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Cambodia In September: Weather, Where To Go, What To See, Itinerary And FAQ

What to do in Cambodia in September?

Visiting Cambodia in September is a chance to experience the country in its most authentic and vibrant form. The Cambodia September weather is characterized by occasional tropical showers, which refresh the air and paint the landscapes in lush green tones. Far from the peak tourist season, this period allows you to enjoy famous temples and cultural sites in a more peaceful atmosphere. Wondering what to do in September in Cambodia? From exploring the floating villages on rivers and lakes, to hiking through rainforests and admiring rice fields at their greenest, every activity feels more immersive. Despite the rain, September in Cambodia offers a unique mix of tranquility, adventure, and unforgettable scenery.

I. What's the weather like Cambodia in September? 

The Cambodia september weather is defined by the rainy season, with frequent, heavy showers that transform the landscape into a lush green paradise. It is one of the wettest months of the year, sometimes bringing a risk of flooding in rural areas. The rains refresh the air and enhance the scenery, from vibrant rice paddies to swelling rivers. Despite the humidity, the weather in Cambodia in September remains pleasant, with temperatures ranging between 25 and 30°C, maintaining the country’s tropical charm.

Weather in Cambodia in September with sudden and heavy downpours
A trip to Cambodia in September requires being prepared for sudden showers, but it also offers sunny days, perfect for enjoying a peaceful atmosphere, lush landscapes, and a more authentic experience away from the tourist crowds.

II. What to do and see in Cambodia in September?

1. Cambodia Constitution Day 

Constitution Day, celebrated every in 24th day in September in Cambodia, is one of the best festivals in Cambodia, commemorates the adoption of the Constitution in 1993 and the coronation of King Norodom Sihanouk, marking the country's transition to a constitutional monarchy. This day symbolizes Cambodia's commitment to democracy and individual rights, and allows Cambodians to come together to honor their heritage and celebrate their progress.
What to do in Cambodia in September? Constitution Day in Cambodia
What to do and see in September in Cambodia? This holiday holds special significance, recalling Cambodia’s historical trials, including periods of invasions and the Khmer Rouge regime. Although a reduction in public holidays was adopted in 2020, Constitution Day remains, highlighting its importance in the national culture and the country’s resilience.

2. Siem Reap - Angkor Wat

In september in Cambodia, Angkor Wat in Siem Reap is a beautiful and serene place to visit. The lush green surroundings, made vibrant by the rainy season, create a stunning backdrop for exploring the temples. The cooler temperatures and occasional rains of the Cambodia September weather make it easy to walk around comfortably and admire the breathtaking architecture. You can spend time admiring the intricate carvings and beautiful stonework, and the temple's reflections in the nearby water are truly magical.
Siem Reap - Angkor Wat: A Must-Visit Site in Cambodia in September
Visiting Angkor Wat in Cambodia in September means fewer crowds, making for a more peaceful experience. You can explore not only Angkor Wat, but also the nearby temples, such as Ta Prohm and Bayon, which are covered in greenery and give a sense of adventure. Rain showers in September are usually brief, so you can easily plan your visit around them. Overall, September in Siem Reap is a great time to experience the beauty and history of Angkor Wat and its surrounding temples.

3. Phnom Penh

Phnom Penh offers a unique experience for visitors looking to explore Cambodia’s capital city in September. The weather in Cambodia in September is warm, with occasional rain showers that help keep the city green and vibrant. What to do and see in Cambodia in September? Tourists can visit the Royal Palace, a stunning complex that showcases beautiful Khmer architecture and lush gardens. Nearby, the Silver Pagoda is a must-see, with its impressive statues and unique silver tile flooring. The National Museum, with its rich collection of Cambodian art and artifacts, offers a glimpse into the country’s history and culture.
What to Do in Phnom Penh, Cambodia in September?
September in Cambodia is also a great time to stroll along the riverside promenade, where you can enjoy views of the Tonle Sap and Mekong River. The area is lively, with many cafes and restaurants where you can sample local cuisine. Visitors can also explore the bustling markets, such as the Central Market and the Russian Market, to buy souvenirs and sample street food.

