Siem Reap vs Bangkok

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.

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

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

Siem Reap reaches an average high of 30°C (86°F) and drops to 21°C (70°F) at night during December. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Bangkok averages 31°C (88°F) for the high and 21°C (70°F) for the low, with a daily range of 10°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.

Siem Reap receives approximately 15 mm of rainfall across 3 rain days during December. Rain is occasional, so a light rain jacket should suffice.

Bangkok sees 9 mm over 2 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%.