Best Time to Visit Thailand Beaches and Islands (In the Andaman Sea and the Gulf of Thailand)

‘Krabi, Phuket, Koh Samui…’ From our personal experience, not a single conversation with travelers has gone by without them mentioning at least one of these islands, or all three (and sometimes more). The comments following the names of Thailand beaches and islands are either ‘It’s so beautiful. This is my third trip here.’ or ‘We were there for 10 days, but it was cloudy and rainy every day.’ (with a pout).

Come to think of it, even us locals make the same mistake sometimes, heading to the wrong side of the sea at the wrong time of year. After throwing up for the third time on a very rocky boat ride to Koh Lipe and spending the whole trip at our wooden hut because no boats were allowed to set sail during the heavy monsoon, we learned our lesson the hard way.

Luckily, you don’t have to put yourself through what we did. Read on to find out more about Thailand monsoon season and when your Thailand beaches and islands of choice are nice and sunny.

When is Thailand Monsoon Season?: Koh Hong, Krabi

Best time to visit Thailand beaches and islands: This picturesque shot of Koh Hong, Krabi awaits if you avoid visiting during Thailand monsoon season

Know Your Time and Thailand Monsoon Season

Since Thailand lies between the Andaman Sea on the west and the Gulf of Thailand on the east, Thailand monsoon season varies from coast to coast. The good news is, there are always sunny beaches to lay on all year round.

Thailand has two major monsoons. The southwest monsoon whirls out from the Indian Ocean from May through October, bringing constant drizzle and heavy rainstorm to the whole country. The northeast monsoon from the Pacific Ocean blows through the South China Sea and hits the east coast of southern Thailand from November to February.

Now, if you don’t have a mental map of Thailand and are struggling to locate the dreamy islands, we’ve rounded up some of the most beautiful ones on each coast below.

Know Your Place in the Andaman Coast

Krabi (Railay Beach), Phuket, Phi Phi Islands, and Koh Lipe are among the grandest and best-known names when it comes to islands on the Andaman coast of Thailand. High (we’re talking about the travel season) and dry, during November and March, they make for idyllic tropical Christmas, New Year and Valentine’s destinations.

The best time to visit Thailand islands: Koh Nang Yuan, Gulf of Thaialnd

ฺBest time to visit Thailand beaches and islands: The iconic view of Koh Nang Yuan in the Gulf of Thailand

Know Your Place in the Gulf of Thailand

Koh Tao, Koh Samui and Koh Phangan instantly spring to mind when it comes to the east coast. Sunny during most foreign travelers’ summer holiday and located less than one hour via speedboat from each other, the islands are hopped on and off by global feet.

In case you’ve already picked out the coast but not the islands, our TakeMeTour Local Experts will be more than happy to take you on a Cruise from Phuket to Phang Nga Bay on June Bahtra or a private Koh Yao Noi boat tour.

Or if you’re up to exploring more than just our beautiful beaches, check out 100 Best Things to do in Thailand and happy roaming!