Siem Reap Weather in December
Cambodia · 30-year monthly averages
🌟 Great time to visit
December in Siem Reap is warm, with average daytime highs around 29°C (85°F) and nighttime lows near 21°C (70°F). Expect roughly 8mm of precipitation, and rain is rare.
Avg high
29°C
85°F
Avg low
21°C
70°F
Rainfall
8mm
very dry
Mean temp
25°C
78°F
🎒 What to pack
- light summer clothing
- sunscreen and sunglasses
December vs the rest of the year
FAQ
- How hot is Siem Reap in December?
- December in Siem Reap is warm, with average daytime highs around 29°C (85°F) and nighttime lows near 21°C (70°F). Expect roughly 8mm of precipitation, and rain is rare.
- Does it rain a lot in Siem Reap in December?
- Siem Reap sees around 8mm of precipitation in December on average — very dry by global standards.
- Is December a good time to visit Siem Reap?
- December is one of the best months to visit Siem Reap — comfortable temperatures and manageable rainfall.