Home Travel Guide Thailand Travel Guide Best Time to Visit Thailand 2023

Best Time to Visit Thailand


As far as weather is concerned, the best time to visit Thailand is from November to March, when the sky clears up and the climate is cool. Temperatures remain around 28°C (82.4°F) at this time of year, perfect for visiting the numerous heritage sites or for a beach outing. However, you must be prepared to make your way through the crowds, as this is the peak travel season in Thailand.

In fact, Thailand’s climate varies throughout the country. There are so many great things to do in Thailand at any time of the year. The months from November to February are the best time to visit Northern Thailand (such as Chiang Mai).

In southern Thailand, the east coast and west coast have different climates. The west coast is more favorable in winter (November to February) when diving and snorkeling are at their best. The weather on the east coast of Thailand is fine most of the time. January and February are the best times to visit because of the low rainfall. Avoid visiting the east coast between October and December, when the region experiences heavy rainfall.

Thailand Weather

Located in the middle of the Indochina Peninsula, bordering the Gulf of Thailand in the Pacific Ocean in the southeast and the Andaman Sea in the Indian Ocean in the southwest, Thailand boasts a tropical monsoon climate, featuring three seasons throughout the year: hot season (March – mid-May), rainy season (June – mid-October), and cool season (November – Next February).

Mild and sunny throughout the year, Thailand weather is typically hot and humid. April is the hottest month in Thailand with an average temperature of around 32°C (89.6°F).

June marks the start of the rainy season, with heavy rains lasting until October. September will see the highest rainfall in Thailand, with humidity reaching 80%.

Best Time to Visit Different Regions of Thailand

1. Best Time to Visit Northern Thailand

Northern Thailand weather is different in three different seasons. The best time to visit Northern Thailand is during the cool season, from November to February, as we mentioned above.

Chiang Mai is the main tourist destination in northern Thailand. During the cool season, the average daytime temperature in downtown Chiang Mai is about 16 to 19°C (60.8-66.2°F), and the average temperature in the mountains is usually below 10°C (50°F). Chiang Mai’s vast forest area makes it the best time to hike, with December and January being the peak months for tourists.

2. Best Time to Visit Thailand Phuket

Thailand weather Phuket is warm and humid. The temperature stays between 28°C and 34°C (60.8-66.2°F) all year round. Every year from May to October, it is the rainy season in Phuket, with 280mm of rainfall at its peak in September.

In mid-November, the weather in Phuket is slightly cooler with less rainfall until March of the following year. The best time to visit Phuket is from November to March when the dry season is sunny and dry most of the time. It’s ideal for spending a lot of time at the beach during this time.

3. Best Time to Visit Thailand and Vietnam

Vietnam is another fascinating country in Southeast Asia. Usually, there is no exact best time to visit Vietnam due to the different best time to visit each region.

Overall, though, the best time to visit Vietnam is from February to April. Considering the Thailand weather, the period from February to March is the best time to visit Thailand and Vietnam.

Worst Time to Visit Thailand

If you don’t like to travel in rainy weather, you are advised to avoid traveling to Thailand in August and September. April is the worst time to visit Thailand. If you can’t stand the heat, you are strongly recommended to avoid this period. 

However, you can enjoy the lowest cost on accommodation and admission to scenic spots as well as uncrowded temples and beaches during these times.

There are still some of the best destinations to explore in Thailand these months. For example, head to a cooler northern city like Chiang Mai for a forest hike or enjoy the cool sea breeze at a seaside resort in the afternoon.

In the rainy season, usually, brief downpours occur in the afternoon. The rest of the day is sunny, and you can enjoy most of the day without too much inconvenience.

Thailand Weather by Month - Visit Thailand in Different Months

Thailand in January – Cool Season

▶ Major Event: Chinese New Year (date varies)

▶ Where to Go: Phuket, Krabi, Koh Phi Phi, Ayutthaya or Sukhothai, Chiang Mai, Hua Him, Pattaya

January is one of the best times to visit Thailand, whether it’s for city exploring or beach getaways (except for Koh Samui due to heavy rainfall). January is cool, with temperatures hovering between 23°C and 31°C (73.4-87.8°F) in most places. It’s sunny and dry most of the time, which is comfortable and convenient for outdoor travel.

Thailand in February – Cool Season

▶ Major Events: Flower Festival, Chinese New Year (date varies)

▶ Where to Go: Phuket, Ko Samui, Ko Pha Ngan, Ko Tao, Bangkok, Kanchanaburi, Chiang Mai

Still the best month to go to Thailand, February is the last month of the cool dry season. The weather in Thailand in February is mild and sunny with low humidity, which makes it perfect for sightseeing. By the end of the month, though, even the normally cool mornings in northern cities are starting to heat up.

