AU
Level 2Exercise increased caution
Exercise increased caution
Cambodia · Siem Reap · September
Siem Reap in Septemberhow the month reads
September is a challenging month for Siem Reap overall inside Cambodia, with cooler than the yearly mean by 1.4°C. The safety bulletins below apply.
- Rank
- 12 of 12
- Score
- 25/100
September match
25/100
Free-tier default preferences.
What’s open · September
Things to do in Siem Reap in September
- LimitedAngkor
the wet months, hot and humid with afternoon downpours
Sources: asiaodysseytravel.com, indochinatour.com
Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.
- Temperature31°C−1.4°C vs. yearly mean
- Month rank12 of 12for Siem Reap
- Best monthsJanuary · November · Decemberhighest regional score
12-month temperature · Siem Reap
September in context
View data table
| Month | Average daytime high (°C) |
|---|---|
| January | 31.7 |
| February | 33.4 |
| March | 35.0 |
| April | 35.7 |
| May | 34.4 |
| June | 33.5 |
| July | 32.3 |
| August | 32.5 |
| September | 31.4 |
| October | 31.4 |
| November | 31.3 |
| December | 30.7 |
Safety · 4 governments
What the governments say about Cambodia
Combined advisory · most-cautious-wins
Exercise increased caution
Highest level across 4 governments · Advisory last changed
See breakdown by countryHide breakdown
DE
Level 1Exercise normal precautions
Exercise normal precautions
NL
Level 2Exercise increased caution
Exercise increased caution
US
Level 2Exercise increased caution
Exercise increased caution
Parts of Cambodia carry a higher advisory — up to level 4, "Do not travel". The governments concerned name a region rather than a boundary, so the carve-out is not drawn on the map and is not reflected in the combined level above. Follow the source links for where it applies.
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Plan a September trip to Siem Reap.
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