Peak months mean clearest visibility, best marine sightings and stable weather. Shoulder is still good. Off-season often has rough conditions or monsoon.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Peak Shoulder Off-season

Best months: Feb–Sep. Book at least 6-8 weeks ahead — peak season fills early.

What you'll see in Koh Tao

Marine life you can spot diving here. Click any creature to find trips that target sightings of it.

About diving in Koh Tao

World-famous for affordable diving with calm waters and incredible marine life year-round.

What pulls divers to Koh Tao: Cheapest Open Water in the world.

Diving conditions are typically calm to moderate, with water temperatures around 27-30°C.

It's a particularly strong fit for beginners, budget divers, backpackers.

Frequently asked questions

When is the best time to dive in Koh Tao?

Peak season is Feb–Sep — clearest visibility, calmest seas, best marine sightings. Shoulder months (Oct–Nov) are still good with thinner crowds. Avoid Jan, Dec unless you are chasing specific seasonal species.

Do Indians need a visa for Thailand?

Visa on arrival. Always confirm latest requirements with the embassy before booking flights.

How long is the flight from India and what does it cost?

Flights from major Indian cities are typically 5-6 hours, with one-way fares around ₹15K-25K. We can help you find the cheapest dates around your dive trip.

What can I see underwater in Koh Tao?

Year-round you will see Turtles, Reef Sharks, Barracuda, Coral Reefs, Triggerfish. Seasonal highlights: Whale Sharks (Mar–Jun).

Not sure which Koh Tao trip is for you?

Tell us your dates, certification level and what you want to see — we'll match you to the right trip in Koh Tao and lock the dates in minutes.

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