The Climate and Best Time to Visit
December to February is the 'Dry Season'. Sunny Skies are typically sunny, with cooler air temperatures (29°C), and minimal rainfall. This is a great time for scuba diving, and many consider this the best time to visit Koh Tao due to the pleasant weather and calm seas. March to May is the 'Hot Season'. The weather is hot and humid, with temperatures peaking around 35°C. The diving conditions are again good at this time of year although some visitors may feel uncomfortable due to the intense heat.
October to November is the "Rainy Season', with frequent but short rain showers, rough seas, and occasional storms. Diving conditions may be impacted, and ferry services can be disrupted. The transition months of June to September offer a mix of sunny days and occasional showers. These months are less crowded than the peak dry season, offering a balance between good weather and fewer tourists. Furthermore, it is an ideal time for diving, as underwater visibility is often good during these months.
If you are interested in visiting to see a whale shark, these great creatures are most frequently encountered here in March and April, or in September and October. Check out our dive site descriptions for details of the conditions in the Koh Tao diving season.
How to Get There
Koh Tao does not have an airport so, one way or another, you will need to arrive by boat, either from the mainland or from one of the nearby islands. Most visitors arrive at Mae Haad Pier on Koh Tao through Samui Island, Surat Thani, Chumphon, or Nakhon Si Thammarat.
From Koh Samui
The most convenient way to get to Koh Tao is from Koh Samui. The Seatran Discovery high-speed ferry leaves from Bangrak Pier (Big Buddha Pier) which is close to Koh Samui International Airport. Ferries run 3 times daily and travel time is 2 hours. The daily Lomprayah High Speed Catamaran from Mae Nam Pier is slightly faster. Songserm from Nathon Pier is a more budget-friendly option, but travel times may be longer. You can book the ferry ticket with a minibus transfer when you arrive at the airport or from countless tour booths dotted around the island. Please see our Koh Samui tourist information page for details on how to get there.
From Bangkok
Since Bangkok is a huge traveller hub, many visitors will arrive here. There are several options:
- The most popular route is to buy an economy bus and ferry combo ticket. This daily transfer service runs from Khao San Road in Bangkok to Chumphon by road, then uses the ferry to Koh Tao. It takes nearly 10-16 hours. Lomprayah and Songserm operate this service (see website links above).
- Fly from Bangkok to Koh Samui (see above), Surat Thani, Chumphon, or Nakhon Si Thammarat, then catch the ferry. There are close to a dozen different low-cost domestic flight providers in Thailand.
- It is also possible to catch the sleeper train to Chumphon, then catch the ferry. These trains are more comfortable than the bus as they have sleeper carriages. The boat companies provide free transfers between their piers and the train station.
Please see our Thailand tourist information page for details on how to get to Bangkok.
From Koh Phangan
If you happen to be on Phangan Island prior to your visit, it's very simple to get to Koh Tao. Simply catch a daily ferry service from Seatran Discovery, Lomprayah or Songserm. The journey takes just over 1 hour.
From the Andaman Coast
There are 2 options for travelling to Koh Tao from the popular tourist centres of the south - Phuket, Krabi, Koh Phi Phi and Khao Lak:
- You can fly from Krabi or Phuket international airports to either Koh Samui, Chumphon or Surat Thani, then catch the ferry boat service (see details above).
- Or you can purchase a minibus/boat ticket to Koh Tao, available from any good travel agency in those areas.
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Where to Stay
Koh Tao offers an exceptional range of accommodations to suit every traveler, from luxurious 4-star beachfront resorts to budget-friendly backpacker dormitories and everything in between. Our trusted partner, HotelsCombined.com, provides comprehensive options to match both your preferences and budget.
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