Best places to visit in Thailand in September

Post at: 2023-03-28, By: Diep Anh
September can be a challenging time to visit Thailand due to unpredictable weather patterns. However, if you plan your trip carefully, you can still have an enjoyable time. In this article, we will be discussing some of the best places to visit in Thailand in September. Exploring Thailand in September: A Rainy Adventure September is […]

September can be a challenging time to visit Thailand due to unpredictable weather patterns. However, if you plan your trip carefully, you can still have an enjoyable time. In this article, we will be discussing some of the best places to visit in Thailand in September.

Exploring Thailand in September: A Rainy Adventure


September is the wettest month in Thailand and all parts of the country experience varying amounts of rainfall. In Bangkok and central Thailand, daytime temperatures are warm, averaging around 30°C (86°F), with nighttime temperatures of about 25°C (77°F). Rain usually occurs in the afternoon and evening, so planning outdoor activities for the morning is recommended.

Northern Thailand experiences less rainfall than the south and central regions, with average temperatures of about 27°C (82°F) in Chiang Mai and Chiang Rai. The southern islands have varying weather conditions in September, with the islands on the west coast receiving heavy downpours and those on the east coast (Koh Samui, etc.) experiencing moderate rainfall and sunnier weather.


Best Places to Visit in Thailand in September

Koh Samui

Koh Samui is a tropical paradise located in the Gulf of Thailand. However, September marks the start of the monsoon season in the region. Despite the onset of the rainy season, Koh Samui still offers visitors warm temperatures with an average daily high of 31°C and an average daily low of 25°C throughout the month. Although there is a slight drop in sea temperatures to 27°C, the water is still very warm and perfect for swimming and water sports.


Ko Samui is still a solid choice for a Thai island getaway in September. Visitors can enjoy staying at Bophut Beach, which offers a number of restaurants and quiet bars in the Fisherman’s Village. In case of rains, this is a great place to spend a few hours. The beach itself may be average by high Thai standards, but it serves as an excellent base to explore other popular beaches such as Chaweng and Lamai. Despite being the rainy season, the east coast, including Koh Samui, enjoys sunnier and brighter days with only moderate rainfall as compared to the islands on the west coast.

Despite the rainy season, Koh Samui can still offer visitors a fun and relaxing getaway in September. Visitors can take advantage of the lower tourist season and enjoy the beautiful scenery, warm temperatures, and unique culture of the island. Remember to pack an umbrella and some light waterproof clothing, but don’t let the rains dampen your spirit for adventure and exploration!



Ayutthaya, a UNESCO World Heritage Site located about 80 kilometers north of Bangkok, is a popular tourist attraction and was the capital of Thailand from 1350 until 1767. September is a wet month in Ayutthaya will quite the rainfall and humidity.


Despite the rain, the climate is still very warm in Ayutthaya in September, with an average maximum temperature of 33°C and an average minimum temperature of 26°C. The mean temperature for the month is 29°C. Visitors to Ayutthaya in September should expect to experience high temperatures with about 25 days having temperatures above 30°C, which is around 83% of the month.

If you are a nature lover, then Kanchanaburi’s waterfalls will be in full force during September, and once every five years, the area floods, making it possible to visit Ayutthaya’s temples by boat. Despite the rain, visiting Ayutthaya in September still offers a unique and memorable experience, with its ancient temples, rich history, and vibrant culture. Be sure to bring waterproof clothing and insect repellent to make the most of your visit.

Hua Hin

Hua Hin is a seaside town located about 200 kilometers southwest of Bangkok. In September, visitors can expect pleasantly warm temperatures with a gentle breeze. However, there is a 61% chance of rain on an average day, with moderate rainfalls of 0.59 in (14.9 mm) when it does rain.


Hua Hin offers a refreshing mix of city and sea with lively markets, good golf courses, and water parks. Plus, there’s excellent accommodation and an ambiance that just keeps getting more hip and cosmopolitan. Additionally, Hua Hin is still a good budget destination with plentiful and cheap seafood, convenient public transport, and a shorter travel time from Bangkok compared to the southern islands. Kings Rama VI and VII even built their summer palaces here in the mid-1920s, showcasing the town’s long-standing prestige.

September might not be the ideal time to enjoy the beach, but there are many other interesting activities that this small town can offer to tourists. So, if you don’t want to avoid the rain and humidity, September is a choice to save some budget on accommodations.


Sukhothai, a UNESCO World Heritage Site in northern Thailand, is a stunning destination to explore the ancient ruins and temples. Even though September is during the rainy season, it’s still worth braving the weather to experience the beauty and history of Sukhothai.


Despite the wet weather, Sukhothai in September is warm with daytime temperatures averaging around 33°C (91°F) and an average of 5.9 hours of sunshine per day. The rainfall, which is spread over 18 days, provides much-needed relief from the heat and helps to create a lush, green landscape.

Visiting Sukhothai during this time also means fewer crowds, allowing for a more peaceful and serene experience. So, don’t let the rain deter you from discovering the treasures of Sukhothai in September.


Tips for Visiting Thailand in September

  • Pack for the weather: September is considered the rainy season in Thailand, so be sure to pack a rain jacket or umbrella. You may also want to bring waterproof shoes.
  • Book accommodations in advance: As September is the low season, some hotels and guesthouses may be closed, so it’s a good idea to book your accommodations in advance.
  • Plan for travel disruptions: Heavy rainfall can cause travel disruptions, such as flooded roads or canceled flights. Be prepared for potential delays or cancellations and have a backup plan.


Special Events in Thailand in September

  • Vegetarian Festival: This festival is celebrated by the Chinese community in Thailand and takes place in various cities, including Bangkok and Phuket. It involves strict vegetarianism, spiritual rituals, and colorful parades.
  • Hua Hin Jazz Festival: This annual music festival takes place in Hua Hin and features local and international jazz musicians.


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