4. Tonle Sap - what to do in Cambodia in September? 

Cambodia in September what to see? Tonle Sap, the largest lake in Southeast Asia, takes on a whole new life thanks to the seasonal rains. Water levels rise, transforming the lake into a vast expanse of water. The floating villages, usually accessible by land, are surrounded by water, creating a beautiful and unique landscape. Visitors can take boat rides to explore these villages, experience the daily lives of the locals, and admire the surrounding nature, full of greenery.
Tonle Sap: Discover the Floating Village in Cambodia in September
The rainy season in Cambodia in September also brings a refreshing atmosphere and a diversity of wildlife. Migratory birds flock to the lake, providing nature lovers with ideal opportunities for birdwatching. The lotus fields and rice paddies surrounding the lake become more vibrant during the downpours. It is a calm and soothing time, ideal for enjoying the natural beauty of Tonle Sap while learning about the local culture of the communities living there.

5. Sihanoukville - Welcome to the best beaches

Sihanoukville, located on the southern coast of Cambodia, is a popular destination in September thanks to its beautiful beaches. What to do in Cambodia in september? During this month, beaches like Serendipity and Otres are less crowded, offering a peaceful setting to relax. The waters are warm and ideal for swimming, and the soft sand invites relaxation. While a few showers of the weather in Cambodia in September can occur, they are often short and do not spoil the enjoyment of a day by the sea.
Sihanoukville in Cambodia in September: Welcome to the Best Beaches
In addition to swimming, visitors can enjoy activities like kayaking and snorkeling to explore the colorful marine life. Beachfront restaurants serve delicious fresh seafood, perfect for a meal after a day at the beach. September in Sihanoukville is a great opportunity to experience the natural beauty of the area while enjoying a tranquil and welcoming environment.

6. Battambang

What to do in Cambodia in September? Battambang, Cambodia’s second largest city, offers a great experience for visitors. When it comes to Cambodia September weather, temperatures are pleasant, and while there may be occasional rain showers, they usually don’t last long. The city’s tourist attractions, such as Wat Banan and the famous Bamboo Train, are very popular. Wat Banan, with its ancient stones and beautiful views of the valley, attracts many culture and history enthusiasts. The Bamboo Train, on the other hand, is a unique adventure that allows tourists to travel through the countryside on bamboo wagons.
Battambang: Visit Cambodia’s Second Largest City in September
Explore top things to do and see in Cambodia in September, visitors can also explore the local markets, where they can sample delicious Cambodian specialties such as num banh chok and lok lak. Battambang is surrounded by beautiful landscapes, with rice fields and green hills that offer great opportunities for photography. In Cambodia in September, the city is less crowded with tourists, allowing for a peaceful and authentic atmosphere, ideal for experiencing Cambodian culture.

IV. Itinerary for a trip to Cambodia in September

If you’re planning a trip to Cambodia in September, you may want to check out the Cambodia 9 day itinerary recommended by AUTOUR ASIA -  a trusted Cambodia travel agency.
Day 1: Siem Reap Arrival – Bakheng Sunset
Day 2: Angkor Temples (Angkor Wat – Angkor Thom - Bayon – Banteay Srei – Ta Prohm Temples)
Day 3: Phnom Krom Sunrise – Battambang
Day 4: Battambang – Kampong Luong Floating Boat Ride – Kampong Chhnang
Day 5: Kampong Chhnang – Natural Hot Spring – Kirirom National Park
Day 6: Kirirorom National Park – Koh Rong Sanloem Island
Day 7: Koh Rong Sanloem
Day 8: Koh Rong Sanloem – Sihanouk Ville – Phnom Penh
Day 9: Phnom Penh – Departure
September in Cambodia is a fascinating month to discover this country, offering a unique combination of lush landscapes, pleasant temperatures and a tranquil atmosphere. Although the weather in Cambodia in September is characterized mainly by showers, these enrich the country’s natural beauty and create ideal conditions for exploring its cultural and historical treasures. What to do in Cambodia in September? Travelers can enjoy the serenity of iconic sites, such as the temples of Angkor and picturesque towns like Battambang, while immersing themselves in the daily lives of locals. With authentic experiences around every corner, Cambodia in September is an ideal time to discover the richness and diversity of the country.
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Author:Ngan Ha
English travel marketing expert at Autour Asia ✅ Content verified by: Tran Ba Duy Founder of Autour Asia, with over 20 years of experience in inbound tourism for English-speaking, European, and North American travelers. 🌏 Why trust this travel guide? ✔️ Based on real tours organized by our local team across Vietnam, Cambodia, Thailand, Laos, Bali, and Myanmar. ✔️ Regularly updated to reflect the latest travel conditions, seasonal changes, prices, and local regulations. ✔️ More than 25,000 travelers served, 8,000 tailor-made tours successfully organized, and 1,500 five-star reviews from international travelers. ✔️ Written by a team of travel experts based in Vietnam, with in-depth local knowledge and first-hand expertise across Indochina's top destinations.

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