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Best Times to Visit Thailand

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Best Time to Travel to Thailand


The overall best time to visit Thailand is between November and early April when the weather is just about perfect. Although Thailand has several different regions, it’s best to avoid the months from May to October. The rainy season is technically from July to October, but monsoons and storms can pop up and delay or even ruin your trip as early as May. 

Note that temperatures in Thailand reach their peak between April and May, sometimes exceeding 40C (104F), so if you’re not a fan of the heat, be sure to avoid those months.

Central & Eastern Thailand

These regions have extreme summer temperatures, typically in the mid-’90s during the hottest months of February through April. In the winter months, the temperatures are still relatively warm, settling around the high 70s to the mid-’80s. The rainy season begins around May in this region and goes through October. The rain is frequent but only in short bursts where the humidity relieves itself for an hour.

Northern Thailand

Both the North and Northeast regions have relatively similar seasons. The winters here are significantly cooler due to the higher elevations. Temperatures in winter may even get down to freezing levels on occasion. Spring is a great time to visit these areas, as flowers are in bloom and the weather is dry and cool.

Boats on a Phuket beach
Boats on a Phuket beach
Boats on a Phuket beach[/caption]

Southern Thailand

The seasons in the south are less distinct than in other parts of the country. Two seasons exist, summer and rainy season. The south is divided into two distinct coastal areas: one lying to the East, which includes the Gulf of Thailand, and the other lying to the West of the Thai peninsula, including the Andaman Sea. Visiting the western areas of Phuket, Phang Nga, Krabi is usually best from mid-November through April. This allows travelers to avoid the monsoons that occur during other months. Monsoons tend to make visiting islands by boat dangerous and susceptible to last-minute cancellations by operators.

Visiting the Gulf of Thailand regions of Koh Samui and Hat Yai is best done from December to June. However, this region can also visit during the rest of the year so long as short afternoon showers are a welcome occurrence. The monsoons in this region are not as severe or likely to cancel the day's activities in the Andaman Sea region.

Songkran Festival

Songkran is the celebration of the New Year according to the Thai calendar. It officially starts on April 13 and lasts for three days. Leading up to the holiday, it becomes quite common to splash people with water and toss a colored powder on them. Local monks and family members are honored, and huge water fights break out in the streets. Travelers should carry a cell phone and other cameras in watertight baggies to ensure nothing gets wet.  Please keep in mind that even as a tourist, it is pretty inevitable that you will get wet during Songkran!

Aerial view of the city of Bangkok
Aerial view of the city of Bangkok

Bangkok Weather: Average Temperature and Rainfall

Month Bangkok (central) avg temp ℉ (℃) Bangkok avg rainfall in (mm)
January 80.6 (27) 0.4 (10)
February 82.4 (28) 0.8 (20)
March 84.2 (29) 1.4 (35)
April 86 (30) 3 (75)
May 85.1 (29.5) 8.7 (220)
June 84.2 (29) 5.9 (150)
July 83.3 (28.5) 6.1 (155)
August 82.4 (28) 8.5 (215)
September 80.6 (27) 13.6 (345)
October 80.6 (27) 10.4 (265)
November 78.8 (26) 2 (50)
December 77.9 (25.5) 0.3 (8)

Chiang Mai royal pavilion and garden
Chiang Mai royal pavilion and garden (Jenny Johnston)

Chiang Mai Weather: Average Temperature and Rainfall

Month Chiang Mai (northern) avg temp ℉ (℃) Chiang Mai avg rainfall in (mm)
January 69.8 (21) 0.4 (10)
February 73.4 (23) 0.6 (15)
March 78.8 (26) 0.8 (20)
April 84.2 (29) 2.2 (55)
May 82.4 (28) 6.1 (155)
June 80.6 (27) 4.7 (120)
July 80.6 (27) 6.1 (155)
August 80.6 (27) 8.9 (225)
September 80.6 (27) 8.1 (205)
October 78.8 (26) 4.7 (120)
November 73.4 (23) 2 (50)
December 69.8 (21) .8 (20)

Boats on a Phuket beach
Boats on a Phuket beach
Boats on a Phuket beach[/caption]

Phuket Weather: Average Temperature and Rainfall

Month Phuket (South-west) avg temp ℉ (℃) Phuket avg rainfall in (mm)
January 78.8 (26) 1.4 (35)
February 80.6 (27) 1.6 (40)
March 81.5 (27.5) 3 (75)
April 82.4 (28) 6.3 (160)
May 81.5 (27.5) 11.4 (290)
June 81.5 (27.5) 10.2 (260)
July 81.5 (26.5) 11 (280)
August 81.5 (26.5) 12.2 (310)
September 78.8 (26) 6.1 (410)
October 77.9 (25.5) 13.6 (345)
November 77.9 (25.5) 8.5 (215)
December 77 (25) 2.8 (70)
 

Best Time to Travel to Thailand for Snorkeling and Scuba Diving

Scuba divers and snorkelers should visit Thailand's southernmost coast between November and February when there is less rainfall. With calmer waters and fewer guests, you'll have more time to enjoy the ocean.

When is the best time to visit Thailand for the best weather

Visit Thailand between November through March or even into April or May, when the country is at its driest, to enjoy the best weather. However, a notable exception is the Lower Gulf, which experiences its wettest months from October through December and is home to the idyllic islands of Ko Samui, Ko Phangan, and Ko Tao.

When is the best time to visit Thailand's beaches?

Phuket, Koh Phi Phi, the Similan Islands, and Krabi are best visited between November and March. To visit Koh Samui, Thailand's east coast, from January to March and July to September, is best.


For expert advise on the ideal time to visit Thailand, contact one of Adventure Life's Thailand specialists.

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