September is a quieter month for tourism in Cambodia, but there are still several interesting events taking place across the country. From the Angkor Wat Equinox in Siem Reap to cultural celebrations, exhibitions and national observances in Phnom Penh and other parts of Cambodia, travelers have several opportunities to experience something beyond the country’s usual temples and beaches.
This guide lists the most important Cambodia events in September 2026, including confirmed dates, locations and practical information for travelers.
September is also part of Cambodia’s rainy season, so outdoor events can be affected by weather. If you are traveling during this month, check the latest information before attending an event.
Cambodia Events in September 2026 at a Glance
| Date | Event | Location | Type | Tourist Relevance |
|---|---|---|---|---|
| September 11–13 | Cambodia Digital Commerce Forum and Online Exhibition | Phnom Penh | Business / Technology | Medium |
| September 17 | Anniversary of Koh Ker’s UNESCO World Heritage Listing | Preah Vihear Province | Cultural / Heritage | High |
| September 18–20 | Drawn to the Wild | Siem Reap | Art / Wildlife / Culture | High |
| September 21–23 | Angkor Wat Equinox | Siem Reap | Cultural / Natural Phenomenon | Very High |
| September 21 | Equinox Angkor Run | Siem Reap / Angkor | Sport / Tourism | High |
| September 24 | Constitution Day | Nationwide | National Holiday | Medium |
| September 27 | World Tourism Day | Siem Reap | Tourism / Cultural | High |
| September 28–30 | CamAuto 2026 | Phnom Penh | Trade Exhibition | Low / Medium |
September 11–13: Cambodia Digital Commerce Forum and Online Exhibition
When: September 11–13, 2026
Where: Koh Pich Convention and Exhibition Centre, Phnom Penh
Type: Business, technology and digital commerce
Cambodia’s Ministry of Commerce will hold the third Cambodia Digital Commerce Forum and Online Exhibition in Phnom Penh from September 11 to 13.
The event focuses on Cambodia’s digital economy and includes discussions about e-commerce, artificial intelligence, cybersecurity, digital trust and cross-border logistics.
The exhibition will also showcase Cambodian products, food and beverages, e-commerce services, banking, logistics and other digital services.
This is primarily a business and technology event rather than a tourist festival, but international visitors interested in Cambodia’s growing digital economy may find it interesting.
Tourist tip: If you are staying in Phnom Penh during these dates, check the official event information before visiting because access and registration requirements may vary by activity.
September 17: Koh Ker UNESCO World Heritage Anniversary
When: September 17, 2026
Where: Preah Vihear Province
Type: Cultural heritage
September 17 marks the anniversary of the listing of Koh Ker as a UNESCO World Heritage Site.
Koh Ker was Cambodia’s capital during the 10th century and is known for its remote archaeological landscape and distinctive pyramid temple, Prasat Thom.
The anniversary is particularly interesting for travelers who want to explore Cambodia beyond Angkor Wat.
If you are planning a visit to the Koh Ker area, allow plenty of travel time because it is considerably more remote than the main temple sites around Siem Reap.
September 18–20: Drawn to the Wild
When: September 18–20, 2026
Where: Siem Reap
Type: Art, wildlife and conservation
Drawn to the Wild is a city-wide wildlife art festival taking place in Siem Reap in September.
The festival brings together Cambodian wildlife, art, education and conservation. The public festival opens on September 18, followed by a public exhibition and related activities around Siem Reap.
Selected artworks will remain on display at participating hotels in Siem Reap for approximately one month, from September 19 through October 19.
This makes the event particularly suitable for travelers who are already staying in Siem Reap during the third week of September.
For visitors looking for accommodation in Siem Reap during the festival period, it is worth booking a hotel in Siem Reap in advance, particularly if you want to stay close to the central areas where many activities take place.
September 21–23: Angkor Wat Equinox
When: September 21–23, 2026
Where: Angkor Wat, Siem Reap
Type: Cultural and natural phenomenon
The Angkor Wat Equinox is the most important tourist-focused event on the September calendar.
During the September equinox period, the rising sun appears aligned with the central tower of Angkor Wat, creating a distinctive sunrise view.
The phenomenon attracts photographers and travelers who want to experience a less ordinary side of Cambodia’s most famous temple.
Because the event takes place around sunrise, visitors should arrive very early. September is also part of the rainy season, so clouds and rain can affect the visibility of the sunrise.
If you are planning to attend, consider staying in Siem Reap for at least two or three nights. This gives you more flexibility if the weather is unfavorable on one morning.
See our Angkor Wat sunrise guide for practical advice.
You can also read our Angkor Wat photography guide if you want to photograph the sunrise.
Travelers staying near the temples can also look at our guide to luxury resorts near Angkor Wat.
September 21: Equinox Angkor Run
When: September 21, 2026
Where: Siem Reap and the Angkor area
Type: Sport and tourism
The Equinox Angkor Run will take place on September 21 as part of the September equinox activities in Siem Reap.
Participants are expected to gather at the Preah Reach Damnak Stone Bridge at approximately 4:30 a.m. before proceeding toward the Angkor area.
Authorities expect thousands of participants and visitors, making this an important date for travelers staying in Siem Reap.
If you are not participating in the run but plan to visit Angkor early that morning, allow extra time for transportation and expect increased activity around the city and temple area.
