Weather Comparison
Side-by-side weather comparison for December
| Metric | Nha Trang | Phnom Penh | Better |
|---|---|---|---|
| Average HighHigher is warmer | 26°C (79°F) | 31°C (88°F)▲ | Phnom Penh |
| Average LowHigher is milder | 22°C (72°F) | 23°C (73°F)▲ | Phnom Penh |
| Rain DaysFewer is drier | 17 days | 5 days▲ | Phnom Penh |
| PrecipitationLess is drier | 229 mm | 26 mm▲ | Phnom Penh |
| Sunshine HoursMore is sunnier | 8h/day | 10h/day▲ | Phnom Penh |
| HumidityLower is more comfortable | 82% | 82% | Tie |
| UV IndexLower is safer | 3 | 3 | Tie |
| Wind SpeedCalmer is better | 12 km/h▲ | 15 km/h | Nha Trang |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Phnom Penh edges ahead as the better destination in December. Phnom Penh offers 10 hours of daily sunshine with only 5 rain days, while Nha Trang sees 8 sunshine hours and 17 rain days.
Nha Trang sits in the comfortable travel range at 26°C. Phnom Penh runs hot at 31°C.
For travelers who prioritize dry weather, Phnom Penh is the stronger choice in December. Phnom Penh receives 2 more hours of sunshine per day, which matters for sightseeing and outdoor activities.
Nha Trang reaches an average high of 26°C (79°F) and drops to 22°C (72°F) at night during December. The daily temperature range is 4°C, meaning relatively stable temperatures from day to night.
Phnom Penh averages 31°C (88°F) for the high and 23°C (73°F) for the low, with a daily range of 8°C. There is a notable 5°C gap between the two cities, so expect a very different feel.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in December.
Nha Trang receives approximately 229 mm of rainfall across 17 rain days during December. Rain is frequent, so waterproof gear is essential.
Phnom Penh sees 26 mm over 5 rain days. That makes Phnom Penh the drier option by 12 rain days and 203 mm of total precipitation.
Both cities share similar humidity levels at 82%.
Highs of 26°C, lows of 22°C, 17 rain days
Highs of 31°C, lows of 23°C, 5 rain days
Pack for both: 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 | Nha Trang | Phnom Penh | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 26°C | 10d | 32°C | 3d |
| Feb | 27°C | 6d | 33°C | 2d |
| Mar | 29°C | 9d | 35°C | 6d |
| Apr | 31°C | 12d | 35°C | 14d |
| May | 32°C | 23d | 34°C | 23d |
| Jun | 32°C | 24d | 32°C | 24d |
| Jul | 32°C | 24d | 32°C | 25d |
| Aug | 32°C | 24d | 32°C | 25d |
| Sep | 30°C | 26d | 31°C | 27d |
| Oct | 28°C | 26d | 30°C | 25d |
| Nov | 27°C | 21d | 30°C | 11d |
| Dec | 26°C | 17d | 31°C | 5d |
Nha Trang Weather in December
Full forecast, packing tips, and activities
Phnom Penh Weather in December
Full forecast, packing tips, and activities