Less good
Cambodia in September: Weather, Crowds & What's On
What September is actually like in Cambodia — average highs and lows, how much rain to expect, public holidays that fill trains and hotels, and verified places to go.
- Average high
- 31°C
- Average low
- 25°C
- Rainfall
- 229mm
Where this month sits in the year
The 11th warmest month of Cambodia's year. The wettest month — 20% of the year's rain falls now.
Public holidays in September
Domestic travel peaks around these dates — book earlier and expect busier sights.
- September 24, 2027 ទិវាប្រកាសរដ្ឋធម្មនុញ្ញ · Constitution Day
- September 29, 2027 ពិធីបុណ្យភ្ផុំបិណ្ឌ · Pchum Ben Day
Planning a trip this month?
Email me this guide
Save this timing guide
Get a link to this page in your inbox, plus a short weekly brief on which destinations are entering their best window. One email a week, unsubscribe anytime.
Climate figures are 10-year averages for Siem Reap, from NASA POWER; holidays from public calendars. Updated monthly.