The Best Time To Visit Koh Samui, Thailand: When Is The Weather Good?

Koh Samui Weather Front

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Thailand’s climate is dominated by the South Asian tropical monsoon, characterized by active summer and rainy seasons. Koh Samui has something to offer throughout the year; each month there is at least one nationwide public holiday.

What’s the Best Time to Visit Koh, Samui, Thailand?

The best time to visit Koh Samui is between November and early April when the weather is warm and dry. The average temperature during this time is around 30 degrees Celsius (86 degrees Fahrenheit).

However, if you are looking to avoid crowds, the best time to visit Koh Samui is between mid-April and October. This is the country’s low season when hotel prices are cheaper and there are fewer tourists. The weather during this time can be quite hot and humid, with temperatures reaching up to 40 degrees Celsius (104 degrees Fahrenheit).

What is the Weather Like in Thailand During All Four Seasons?

The weather in Thailand is tropical and generally hot and humid all year round, with average temperatures ranging from 28-32°C. However, the country experiences distinct wet and dry seasons and the best time to visit Thailand depends on which weather conditions you prefer.

The wet season runs from May to October when rainfall is at its heaviest. This is also the peak tourist season, so expect higher prices and crowds at popular destinations. The majority of the country is covered in lush greenery during this time, making it a great time for nature lovers.

The dry season runs from November to April, when rainfall is minimal and temperatures are more pleasant. This is the ideal time to visit if you want to avoid crowds and enjoy cheaper prices. Keep in mind that many parts of the country will be quite dry and dusty during this period.

Best Time to Travel in Thailand

The best time to travel in Thailand is during the cool season, which runs from November to February. This is when the weather is at its most pleasant, with average temperatures around 27 degrees Celsius. You’ll also find that there are fewer crowds during this period, so you can enjoy a more relaxed holiday.

If you’re looking for the best time to visit Koh Samui for a beach holiday, then you should travel between March and October. This is when the weather is at its warmest, with average temperatures around 32 degrees Celsius. However, it’s also worth noting that this is the wet season in Thailand, so you may experience some rain during your trip.

When Should I Avoid Visiting Koh Samui for the Best Weather?

Generally speaking, the best time to visit Koh Samui is during the dry season, which runs from November to April. However, this doesn’t mean that you should avoid visiting the country altogether during the wet season, as there are still plenty of great places to visit and things to do.

If you’re looking to avoid the wet weather, then you should try and visit Thailand during February and March, as these are typically the driest months of the year. However, it’s worth noting that even during these months there can be occasional downpours, so it’s always best to be prepared for rain.

If you don’t mind a little bit of rain then you could also consider visiting Koh Samui during the shoulder months of October and November, or April and May. These months usually see less rain than the wet season but more than the dry season, so you can still enjoy all that Koh Samui has to offer without having to worry about constant downpours.


Overall, the best time to visit Thailand is during the dry season which runs from November to April. The weather is good during this time with little rain and cool temperatures. However, it should be noted that this is also the peak tourist season so accommodation and flights may be more expensive. If you’re looking to avoid the crowds, consider visiting Thailand during the shoulder seasons of October and May when the weather is still pleasant but there are fewer tourists around.