Thailand in March – Hot Season

▶ Major Event: Makha Bucha

▶ Where to Go: Bangkok, Khao Yai National Park, Ayutthaya, Phang Nga Bay, Krabi, Koh Samui

March marks the start of the hot season in Thailand, with clear skies and temperatures rising to around 30°C (86°F) across the country. Even some northern and central cities have daily highs of 34°C (93.2°F). Still, March is a popular time to visit Thailand, when you can take a vacation at any sun-drenched beach. Showers are possible in March, but rainfall is minimal.

Thailand in April – Hot Season

▶ Major Event: Songkran Festival (Water-Sprinkling Festival)

▶ Where to Go: Khao Sok National Park, Krabi, Koh Samui, Phuket, Ko Pha Ngan

April is the hottest month in Thailand, when temperatures remain high across the country, soaring to 38°C (100.4°F) in some places. April is a good month to go island hopping, allowing you to enjoy snorkeling, scuba diving, and swimming. Songkran is a special way to escape the summer heat in April when water fights take place across the country as part of the festivities.

Thailand in May – Hot Season

▶ Major Events: Royal Ploughing Ceremony, Visakha Bucha

▶ Where to Go: Ko Samui, Hua Hin, Ayutthaya, Chiang Mai, Chiang Rai, Bangkok

Thailand temperature is still high in May. With the increase in rainfall in the second half of the month, Thailand gradually transitions from the hot season to the rainy season. But it doesn’t rain every day, and you’ll encounter plenty of blue sky and sunshine during the May Day holiday. In May, Koh Samui is more suitable than Phuket, and the rainfall in the Gulf of Thailand is much lower than that of the Andaman coast.

Thailand in June – Rainy Season

▶ Major Event: Hua Hin Jazz Festival

▶ Where to Go: Ko Samui, Hua Hin, Krabi, Chiang Mai, Chiang Rai, Sukhothai

Although June is one of the rainy seasons in Thailand, it has the least rainfall compared to other rainy months. Fifteen days of rain are expected. However, the rain is usually short and occurs in the afternoon or evening. Thailand’s countryside at this time ushers in its most beautiful scenery, like a green kingdom.

Thailand in July – Rainy Season

▶ Major Events: Asahna Bucha, HM the King’s Birthday

▶ Where to Go: Chiang Mai, Koh Samui, Ko Tao, Ko Pha Ngan

As rainfall becomes common, temperatures drop slightly in July, ranging from 25 to 32°C (77-89.6°F). July, one of Thailand’s green seasons, is undoubtedly a good time to explore villages in northern or central Thailand to witness the beautiful scenery. Thailand’s southern islands, affected by the July monsoon, bring heavy rain and rough seas to the west coast.

Thailand in August – Rainy Season

▶ Major Event: Birthday of Queen Sirikit

▶ Where to Go: Pattaya, Ko Samet, Ko Tao, Koh Samui

In August, the rains begin to become heavy and it is a slow season for tourists. You can expect a quieter visit to Thailand, with less crowded tourist attractions and relatively cheap accommodation. You are advised to do your sightseeing in the sunny morning, as heavy rains are usually triggered in the afternoon or evening.

Thailand in September – Rainy Season

▶ Major Events: Thai National Flag Day, Buddhist Lent

▶ Where to Go: Koh Samui, Pattaya, Ko Samet, Chiang Mai, Chiang Rai, Lampang

Overall, September is the wettest month in Thailand, seeing the highest rainfall, with humidity reaching 80%. September is a good month to visit Thailand for those on a budget, as flights and accommodation are relatively cheap during this time. Backpackers who love green vistas are in for a treat this month.

Thailand in October – Rainy Season

▶ Major Event: Vegetarian Festival

▶ Where to Go: Bangkok, Kanchanaburi, Pattaya, Hua Hin, Ko Samui

 October is the last month of the rainy season, when temperatures and rainfall start to drop, making it a good month to visit. Heavy afternoon showers usually last only an hour or two, and you can be sure they won’t affect your holiday plans if you plan wisely. Visitors can expect to see a combination of sunshine and showers during their trip.

Thailand in November – Cool Season

▶ Major Event: Loy Krathong

▶ Where to Go: Phuket, Krabi, Phang Nga Bay, Bangkok, Chiang Mai, Chiang Rai, Ayutthaya

November is the best month to visit Thailand when the cool and relatively dry weather makes it a great time to explore Thailand’s temples and historic sites, as well as its charming islands. But be prepared to run into crowds. The good weather is an exception in Koh Samui, where storms and downpours are possible.

Thailand in December – Cool Season

▶ Major Events: Chiang Mai Red Cross & Winter Fair, Christmas Day

▶ Where to Go: Bangkok, Ayutthaya, Chiang Mai, Chiang Rai, Phuket, Krabi

December is a great time to visit Thailand when visitors can enjoy a cool climate with low humidity and expect to see clear blue skies and extended sunshine hours. You can fully explore every corner of Thailand this month, including relaxing by the beach or pool, venturing into the jungle, and visiting temples and historic sites.

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