Weather in Siem Reap in December
The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.
Climate Overview
December is an excellent time to visit Siem Reap. Siem Reap has a Tropical climate with average yearly highs of 30°C, lows of 22°C, and approximately 3 rainy days per month.
30°C
22°C
3days
11.3h
Is December a good time to visit Siem Reap?
The weather is near-perfect with ideal temperatures and minimal rain.
Daylight
6:20 AM
5:41 PM
Weather by Month
| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 33°C | 23°C | 0 | Excellent (best) |
| February | 34°C | 23°C | 0 | Excellent (best) |
| March | 35°C | 26°C | 8 | Excellent (best) |
| April | 34°C | 26°C | 17 | Wet |
| May | 35°C | 27°C | 19 | Wet |
| June | 32°C | 26°C | 25 | Wet |
| July | 32°C | 25°C | 26 | Wet |
| August | 32°C | 25°C | 26 | Wet |
| September | 31°C | 25°C | 28 | Wet |
| October | 29°C | 23°C | 25 | Wet |
| November | 30°C | 23°C | 6 | Excellent (best) |
| December | 30°C | 22°C | 3 | Excellent (best) |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
What to Pack for December
Humidity-wicking clothes, insect repellent, waterproof bag, and rain poncho.
Planning a trip to Siem Reap?
Common Questions
Is December a good time to visit Siem Reap? +
December is typically Excellent for visiting Siem Reap, with average highs of 30°C and around 3 rainy days.
What should I pack for Siem Reap in December? +
With highs of 30°C and lows of 22°C in {month}, we recommend: Humidity-wicking clothes, insect repellent, waterproof bag, and rain poncho.
Does it rain a lot in Siem Reap in December? +
Siem Reap typically sees around 3 rainy days in December.
How many hours of daylight are there in Siem Reap in December? +
In December, Siem Reap gets approximately 11.3 hours of daylight per day.
Is December peak season in Siem Reap? +
Yes, December is peak season in Siem Reap. Expect higher prices and more crowds, but also the best weather.
What is the best month to visit Siem Reap? +
The best months to visit Siem Reap are November, December, January, February, March, when the weather is optimal for sightseeing.
More Siem Reap Guides
Best Time to Visit
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Things to Do
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Itineraries
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Overview
Complete travel guide for Siem Reap: top things to do, itineraries, and typical costs.