Best Time to Visit Siem Reap
Cambodia · 30-year monthly climate averages
☀️ When to go
Based on 30 years of climate data, the most comfortable months to visit Siem Reap are January, February and December, when daytime temperatures are agreeable and rainfall is relatively low.
Climate profile
Siem Reap sees its warmest weather in April, when daytime highs average around 34°C, and its coolest in December (around 29°C).
Annual precipitation totals roughly 1441mm — September is typically the wettest month (~301mm) and January the driest (~5mm).
A distinctly wetter period runs from May to October — worth planning around if you prefer dry days.
Year at a glance
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
🔥 Recent heat vs normal
Daily forecast highs vs the 30-year normal — last 36 days
Each bar is one day: orange above normal, blue below.
Month by month
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 30° / 22°C | 5mm | 👍 Good |
| February | 32° / 24°C | 7mm | 👍 Good |
| March | 33° / 25°C | 30mm | 👍 Good |
| April | 34° / 26°C | 63mm | 🤔 Fair |
| May | 33° / 26°C | 157mm | ⚠️ Challenging |
| June | 32° / 26°C | 208mm | ⚠️ Challenging |
| July | 32° / 25°C | 191mm | ⚠️ Challenging |
| August | 31° / 25°C | 198mm | ⚠️ Challenging |
| September | 30° / 25°C | 301mm | ⚠️ Challenging |
| October | 30° / 24°C | 209mm | 🤔 Fair |
| November | 30° / 23°C | 65mm | 👍 Good |
| December | 29° / 21°C | 8mm | 🌟 Great |
FAQ
- What is the best time to visit Siem Reap?
- Based on 30 years of climate data, the most comfortable months to visit Siem Reap are January, February and December, when daytime temperatures are agreeable and rainfall is relatively low.
- What is the hottest month in Siem Reap?
- April is typically the hottest month in Siem Reap, with average daytime highs around 34°C.
- What is the rainiest month in Siem Reap?
- September is usually the wettest month, with around 301mm of precipitation.