The best time to visit Thailand

Updated: 24th October 2022

Long boat and beach - Best time to visit Thailand - On The Go Tours
Thailand is best travelled during the cool season

Seasons and Weather

Thailand essentially has three seasons – rainy, cool and hot. The hot dry season starts in March and lasts until May. This is followed by the rainy season from May to October. Frequent rains do occur during this time, but generally in short sharp bursts which are sometimes quite spectacular to witness – so certainly bring some waterproof clothing for this time of year. The cool season then lasts from November to February. With dry days and temperatures that are still very warm, this is considered the best time to visit.

Although Thailand broadly follows this weather pattern, there are variations between regions which are further explained below:

What's the climate like in northern Thailand?

The more mountainous areas of northern Thailand experience the greatest range in temperatures, dropping significantly at nighttime during the cool season from November to February. Although you'll need to pack warmer evening clothing, don’t let this put you off as the days are lovely and mild and the countryside is lush and in bloom.

During the hot season from March to May, this region is often much warmer than the central plains, with the northeast in particular having to deal with dust clouds and humidity.

What's the climate like in southern Thailand?

In contrast, temperatures are more consistent in southern Thailand. However, there are differences between the eastern and western coasts. The rainy season hits the west, or Andaman coast, harder than elsewhere in Thailand. Therefore, it's best to visit during the drier months from November to April, when there's also great snorkelling and diving.

The east, or Thailand’s Gulf coast, lies outside of the country’s general weather pattern. This part of the southern peninsula and its islands instead feel the effects of the northeast monsoon, which sees rainfall from October to January, with the highest amount in November.

Thinking of visiting Thailand? Download a copy of our Asia brochure for inspiration.

Climate | Chiang Mai

Temp Min °C121620232424242423221916
Temp Max °C303335363432323232313028
Rainfall (mm)33951773851261051611571571133912

Climate | Bangkok

Temp Min °C222426272727272625252321
Temp Max °C323233343333323232323131
Rainfall (mm)102830711911521561883202315810

Climate | Phuket

Temp Min °C222223242525252524242323
Temp Max °C323334333232313130313131
Rainfall (mm)40304015020024030026040028020010
Best Time to Visit Thailand
Tropical beach Bang Por, Koh Samui's north coast
Thailand's beaches are best visited during the cool season

The Best Time for a Beach Holiday in Thailand

If you’re looking to sun yourself on Thailand’s beaches then the best time to travel is during the cool season from November to February. Although you may require a light sweater during the evenings in any destinations north of Bangkok, you can expect clear skies and much less humidity.

Despite being named the cool season, temperatures are still very warm and perfect for working on your tan. In contrast to the scorching heat of the hot season, you will enjoy a much more pleasant beach break.

Songkran Water Festival celebrated mid-April

See Also

To help further plan your visit to Thailand check out our handy Travel Guide resources:

Best Places to Visit - from beaches to cities, national parks to ancient ruins
Tourist Visas - the lowdown on getting into Thailand
Top Travel Tips - useful information on money, health and shopping
Phuket Vs Krabi - compare Thailand's premier beach resorts
Traveller Reviews - see what our customers think of our Thailand tours
Thailand Video Lounge - travel videos to inspire you

Thailand Trip Styles