Koh Tao
เกาะเต่า · Surat Thani Province
Population
3K
Budget / Month
$425
Internet
15 Mbps
Best Season
March to September (calm seas, best visibility up to 30m)
About Koh Tao
Koh Tao is a tiny island that has become the cheapest and most popular place on earth for PADI certification. Tens of thousands of backpackers come annually for Open Water courses priced at levels that undercut virtually every other dive destination globally. The island's coral reefs are accessible, conditions are generally forgiving for beginners, and intense competition among dive schools keeps prices low.
Beyond diving, Koh Tao offers beautiful snorkeling bays (Shark Bay with its blacktip reef sharks and turtles is a highlight), rocky viewpoints, and a social backpacker scene centered on Sairee Beach. Nightlife features beach bars, fire shows, and bucket drinks — more mellow than Koh Phangan but firmly aimed at the 20-something crowd.
Infrastructure is basic with occasional power outages and limited freshwater. Everything costs more because it arrives by boat. The island has a complicated safety reputation due to past incidents, but most visitors have a straightforward experience of diving, snorkeling, and socializing.
Historical Note
Koh Tao (Turtle Island) was named for its turtle-like shape. Previously a political prison island, it developed as a dive destination in the 1990s and now certifies more divers annually than any other location worldwide.
Best time to visit: March to September (calm seas, best visibility up to 30m)
At a Glance
Thai Name
เกาะเต่า
Province
Surat Thani
Region
Southern
Population
3,000
Area
21 km²
Elevation
294 m
Postal Code
84360
Airport
USM
Local Language
Thai, English
Cost of Living
budget
/month15,300 THB
~$425 USD
comfortable
/month36,200 THB
~$1,006 USD
luxury
/month71,500 THB
~$1,986 USD
food
| Item | Low (THB) | High (THB) |
|---|---|---|
| Street food meal | 60 | 100 |
| Restaurant meal (local) | 80 | 150 |
| Western restaurant meal | 200 | 400 |
| Coffee (cafe) | 60 | 100 |
| Beer (bar) | 80 | 120 |
| Water bottle (1.5L) | 20 | 30 |
| Bucket drink | 150 | 250 |
accommodation
| Item | Low (THB) | High (THB) |
|---|---|---|
| Hostel dorm bed | 250 | 500 |
| Fan bungalow | 400 | 800 |
| Air-con room | 800 | 2,000 |
transport
| Item | Low (THB) | High (THB) |
|---|---|---|
| Motorbike rental (day) | 200 | 350 |
| Longtail boat taxi | 100 | 300 |
entertainment
| Item | Low (THB) | High (THB) |
|---|---|---|
| PADI Open Water course | 8,500 | 10,000 |
| Fun dive (2 dives) | 2,000 | 2,800 |
| Snorkeling trip (day) | 600 | 1,000 |
Internet & Connectivity
Speed Test Averages
vs Bangkok Average (200 Mbps)
8% of Bangkok speed
Providers
Coworking Spaces
1
Weather & Climate
March to September for calmest seas and best visibility (up to 30+ meters). October to December can have rough seas. Peak tourist months are December to February and July to August.
| Month | High °C | Low °C | Rain (mm) | Humidity |
|---|---|---|---|---|
| Jan | 29 | 24 | 50 | 75% |
| Feb | 30 | 24 | 20 | 72% |
| Mar | 31 | 25 | 20 | 72% |
| Apr | 33 | 26 | 50 | 74% |
| May | 33 | 26 | 120 | 78% |
| Jun | 32 | 26 | 100 | 76% |
| Jul | 32 | 26 | 100 | 76% |
| Aug | 32 | 26 | 100 | 76% |
| Sep | 32 | 25 | 130 | 78% |
| Oct | 31 | 25 | 250 | 82% |
| Nov | 30 | 25 | 300 | 84% |
| Dec | 29 | 24 | 180 | 80% |
Things to Do
PADI Open Water Certification
The island's main attraction. 3-4 day course with classroom, pool, and ocean dives. The cheapest PADI certification worldwide.
Snorkeling at Shark Bay
Shallow reef where blacktip reef sharks and turtles are regularly visible from the surface. One of Thailand's best snorkeling spots.
Koh Nang Yuan
เกาะนางยวน
Three tiny islands connected by a stunning sandbar just off Koh Tao's northwest coast. Iconic views and excellent snorkeling.
John Suwan Viewpoint
Short hike to a panoramic viewpoint over the southern tip of the island with views of Shark Bay and the coast.
Tanote Bay
Rocky bay on the east coast with excellent snorkeling, cliff jumping, and a chill vibe away from the Sairee crowds.
