Quick verdict
Peak season: Jan–Feb, Nov–Dec. Shoulder: Mar, Oct. Low: Apr–Sep.
Siem Reap has a tropical monsoon climate nearly identical to Phnom Penh.
What's the weather like in Siem Reap by month?
Each month classified as peak (best balance of weather and value), shoulder (a step in either direction), or low season.
Why visit Siem Reap during Jan–Feb, Nov–Dec?
The most comfortable period for temple exploration. Lower humidity makes full-day excursions feasible.
Shoulder season (Mar, Oct) trades a small weather concession for noticeably smaller crowds and softer prices — often the sweet spot for travelers who want flexibility.
Low season (Apr–Sep) is when prices fall hardest. Expect weather extremes (heat, humidity, cold, or rain depending on the destination) and reduced hours at some seasonal businesses, but the trade-off can be worth it if budget or solitude matters more than perfect conditions.
What festivals and events happen in Siem Reap?
- Angkor Wat International Half MarathonDecember
Runners race through the temple complex at dawn. Registration opens months in advance and fills quickly.
- Khmer New Year (Choul Chnam Thmey)April 13-16
The biggest Cambodian holiday. Temples are packed with local worshippers, water throwing fills the streets, and many restaurants close.
- Angkor Sangkran (New Year at Angkor)April
Special performances, traditional games, and cultural events held within the Angkor Archaeological Park during Khmer New Year week.
What months should I avoid in Siem Reap?
Avoid Jul–Aug if comfort is your priority — this is when weather extremes peak. That said, prices are also at their lowest, and crowds are thin, so the off-peak window suits travelers who put budget or atmosphere ahead of perfect conditions.
Cooler & warmer in Asia this November
If Siem Reap's November weather isn't your match, here are the closest Asia alternatives at different temperatures. Distances are from Siem Reap.
Cooler
See the full ranked list: All Asia destinations in November →
Frequently asked
When is the best time to visit Siem Reap?
The best time to visit Siem Reap is Jan–Feb, Nov–Dec. Siem Reap has a tropical monsoon climate nearly identical to Phnom Penh. These months balance comfortable weather, manageable crowds, and prices that haven't yet hit peak-season highs.
When is the cheapest time to visit Siem Reap?
Low-season months in Siem Reap run Apr–Sep. Flights and hotels typically run 20-40% cheaper than peak. The trade-off is weather (which is why these months are off-peak) and some businesses operating shorter hours, especially in smaller seasonal destinations.
What's the weather like in Siem Reap year-round?
Summer averages around 33°C (91°F) and winter averages around 26°C (79°F) in Siem Reap. Siem Reap has a tropical monsoon climate nearly identical to Phnom Penh. It is hot year-round with a distinct wet season from May to October. The temples can be brutally hot midday — plan early morning and late afternoon visits.
What months should I avoid in Siem Reap?
Jun–Aug brings peak heat (often above 32°C / 90°F) and humidity. If you must travel during these months, plan indoor activities for midday and shift sightseeing to early morning or evening.
What festivals or events are happening in Siem Reap?
Notable events in Siem Reap: Angkor Wat International Half Marathon (December); Khmer New Year (Choul Chnam Thmey) (April 13-16); Angkor Sangkran (New Year at Angkor) (April). Runners race through the temple complex at dawn. Registration opens months in advance and fills quickly.
How many days do I need in Siem Reap?
Most travelers spend 3-5 days in Siem Reap, which covers the main neighborhoods, top attractions, and a half-day day trip. Add a day if you're visiting during peak season when crowds slow you down, or if you're combining Siem Reap with nearby destinations.
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Full guide
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