Skip to content

Weather Comparison

Hanoi vs Vientiane

Side-by-side weather comparison for January

Hanoi: 20°CVientiane: 27°C477 km apart

January Weather: Hanoi vs Vientiane

MetricHanoiVientianeBetter
Average HighHigher is warmer20°C (68°F)27°C (81°F)Vientiane
Average LowHigher is milder13°C (55°F)17°C (63°F)Vientiane
Rain DaysFewer is drier8 days2 daysVientiane
PrecipitationLess is drier41 mm10 mmVientiane
Sunshine HoursMore is sunnier4h/day10h/dayVientiane
HumidityLower is more comfortable78%78%Tie
UV IndexLower is safer33Tie
Wind SpeedCalmer is better12 km/h11 km/hVientiane

Which City is Better in January?

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.

Temperature Comparison in January

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.

Rainfall Comparison 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%.

What to Pack: Hanoi vs Vientiane

Packing for Hanoi in January

Highs of 20°C, lows of 13°C, 8 rain days

  • light layers
  • a light jacket for evenings
  • sunscreen
  • a packable rain jacket
  • an umbrella
  • moisture-wicking fabrics

Packing for Vientiane in January

Highs of 27°C, lows of 17°C, 2 rain days

  • light layers
  • a light jacket for evenings
  • sunscreen
  • moisture-wicking fabrics

Pack for both: light layers, a light jacket for evenings, sunscreen, moisture-wicking fabrics. These items are useful in either destination during January.

Year-Round Comparison: Hanoi vs Vientiane

The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.January is highlighted for quick reference.

MonthHanoiVientiane
HighRainHighRain
Jan20°C8d27°C2d
Feb22°C8d30°C2d
Mar25°C11d32°C6d
Apr29°C11d34°C11d
May31°C17d32°C23d
Jun33°C19d30°C26d
Jul32°C21d30°C28d
Aug31°C23d30°C28d
Sep30°C19d30°C24d
Oct28°C12d29°C11d
Nov25°C7d29°C3d
Dec21°C7d27°C1d
20°

Hanoi Weather in January

Full forecast, packing tips, and activities

27°

Vientiane Weather in January

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Hanoi warmer than Vientiane in January?
No. In January, Vientiane is warmer with an average high of 27°C (81°F) compared to Hanoi at 20°C (68°F), a difference of 7°C.
Which city gets more rain in January, Hanoi or Vientiane?
Hanoi gets more rain in January with 8 rain days and 41 mm of precipitation. Vientiane is the drier option with 2 rain days.
Is it better to visit Hanoi or Vientiane in January?
It depends on your preferences. Hanoi averages 20°C and 4 hours of daily sunshine with 8 rain days. Vientiane averages 27°C with 10 sunshine hours and 2 rain days. If you prefer cooler conditions, choose Vientiane. For fewer rain days, Vientiane is the better pick.
How far apart are Hanoi and Vientiane?
Hanoi and Vientiane are approximately 477 km (296 miles) apart. Hanoi is located in Vietnam (Asia) while Vientiane is in Laos (Asia).
What is the best month to visit Hanoi and Vientiane?
For Hanoi, October tends to be the best month with 8 hours of daily sunshine and a high of 28°C. For Vientiane, April is typically ideal with 11 sunshine hours and 34°C highs.

Compare Hanoi and Vientiane in Other Months

Climate data sourced from the Open-Meteo Historical Weather API, using ERA5 reanalysis data covering 30-year normals from 1991 to 2020. All temperatures shown in Celsius with Fahrenheit equivalents. Rain days count days with 1 mm or more of precipitation. Sunshine hours represent average daily values. This comparison is generated from long-term climate averages and individual trips may vary.

Hanoi coordinates: 21.03°N, 105.83°E | Vientiane coordinates: 17.98°N, 102.63°E