Weather Comparison
Side-by-side weather comparison for December
| Metric | Siem Reap | Ho Chi Minh City | Better |
|---|---|---|---|
| Average HighHigher is warmer | 30°C (86°F) | 30°C (86°F) | Tie |
| Average LowHigher is milder | 21°C (70°F) | 22°C (72°F)▲ | Ho Chi Minh City |
| Rain DaysFewer is drier | 3 days▲ | 9 days | Siem Reap |
| PrecipitationLess is drier | 15 mm▲ | 62 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 | 13 km/h | 11 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.
Siem Reap can feel quite hot at 30°C, so plan for heat. Ho Chi Minh City runs hot at 30°C.
For travelers who prioritize dry weather, Siem Reap 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.
Ho Chi Minh City averages 30°C (86°F) for the high and 22°C (72°F) for the low, with a daily range of 8°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.
Ho Chi Minh City sees 62 mm over 9 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 21°C, 3 rain days
Highs of 30°C, lows of 22°C, 9 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 | Siem Reap | Ho Chi Minh City | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 31°C | 2d | 31°C | 4d |
| Feb | 33°C | 3d | 33°C | 2d |
| Mar | 34°C | 9d | 34°C | 5d |
| Apr | 34°C | 15d | 34°C | 12d |
| May | 33°C | 22d | 33°C | 25d |
| Jun | 32°C | 21d | 31°C | 27d |
| Jul | 32°C | 22d | 31°C | 29d |
| Aug | 31°C | 25d | 31°C | 29d |
| Sep | 30°C | 26d | 30°C | 29d |
| Oct | 30°C | 23d | 30°C | 27d |
| Nov | 30°C | 9d | 30°C | 17d |
| Dec | 30°C | 3d | 30°C | 9d |
Siem Reap Weather in December
Full forecast, packing tips, and activities
Ho Chi Minh City Weather in December
Full forecast, packing tips, and activities