September 2025 in Thailand: Festivals and Major Events
September in Thailand offers a gentle start to the season with cultural highlights, music and dance performances, international festivals, and exciting sports challenges. Here’s the full program for the month.
National Event in September
Thai National Flag Day
Under King Rama VI, the tricolor flag, known as thong trai rong, was officially adopted on September 28, 1917. Since then, September 28 has been recognized as Thai National Flag Day, celebrated across the country.
- Date: September 28, 2025
- Where: Nationwide
Festivals in September
Bangkok Gems & Jewellery Fair 2025 – Bangkok
The Bangkok Gems and Jewellery Fair is Asia’s oldest trade exhibition of its kind. Organized by the Department of International Trade Promotion (DITP) and the Gem and Jewelry Institute of Thailand (GIT), the fair showcases a wide range of products, from raw gemstones to finished jewelry.
- Date: September 9–13, 2025
- Where: Queen Sirikit National Convention Centre, Bangkok
Phanom Rung Light Phenomenon (Sunrise) – Buri Ram
Visitors can witness the sunrise shining perfectly through the 15 doorways of Prasat Hin Phanom Rung. This natural phenomenon occurs four times a year, with two sunrises in April and two in September.
- Date: September 8–10, 2025
- Where: Phanom Rung Historical Park, Buri Ram
Music in September
Sting 3.0 Concert
- Date: September 25, 2025
- Where: UOB LIVE, Emsphere
- Tickets: 6,500 / 5,500 / 3,800 / 2,800 THB – Premium VIP Package: 5,500 THB
27th International Festival of Dance and Music
This festival is a major cultural highlight, featuring a diverse program of music, dance, and international performances. This year’s lineup includes the China National Acrobatic Troupe, Cuba Vibra, and Plácido Domingo.
- Date: September 6 – October 15, 2025
- Where: Thailand Cultural Centre
- More info: Official website
Sports in September
Scenic Half Marathon Krabi
This coastal race between Ao Nang Beach and Krabi Town offers breathtaking views of beaches, limestone cliffs, and islands like Ko Phi Phi. Multiple distances are available (3K, 5K, 10K, 21K), with a festive atmosphere blending sports, local culture, and tropical landscapes.
- Date: September 6–7, 2025
- Where: Ao Nang Running Stadium, Krabi
Chiangmai 22K, Doi Suthep
This race starts at Chiang Mai Zoo and runs through both urban and natural landscapes, finishing near the famous Doi Suthep temple. Distances include 5K, 10K, and 22K, all held at night in the cooler atmosphere of the rainy season.
- Date: September 7, 2025
- Where: Chiang Mai Zoo, Huay Kaew Road
- Fee: 619 THB
Loma Run on the Beach – Pattaya
A fun charity race in Pattaya with 5K, 10K, and 21K options, suitable for all levels. The course combines city streets and beach sections, creating a festive and community-driven atmosphere.
- Date: September 21, 2025
- Where: Pattaya, Chon Buri Province
- Fee: Not announced
Chiang Mai 24-Hour Challenge
An endurance event around Nong Khieo Lake where participants select their challenge duration (2h to 24h) and aim for personal distance milestones. With no finish line or stopwatch, it’s a test of mental and physical resilience.
- Date: September 27–28, 2025
- Where: Chiang Mai PAO Park
- Fee: From 564 THB
Road to Gravel – Nakhon Ratchasima
A cycling weekend celebrating both road and gravel biking with two scenic 80 km routes: road in Pak Chong (Saturday) and gravel in Si Khio (Sunday). Not a competitive race, but a festive cycling escape for enthusiasts.
- Date: September 6–7, 2025
- Where: Pak Chong & Si Khio, Nakhon Ratchasima Province
Cultural Events
48th Khong Dee Mueng Nara Fair 2025
Held at the King Rama V Memorial Park, this fair features traditional crafts, food, local arts, dove-singing contests, exhibitions, and traditional boat races. It’s a family-friendly festival that showcases southern Thai identity.
- Date: September 13–22, 2025
- Where: Narathiwat
Akha Swing Festival 2025
This traditional festival marks the Akha New Year and honors the goddess E-Um Sa Yae with giant swing rituals, cultural performances, and tribal markets. Main celebrations take place September 6–7 at Sam Yaek Akha Village, with additional festivities in Ban Phahee and Doi Pha Mee from September 4–8.
- Date: September 4–8 & September 6–7, 2025
- Where: Chiang Rai Province
Chronological Table of Events in September 2025
| Date(s) | Event | Location | Category |
|---|---|---|---|
| September 6–7, 2025 | Scenic Half Marathon Krabi | Krabi (Ao Nang Running Stadium) | Sport |
| Sept. 6 – Oct. 15, 2025 | International Festival of Dance and Music | Bangkok (Thailand Cultural Centre) | Music / Culture |
| September 6–7, 2025 | Akha Swing Festival (Sam Yaek Village) | Chiang Rai | Tradition / Culture |
| September 4–8, 2025 | Akha Swing Festival (Ban Phahee & Doi Pha Mee) | Chiang Rai | Tradition / Culture |
| September 6–7, 2025 | Road to Gravel (Cycling) | Nakhon Ratchasima (Pak Chong & Si Khio) | Sport |
| September 7, 2025 | Chiangmai 22K, Doi Suthep | Chiang Mai Zoo | Sport |
| September 8–10, 2025 | Phanom Rung Light Phenomenon | Buri Ram (Phanom Rung Historical Park) | Tradition / Culture |
| September 9–13, 2025 | Bangkok Gems & Jewellery Fair | Bangkok (QSNCC) | Trade / Exhibition |
| September 13–22, 2025 | Khong Dee Mueng Nara Fair | Narathiwat | Culture / Tradition |
| September 21, 2025 | Loma Run on the Beach | Pattaya, Chon Buri | Sport / Charity |
| September 25, 2025 | Sting 3.0 Concert | Bangkok (UOB Live, Emsphere) | Music |
| September 27–28, 2025 | Chiang Mai 24-Hour Challenge | Chiang Mai (PAO Park) | Sport / Endurance |
| September 28, 2025 | Thai National Flag Day | Nationwide | National Day |
FAQ: Thailand Events in September 2025
What are the main cultural festivals in September 2025?
Highlights include the Khong Dee Mueng Nara Fair in Narathiwat, the Akha Swing Festival in Chiang Rai, and the Phanom Rung Light Phenomenon in Buri Ram.
Which concerts and performances take place in September 2025?
The biggest events are Sting’s concert in Bangkok on September 25 and the International Festival of Dance and Music from September 6 to October 15.
What sports events are happening in September 2025?
Key races include the Scenic Half Marathon in Krabi, the Chiangmai 22K at Doi Suthep, the Loma Run in Pattaya, the Chiang Mai 24-Hour Challenge, and Road to Gravel in Nakhon Ratchasima.
What is the Bangkok Gems & Jewellery Fair?
It’s Asia’s most established trade fair for gemstones and jewelry, held in Bangkok from September 9–13, 2025.
Is there a national day in September?
Yes, September 28 is Thai National Flag Day, celebrating the adoption of the current national flag.
