Phnom Penh in September (2026)
Verdict: Go with caveats
September is an okay time to visit Phnom Penh, with some trade-offs. Warm, wettest month, temperatures around 30°C/24°C. The upside: low prices and low crowds.
Weather
30°C/24°C · Warm, wettest month
Crowds
Low
Daily budget
₹3,000–₹9,500/day
Temperature
30°C/24°C
Weather
Warm, wettest month
Crowds
Low
Prices
Low
September vs the best time to visit Phnom Penh
The best months to visit Phnom Penh are November, December, January, February. September sits outside peak season, which often means better value and thinner crowds.
See the full month-by-month guide →Things to do in Phnom Penh in September
Royal Palace
The residence of Cambodia's king, with gleaming pavilions and a throne hall open to visitors on certain days.
Silver Pagoda
A temple within the Royal Palace grounds, named for its floor of over 5,000 silver tiles, housing a jade Buddha.
Tuol Sleng Genocide Museum
A former Khmer Rouge prison, now a sobering museum documenting one of the 20th century's worst atrocities.
Choeung Ek Killing Fields
A memorial site outside the city with a Buddhist stupa honouring victims of the Khmer Rouge regime.
Central Market
An art deco domed market selling gold, clothes, and street food, one of the city's architectural landmarks.
Mekong Sunset Cruise
A boat trip along the Tonle Sap and Mekong river confluence, timed for sunset views over the water.
Phnom Penh in September — FAQs
Is September a good time to visit Phnom Penh?
September is an okay time to visit Phnom Penh, with some trade-offs. Warm, wettest month, temperatures around 30°C/24°C. The upside: low prices and low crowds.
Is Phnom Penh expensive in September?
September is a low-price month in Phnom Penh, with low crowds and daily costs around ₹3,000–₹9,500/day per person. The best-value strategy: take advantage of off-peak rates on stays and activities.
What should I pack for Phnom Penh in September?
Pack for temperatures around 30°C/24°C. Light layers work well, with something warmer for evenings. Heaviest rainfall of the year
Full Travel Guide
Planning a Phnom Penh trip in September?
Things to do, where to stay, budgets and local tips — all free.