Weather Comparison
Side-by-side weather comparison for December
| Metric | Ho Chi Minh City | Siem Reap | Better |
|---|---|---|---|
| Average HighHigher is warmer | 30°C (86°F) | 30°C (86°F) | Tie |
| Average LowHigher is milder | 22°C (72°F)▲ | 21°C (70°F) | Ho Chi Minh City |
| Rain DaysFewer is drier | 9 days | 3 days▲ | Siem Reap |
| PrecipitationLess is drier | 62 mm | 15 mm▲ | Siem Reap |
| Sunshine HoursMore is sunnier | 10h/day | 10h/day | Tie |
| HumidityLower is more comfortable | 82% | 82% | Tie |
| UV IndexLower is safer | 3 | 3 | Tie |
| Wind SpeedCalmer is better | 11 km/h▲ | 13 km/h | Ho Chi Minh City |
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 Ho Chi Minh City sees 10 sunshine hours and 9 rain days.
Ho Chi Minh City can feel quite hot at 30°C, so plan for heat. Siem Reap runs hot at 30°C.
For travelers who prioritize dry weather, Siem Reap is the stronger choice in December.
Ho Chi Minh City reaches an average high of 30°C (86°F) and drops to 22°C (72°F) at night during December. The daily temperature range is 8°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.
Ho Chi Minh City receives approximately 62 mm of rainfall across 9 rain days during December. You can expect rain roughly every other day.
Siem Reap sees 15 mm over 3 rain days. That makes Siem Reap the drier option by 6 rain days and 47 mm of total precipitation.
Both cities share similar humidity levels at 82%.
Highs of 30°C, lows of 22°C, 9 rain days
Highs of 30°C, lows of 21°C, 3 rain days
Pack for both: lightweight breathable clothing, sunscreen SPF 50+, sunglasses, a wide-brimmed hat, moisture-wicking fabrics. These items are useful in either destination during December.
The table below shows average high temperatures and rain days for every month. December is highlighted for quick reference.
| Month | Ho Chi Minh City | Siem Reap | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 31°C | 4d | 31°C | 2d |
| Feb | 33°C | 2d | 33°C | 3d |
| Mar | 34°C | 5d | 34°C | 9d |
| Apr | 34°C | 12d | 34°C | 15d |
| May | 33°C | 25d | 33°C | 22d |
| Jun | 31°C | 27d | 32°C | 21d |
| Jul | 31°C | 29d | 32°C | 22d |
| Aug | 31°C | 29d | 31°C | 25d |
| Sep | 30°C | 29d | 30°C | 26d |
| Oct | 30°C | 27d | 30°C | 23d |
| Nov | 30°C | 17d | 30°C | 9d |
| Dec | 30°C | 9d | 30°C | 3d |
Ho Chi Minh City Weather in December
Full forecast, packing tips, and activities
Siem Reap Weather in December
Full forecast, packing tips, and activities