Siem Reap vs Bangkok

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Siem Reap edges ahead as the better destination in December. Siem Reap offers 10 hours of daily sunshine with only 3 rain days, while Bangkok sees 1 sunshine hours and 6 rain days.

Siem Reap can feel quite hot at 30°C, so plan for heat. Bangkok is also comfortable at 28°C.

For travelers who prioritize dry weather, Siem Reap is the stronger choice in December. Siem Reap receives 9 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

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 28°C (82°F) for the high and 21°C (70°F) for the low, with a daily range of 7°C. The 2°C difference is noticeable but not dramatic.

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 70 mm over 6 rain days. That makes Siem Reap the drier option by 3 rain days and 55 mm of total precipitation.

Both cities share similar humidity levels at 82%.