Koh Tao is one of the best places in the world for scuba diving, with warm waters, incredible marine life, and dive sites just minutes away. So it’s no surprise we often hear this question:
“How many dives can I do in one day on Koh Tao?”
Quick Answer:
Most Koh Tao diving days include 2 to 4 dives, and some divers even squeeze in a 5th dive at night. Technically, there’s no official limit, no one’s going to stop you at 3 or 6 dives. But the number of safe dives per day depends on your dive profile, nitrogen build-up, and how well you manage your surface intervals.
Some divers on liveaboards or doing pro-level training even log 5-7 dives in a single day - but that takes proper planning, experience, and in many cases… Nitrox (more on that below).
What Really Limits Daily Dive Count?
Whether you’re diving in Koh Tao or anywhere else, your body absorbs nitrogen from your breathing gas while underwater. The more dives you do, the more nitrogen builds up - and the longer your surface intervals need to be to stay within your no-decompression limits (NDL).
Factors that impact your dive day:
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Dive depth
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Dive time
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Surface interval between dives
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How many dives you’ve already done that day
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Nitrogen levels from previous days
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Environmental factors (current, water temp, fatigue)
💡Always use a dive computer and plan conservatively, especially when diving multiple times a day in Koh Tao’s tropical conditions.
Want to Dive More? Try Nitrox on Koh Tao
If you're looking to increase your dive count or maximize bottom time, Nitrox diving in Koh Tao is your best friend.
What is Nitrox?
Also known as EAN, EANx, or Enriched Air Nitrox, it’s a gas blend with more oxygen and less nitrogen than regular air (which is ~21% oxygen). Most Nitrox blends are 32% or 36% oxygen. which means:
Less nitrogen =
Longer no-deco limits =
Shorter surface intervals =
More dives in a day on Koh Tao!
Why Choose Nitrox for Koh Tao Diving?
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Extend your dive time
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Shorten your surface intervals
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Reduce fatigue after multiple dives
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Lower your risk of decompression sickness
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Ideal for doing 3–5 dives per day
We offer both Nitrox fun dives and the PADI Enriched Air (Nitrox) Diver Course, which only takes a few hours and can be done online before you arrive!
What Does a Typical Dive Day Look Like on Koh Tao?
At Coral Grand Divers, we offer multiple Koh Tao dive trips each day:
Morning trip: 2 dives (06:00 – 11:00)
These trips head to offshore and/or deep dive sites such as Chumphon Pinnacle, Southwest Pinnacle, Hin Wong Pinnacle, White Rock, HTMS Sattakut Wreck, and more — accessible for Certified Open Water Divers.
Afternoon trip: 2 dives (12:30 – 16:30)
We explore easier and shallower sites around the island like Twins, Japanese Garden, Mango Bay, and Aow Leuk — perfect for relaxed dives and enjoying vibrant coral life.
Night dive: 1 dive (18:00 – 20:30)
Usually conducted at White Rock dive sites for a magical after-dark experience.
Best Koh Tao Dive Sites for Multi-Dive Days
Koh Tao offers over 25 amazing dive sites, perfect for dive-packed days. Some top picks:
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White Rock – day and night dive hotspot
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Chumphon Pinnacle – deeper site, ideal with Nitrox
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Twins – shallow and easy-going
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Southwest Pinnacle – vibrant and full of life
Tips for Smart Diving on Koh Tao
To stay safe and get the most out of your dives:
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Use a dive computer
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Log and monitor your dives
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Stay hydrated and rested
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Don’t push your limits
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Use Nitrox for repetitive dives
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Take a rest day after a dive-heavy schedule
Ready to Dive Koh Tao?
If you’re here for fun dives, working on your Advanced Open Water, or looking to extend your dive time with Nitrox, we’re here to help!
Ask us about:
Let’s make every dive on Koh Tao count, enjoy longer bottom times, safer dive profiles, and even more underwater magic to fall in love with.
