temperature of 29.0°C, currents 10 cm/s.

  • Shorty or Rashguard - warm 29°C water needs minimal exposure protection
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories

Dive Regions

Frequently Asked Questions

What is the best time of year to go scuba diving in Thailand, considering both the Andaman Sea and Gulf of Thailand?
Thailand offers excellent diving year-round thanks to its consistently warm, tropical waters. Water temperatures generally range from 28°C in January to 30°C in April and May, making it comfortable for diving any time. For more detailed seasonal insights, you can visit our When to Dive guide for Thailand.
What are the visa requirements for international travelers planning a scuba diving trip to Thailand?
Our current data context does not provide specific information regarding visa requirements for international travelers to Thailand. We recommend checking the official website of the Thai Ministry of Foreign Affairs or your country's embassy for the most up-to-date visa regulations before planning your trip.
What kind of marine life can scuba divers expect to see when diving in Thailand?
Divers in Thailand can expect to encounter a rich variety of marine life. The Similan Islands are renowned for sightings of majestic manta rays, while the Andaman Sea is a prime location for spotting impressive whale sharks. To explore more about the species you might encounter, check our Wildlife Database.
What are the typical difficulty levels for scuba diving in Thailand, and are there good options for beginners and advanced divers?
Thailand truly offers diving for every level, from novice to experienced divers. Koh Tao, with its 121 dive sites, is particularly known for accessible reef diving, making it an excellent choice for beginners and those seeking certification. More advanced divers will appreciate the challenging granite boulders and potential for pelagic encounters in areas like the Similan Islands.
How much does it generally cost to go scuba diving in Thailand, including daily dives and certification courses?
Our current data context does not include specific pricing information for daily dives or certification courses in Thailand. Costs can vary significantly based on location, dive center, and course type. We advise contacting one of the 298 dive centers in Thailand directly for current rates and package deals.
Which are the best dive regions or islands in Thailand for scuba diving, and what makes them unique?
Among Thailand's top dive regions, the Similan Islands stand out with 220 dive sites, famous for their dramatic granite boulders and frequent manta ray sightings. Koh Tao, offering 121 sites, is celebrated for its accessible reef diving, ideal for all skill levels. Additionally, the Andaman Sea is well-known for its opportunities to encounter whale sharks, providing diverse experiences across the country.
What are the typical underwater visibility and water temperatures like for diving in Thailand?
Thailand boasts consistently warm water temperatures, ranging from a comfortable 28°C in January to 30°C in April and May, with most months averaging 29°C. Our current data context does not provide specific information on typical underwater visibility. However, the warm, tropical waters generally offer pleasant diving conditions.
Are there options for longer stays or visa extensions for divers who want to spend more time in Thailand?
Our current data context does not contain information regarding options for longer stays or visa extensions in Thailand. For the most accurate and up-to-date details on visa policies and extension possibilities, please consult the official immigration website for Thailand or your nearest Thai embassy or consulate.