What to Wear in Siem Reap in December
Warm days, cool mornings — peak season. Expect 20°–31°C with 2 rainy days on average.
☀️
High
31°C
🌙
Low
20°C
🌧️
Rain days
2
🌡️
Feel
Very Warm
Typical outfit
~26°C average
About December in Siem Reap
December in Siem Reap typically brings warm days, cool mornings — peak season. With averages of 20°–31°C, the conditions call for a beautifully warm day — dress for comfort and style with breathable summer pieces.
Bring a light layer for the evening — temperatures can drop 8–10°C after sunset.
December in other cities