Travelers planning to attend the equinox period should consider booking accommodation in Siem Reap for several nights rather than staying outside the city.
September 24: Constitution Day
When: September 24, 2026
Where: Nationwide
Type: National holiday
September 24 is Cambodia’s Constitution Day, commemorating the adoption of the country’s constitution in 1993.
It is a national public holiday. Government offices and some businesses may operate differently from a normal day.
For tourists, the holiday is unlikely to significantly change a standard itinerary, but it is useful to know about it when planning transport and opening hours.
September 27: World Tourism Day
When: September 27, 2026
Where: Siem Reap
Type: Tourism and cultural event
Cambodia’s Tourism Board lists World Tourism Day in Siem Reap on September 27.
World Tourism Day is an international tourism observance, and Cambodia’s events are intended to highlight the importance of tourism and the country’s cultural and natural attractions.
Siem Reap is a particularly appropriate location because of its role as the gateway to Angkor Archaeological Park.
If you are visiting Siem Reap around September 27, check local announcements for the specific program and public activities planned for the day.
September 28–30: CamAuto 2026
When: September 28–30, 2026
Where: Diamond Island Convention and Exhibition Centre, Phnom Penh
Type: Automotive trade exhibition
CamAuto 2026 is an international automotive exhibition covering auto parts, accessories, vehicle services and repair equipment.
The exhibition is primarily intended for trade and professional visitors rather than ordinary tourists. Admission is free, but the organizer states that the event is restricted to trade, professional and business visitors and requires registration.
If you are visiting Phnom Penh for business or the automotive industry, the event may be relevant. For a normal leisure traveler, it is not a priority attraction.
What Is September Like for Travelers in Cambodia?
September is part of Cambodia’s rainy season. You can expect tropical temperatures, periods of heavy rain and generally greener landscapes than during the dry season.
The rain does not necessarily prevent travel, but outdoor activities can be affected by weather.
This is particularly important for events such as the Angkor Wat Equinox, where visibility depends on the morning sky.
One advantage is that September can be less crowded than the peak dry-season months. Travelers may also find more competitive prices when booking hotels in Siem Reap or other major destinations.
See our best time to visit Siem Reap guide for more information about weather and crowds.
Where to Stay in Cambodia in September
Your choice of accommodation depends on which events you want to attend.
Siem Reap
Siem Reap is the obvious base for the Angkor Wat Equinox, Equinox Angkor Run, Drawn to the Wild and World Tourism Day.
Travelers can compare different areas in our Where to Stay in Siem Reap guide.
If you want a wider selection of properties, see our guide to the best hotels in Siem Reap.
For travelers visiting Angkor with family, our family hotels in Siem Reap guide may be useful.
Phnom Penh
Phnom Penh is the main base for September’s business and exhibition events, including the Digital Commerce Forum and CamAuto.
See our guide to where to stay in Phnom Penh before choosing your accommodation.
If you are looking for hotels with different price levels, our best hotels in Phnom Penh guide compares the main options.
September 2026 Cambodia Events Calendar
| Date | Event | Location |
|---|---|---|
| September 11–13 | Cambodia Digital Commerce Forum and Online Exhibition | Phnom Penh |
| September 17 | Koh Ker UNESCO World Heritage Listing Anniversary | Preah Vihear Province |
| September 18–20 | Drawn to the Wild | Siem Reap |
| September 21–23 | Angkor Wat Equinox | Angkor Wat, Siem Reap |
| September 21 | Equinox Angkor Run | Siem Reap / Angkor |
| September 24 | Constitution Day | Nationwide |
| September 27 | World Tourism Day | Siem Reap |
| September 28–30 | CamAuto 2026 | Phnom Penh |
September Events in Cambodia: What Should Tourists Prioritize?
If you are planning a Cambodia trip specifically around September events, the strongest options for international travelers are concentrated in Siem Reap.
- Angkor Wat Equinox — September 21–23
- Equinox Angkor Run — September 21
- Drawn to the Wild — September 18–20
- Koh Ker UNESCO Anniversary — September 17
- World Tourism Day — September 27
The other September events are more specialized or nationally oriented, but they can still be useful to travelers who happen to be in Phnom Penh or other parts of Cambodia at the right time.
Bottom Line
September is not Cambodia’s busiest festival month, but 2026 has several worthwhile events for travelers.
The biggest tourism-focused event is the Angkor Wat Equinox from September 21 to 23, while Siem Reap will also host the Equinox Angkor Run and Drawn to the Wild art and wildlife festival.
Phnom Penh has several business and trade events during the month, while Constitution Day and World Tourism Day provide additional national and tourism-related dates.
If you are planning a September trip, use this calendar as a starting point and check the official event source before traveling, as schedules and individual programs can change.
Sources
- Cambodia Tourism Board — Events & Festivals — official dates for Koh Ker UNESCO anniversary, Angkor Wat Equinox, Constitution Day and World Tourism Day.
- Drawn to the Wild — Official Website — official dates and program for the Siem Reap wildlife art festival.
- Agence Kampuchea Presse / Ministry of Commerce — Cambodia Digital Commerce Forum and Online Exhibition, September 11–13.
- CamAuto — Official Exhibition Website — CamAuto 2026, September 28–30, Phnom Penh.
- Cambodianess — September equinox and Equinox Angkor Run information.