Sairee Beach Sunset
The main 1.7 km beach and social hub. Watch the sun go down with a drink from a beach bar. Reliably beautiful.
Food & Dining
-
Fresh Seafood BBQ
Beachside barbecues with grilled fish, squid, and prawns. Best on Sairee Beach and at Mae Haad pier restaurants.
150-400
Sairee Beach restaurants
ผัดไทย
Pad Thai
Widely available and geared toward tourists. Street stalls offer the most authentic and cheapest versions.
60-100
Street stalls at Mae Haad
แกงเขียวหวาน
Green Curry
Standard Thai menu item available everywhere. Quality varies but the best versions use fresh local coconut milk.
80-150
Local restaurants at Sairee and Mae Haad
-
Smoothie Bowls
Acai and tropical fruit smoothie bowls catering to the dive and yoga crowd. Several cafes specialize in health food.
120-200
Health cafes on Sairee Beach
Night Markets
- Mae Haad evening food stalls
Accommodation
Hostel Dorm
250 - 500
THB / night
Budget Hotel
400 - 800
THB / night
Mid-Range
800 - 2,000
THB / night
Luxury
6,000 - 15,000
THB / night
Studio /mo
6,000 - 10,000
THB / night
1BR /mo
8,000 - 15,000
THB / night
Best Areas for Tourists
Best Areas for Long Stay
Booking Tip
Many dive schools offer free or discounted accommodation with course bookings — always ask. Peak season (Dec-Feb, Jul-Aug) requires advance booking for popular hostels.
Getting There from Bangkok
Koh Samui Airport
Airport Code: USM
Flight to Surat Thani + bus + ferry
1 hour flight + 4-5 hours bus/ferry
2,500-4,500 THB
Train/bus to Chumphon + ferry
8-10 hours + 1.5-2 hours ferry
800-1,500 THB
Ferry from Koh Phangan
1 hour
300-500 THB
Getting Around
Walking
WidespreadSairee Beach is walkable. Mae Haad is 15 min walk from Sairee.
Free
Motorbike rental
WidespreadRoads are steep and accidents very common. Experienced riders only.
200-350/day
Longtail boat taxi
Tourist areas onlyWater taxi between beaches. Negotiate prices.
100-300
Neighborhoods
Sairee Beach
Backpacker beach townThe main strip with the longest beach, most restaurants, bars, dive schools, and hostels. Where 80% of visitors stay and the social hub of the island.
Best for: Social travelers and backpackers
Chalok Baan Kao
Relaxed and quieterSouthern bay that is quieter than Sairee with more families and long-stayers. Good snorkeling nearby and calmer nightlife.
Best for: Long-stayers and families
Festivals & Events
Koh Tao Festival
Environmental awareness events, beach cleanups, and dive-related activities organized by the diving community.
New Year's Eve Beach Party
Big beach parties on Sairee with fire shows, music, and countdown celebrations.
Practical Info
Hospital
Small clinic on island; serious injuries require evacuation to Koh Samui or Surat Thani
Best SIM Provider
AIS
ATM Availability
Common
Language Tip
English widely spoken thanks to the tourism-dependent economy. One of the most English-friendly islands in Thailand.
Drinking Water
Do not drink tap water. The island has limited freshwater supply.
Tipping Culture
Not expected but common at dive schools and bars
7-Eleven Density
Common
Emergency Numbers
Tourist police 1155, Emergency 191
Day Trips
Koh Nang Yuan
Three tiny connected islands with iconic sandbar and excellent snorkeling. Just 5 minutes by longtail from Koh Tao.
Around-Island Snorkeling Tour
Boat tour hitting multiple bays and snorkel spots around the island including Japanese Garden, Shark Bay, and Mango Bay.
Nearby Cities
Frequently Asked Questions
Is Koh Tao the cheapest place for PADI?
Yes, consistently. Open Water courses run 8,500-10,000 THB, often including accommodation. Significantly cheaper than most dive destinations.
Is the diving actually good?
For beginners, excellent — calm conditions, abundant marine life, good visibility. For experienced divers, Sail Rock is outstanding. House reefs are good but not world-class.
Is Koh Tao safe?
The vast majority of visitors have no issues. Motorbike accidents are the main safety concern. There have been isolated serious crime incidents. Use common sense, especially at night.
How do I get there?
Most common: fly to Surat Thani, combined bus+boat (5-6 hours). Alternative: night train to Chumphon, ferry (1.5-2 hours). Or ferry from Koh Samui/Phangan.
When is the best diving?
March to September for calmest seas and best visibility up to 30+ meters. October to December can have rough seas.
Can I work remotely?
Internet is inconsistent with power outages. No proper coworking spaces. Better for a dive trip than a work base.