Best Time to Visit Siem Reap
Siem Reap is best visited All year, when skies are clearer and temperatures are warm without being extreme.
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Once you know the best time to go, find out exactly what to pack for Siem Reap at 247PackingList — climate-matched checklists for every destination. For country facts like currency, language and plug type, see our Cambodia country guide at 247CountryInfo. Some travellers fund a longer stay in Siem Reap by teaching English along the way — a TEFL certificate is usually all it takes.
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Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youSiem Reap — Monthly Temperatures
Average daily high and low temperatures (°C/°F). Bars show the daily range each month.
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| Month | High | Low | Rain | Sun/day | Rainy days | Rating |
|---|---|---|---|---|---|---|
| January Best | 31.0°C | 21.0°C | 31.1mm | 10.3h | 2 | 10/10 |
| February Best | 32.7°C | 22.2°C | 36.1mm | 10.6h | 4 | 10/10 |
| March Best | 34.6°C | 24.7°C | 47.5mm | 11.1h | 8 | 10/10 |
| April Best | 33.6°C | 25.1°C | 156.1mm | 10.2h | 18 | 9/10 |
| May Best | 33.1°C | 25.7°C | 227.2mm | 9.9h | 22 | 8/10 |
| June Best | 32.9°C | 25.5°C | 162.3mm | 9.6h | 22 | 9/10 |
| July Best | 31.7°C | 25.2°C | 268.7mm | 8.7h | 26 | 8/10 |
| August Best | 31.7°C | 25.1°C | 237.6mm | 8.1h | 26 | 8/10 |
| September Best | 30.3°C | 24.3°C | 396.0mm | 6.8h | 29 | 8/10 |
| October Best | 30.0°C | 23.4°C | 309.8mm | 7.6h | 24 | 8/10 |
| November Best | 30.2°C | 22.8°C | 132.1mm | 9.4h | 14 | 9/10 |
| December Best | 29.8°C | 21.1°C | 28.9mm | 10.1h | 4 | 10/10 |
Siem Reap Climate
Siem Reap has a tropical climate — hot and humid year-round with a distinct wet season. Check the annual climate overview for Siem Reap for the full year picture, or read the dedicated Siem Reap rainy season guide.
Counting down to your trip? Use our holiday countdown timer at LeftToTime to track the days. Owners often keep a Siem Reap travel guide to hand for planning on the go. Check clothing sizes in Cambodia at 247Sizing before you shop.
Frequently Asked Questions
What is the best month to visit Siem Reap?
The best month to visit Siem Reap is January, when temperatures average 31.0°C and conditions score 10/10 for comfort.
What is the weather like in Siem Reap in January?
Siem Reap in January is hot — daytime temperatures average 31.0°C, dropping to 21.0°C at night. The month is mostly dry with only occasional showers, with roughly 10.3 hours of sunshine a day. This is peak season for good reason — conditions are close to ideal.
When is rainy season in Siem Reap?
Rainy season in Siem Reap runs April, May, June, July, August, September, October, November. Expect heavy downpours and high humidity. Full rainy season guide →
Is Siem Reap good to visit in winter?
Yes — winter (December, January, February) averages 31.0°C highs with a 10/10 comfort rating, making it a solid time to visit.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.