Cambodia
Siem Reap in December: weather & travel advice
This month's data profile
Strong month under the current formula
Siem Reap in December is climatically well suited to family holidays and city breaks. The average daily high is around 32 °C. With about 2 rainy days it is very dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
69/100 · #1
Warmth
#6
Dryness
#1
Sun
#11
Published best categories: Overall, City break, Active, Family
Siem Reap · DecemberPhoto: Bahnfrend · CC BY-SA 4.0Climate facts
- Average high
- 32 °C
- Average low
- 20 °C
- Rainy days (est.)
- 2 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 67 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| November | 31 | 22 | 7 | 35 | 6.1 | 79 | 1.6 | 66 |
| December (selected) | 32 | 20 | 2 | 6 | 6.0 | 67 | 1.7 | 69 |
| January | 34 | 21 | 3 | 10 | 6.4 | 57 | 1.5 | 65 |
How do the previous and next months compare?
Baseline: December (69/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| November | -3 | -0.9 °C | +1.6 °C | +5.5 | +29.3 mm | +0.1 h | +11.9 % | -0.2 m/s |
| January | -4 | +1.6 °C | +0.4 °C | +0.8 | +4.4 mm | +0.4 h | -9.3 % | -0.2 m/s |
All twelve months in context
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Where to stay in Siem Reap
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Useful next decisions
Frequently asked questions
How warm is Siem Reap in December?
The average daily high is around 32 °C, with an average daily low of about 20 °C.
Does it rain a lot in Siem Reap in December?
The curated estimate is about 2 rainy days per month, not a directly measured long-term average. Total precipitation averages around 6 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Siem Reap?
By the climate score, January, February, November and December are the strongest months for Siem Reap. December is one of them.