Weather Comparison
Side-by-side weather comparison for January
| Metric | Hanoi | Vientiane | Better |
|---|---|---|---|
| Average HighHigher is warmer | 20°C (68°F) | 27°C (81°F)▲ | Vientiane |
| Average LowHigher is milder | 13°C (55°F) | 17°C (63°F)▲ | Vientiane |
| Rain DaysFewer is drier | 8 days | 2 days▲ | Vientiane |
| PrecipitationLess is drier | 41 mm | 10 mm▲ | Vientiane |
| Sunshine HoursMore is sunnier | 4h/day | 10h/day▲ | Vientiane |
| HumidityLower is more comfortable | 78% | 78% | Tie |
| UV IndexLower is safer | 3 | 3 | Tie |
| Wind SpeedCalmer is better | 12 km/h | 11 km/h▲ | Vientiane |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Vientiane edges ahead as the better destination in January. Vientiane offers 10 hours of daily sunshine with only 2 rain days, while Hanoi sees 4 sunshine hours and 8 rain days.
Hanoi sits in the comfortable travel range at 20°C. Vientiane is also comfortable at 27°C.
For travelers who prioritize dry weather, Vientiane is the stronger choice in January. Vientiane receives 6 more hours of sunshine per day, which matters for sightseeing and outdoor activities.
Hanoi reaches an average high of 20°C (68°F) and drops to 13°C (55°F) at night during January. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
Vientiane averages 27°C (81°F) for the high and 17°C (63°F) for the low, with a daily range of 10°C. There is a notable 7°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 January.
Hanoi receives approximately 41 mm of rainfall across 8 rain days during January. You can expect rain roughly every other day.
Vientiane sees 10 mm over 2 rain days. That makes Vientiane the drier option by 6 rain days and 31 mm of total precipitation.
Both cities share similar humidity levels at 78%.
Highs of 20°C, lows of 13°C, 8 rain days
Highs of 27°C, lows of 17°C, 2 rain days
Pack for both: light layers, a light jacket for evenings, sunscreen, moisture-wicking fabrics. These items are useful in either destination during January.
The table below shows average high temperatures and rain days for every month. January is highlighted for quick reference.
| Month | Hanoi | Vientiane | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 20°C | 8d | 27°C | 2d |
| Feb | 22°C | 8d | 30°C | 2d |
| Mar | 25°C | 11d | 32°C | 6d |
| Apr | 29°C | 11d | 34°C | 11d |
| May | 31°C | 17d | 32°C | 23d |
| Jun | 33°C | 19d | 30°C | 26d |
| Jul | 32°C | 21d | 30°C | 28d |
| Aug | 31°C | 23d | 30°C | 28d |
| Sep | 30°C | 19d | 30°C | 24d |
| Oct | 28°C | 12d | 29°C | 11d |
| Nov | 25°C | 7d | 29°C | 3d |
| Dec | 21°C | 7d | 27°C | 1d |
Hanoi Weather in January
Full forecast, packing tips, and activities
Vientiane Weather in January
Full forecast, packing tips, and activities