Bangkok vs Siem Reap

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Bangkok edges ahead as the better destination in December. Bangkok offers 10 hours of daily sunshine with only 2 rain days, while Siem Reap sees 10 sunshine hours and 3 rain days.

Bangkok can feel quite hot at 31°C, so plan for heat. Siem Reap runs hot at 30°C.

For travelers who prioritize dry weather, Bangkok is the stronger choice in December.

Bangkok reaches an average high of 31°C (88°F) and drops to 21°C (70°F) at night during December. The daily temperature range is 10°C, meaning moderate variation throughout the day.

Siem Reap averages 30°C (86°F) for the high and 21°C (70°F) for the low, with a daily range of 9°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in December.

Bangkok receives approximately 9 mm of rainfall across 2 rain days during December. Rain is rare this month, so dry conditions are likely.

Siem Reap sees 15 mm over 3 rain days. That makes Bangkok the drier option by 1 rain day and 6 mm of total precipitation.

Both cities share similar humidity levels at 82%.