✨December is an excellent time to visit Siem Reap — expect warm days around 86°F (lows near 71°F), minimal rain, plenty of sunshine.
December Climate
Why This Matches
Based on your December search preferences
Avg highs of 86°F
4 rain days expected
9.5 hours of sunshine per day
69% average humidity
Year-Round Climate
Temperature
Sunshine
Rainfall
Best Time to Visit Siem Reap
The best time to visit Siem Reap is January–February and December, with highs around 88°F, minimal rainfall, 10+ hours of daily sunshine.
Weather Risks
Rainy season
May, June, July, August, September, October
Monsoon season
Varies by area — typically May–October
Very high humidity
September
What to Pack
Based on December conditions in Siem Reap
Light, breathable fabrics — linen and cotton are ideal
High SPF sunscreen, sunglasses, and a hat — strong sun expected
Comfortable walking shoes — you'll cover a lot of ground
Insect repellent — mosquitoes are active in humid conditions
December in Siem Reap
Flight prices unavailable for this route
Nightly hotel rates
Budget
$10–$23
Mid-Range
$33–$78
Luxury
$104–$260
About Siem Reap
Siem Reap is the lively Cambodian town that serves as the gateway to Angkor, the vast temple complex of the ancient Khmer Empire. The crowning glory is Angkor Wat, the largest religious monument in the world, breathtaking at sunrise, but the wider site holds dozens more, from the serene stone faces of Angkor Thom to the jungle-swallowed ruins of Ta Prohm, where giant tree roots grip the temple walls.
The town itself has grown into a welcoming base with plenty to enjoy after a day among the ruins. Buzzing night markets and the restaurants and bars of Pub Street cater to travelers, while the floating villages and stilt houses of the great Tonlé Sap lake offer a glimpse of a very different way of life nearby.
The dry season from November to April is the most comfortable time to explore the temples, with cooler, clearer conditions early on. The wet season brings heat, humidity, and afternoon downpours, but also lush greenery and reflecting pools around the ruins.
