When is the Best Time to Visit Koh Samui, Thailand?

Garrya Tongsai Bay

The best time to visit Koh Samui


While this tropical paradise experiences favourable weather conditions throughout most of the year, another factor you might want to consider when visiting the island is tourist crowds. So, to enjoy the best of both worlds—when the weather is finest and crowds are minimal—the ideal time to visit Koh Samui would be between May and August.


To make the most of your visit to beautiful Koh Samui, it’s essential to plan ahead so you can enjoy the island’s many outdoor activities when the weather is at its best.

When is the sunny season in Koh Samui?


During the months of December to August, Koh Samui basks in glorious sunshine, making it an ideal time for sun-worshippers and outdoor enthusiasts. With minimal rainfall and temperatures ranging between 25°C to 30°C (77°F to 86°F), it’s the perfect climate to indulge in a range of activities, such as kayaking through crystal-clear waters, exploring nearby islands, and hiking to marvel at majestic vistas.

Over the years, Koh Samui has also become a sought-after destination for beach weddings. Resorts such as Garrya Tongsai Bay Samui offer extraordinary wedding venues set against the island’s breathtaking beauty. From intimate gatherings to lavish celebrations, the hotel's events team can assist in planning every detail of your special day, ensuring an unforgettable occasion in a truly stunning setting.


When is the rainy season in Koh Samui?


From the months of September to November, Koh Samui experiences its rainy season. While this may deter some visitors, it is important to note that the rainfall is typically in short bursts, allowing ample time to enjoy the island. Moreover, the lush greenery that blankets the island during this time adds a touch of enchantment to the landscape and invites visitors to explore indoor facilities.

If world-class spa treatments, soothing yoga sessions, and gourmet dining options sound up your alley, visitors can take advantage of the exceptional amenities offered by the island’s many upscale resorts. Garrya Tongsai Bay Samui, for example, provides well-appointed spaces for guests to unwind and indulge in a little pampering during occasional rain showers. Its 8LEMENTS SPA offers a haven of relaxation amidst natural green surroundings, with a selection of well-being treatments to restore your mind, body and soul.


Rain or shine, captivating Koh Samui offers an array of experiences that will leave you enchanted. Need help planning your visit? Whether you seek relaxation, adventure, or a romantic escape, get in touch with Garrya Tongsai Bay Samui so we can assist with your travel arrangements.