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Weather Comparison

Hanoi vs Vientiane

Side-by-side weather comparison for July

Hanoi: 32°CVientiane: 30°C477 km apart

July Weather: Hanoi vs Vientiane

MetricHanoiVientianeBetter
Average HighHigher is warmer32°C (90°F)30°C (86°F)Hanoi
Average LowHigher is milder26°C (79°F)24°C (75°F)Hanoi
Rain DaysFewer is drier21 days28 daysHanoi
PrecipitationLess is drier267 mm377 mmHanoi
Sunshine HoursMore is sunnier8h/day7h/dayHanoi
HumidityLower is more comfortable78%78%Tie
UV IndexLower is safer99Tie
Wind SpeedCalmer is better12 km/h10 km/hVientiane

Which City is Better in July?

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Hanoi edges ahead as the better destination in July. Hanoi offers 8 hours of daily sunshine with only 21 rain days, while Vientiane sees 7 sunshine hours and 28 rain days.

Hanoi can feel quite hot at 32°C, so plan for heat. Vientiane runs hot at 30°C.

For travelers who prioritize dry weather, Hanoi is the stronger choice in July. Hanoi receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Temperature Comparison in July

Hanoi reaches an average high of 32°C (90°F) and drops to 26°C (79°F) at night during July. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Vientiane averages 30°C (86°F) for the high and 24°C (75°F) for the low, with a daily range of 6°C. The 2°C difference is noticeable but not dramatic.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in July.

Rainfall Comparison in July

Hanoi receives approximately 267 mm of rainfall across 21 rain days during July. Rain is frequent, so waterproof gear is essential.

Vientiane sees 377 mm over 28 rain days. That makes Hanoi the drier option by 7 rain days and 110 mm of total precipitation.

Both cities share similar humidity levels at 78%.

What to Pack: Hanoi vs Vientiane

Packing for Hanoi in July

Highs of 32°C, lows of 26°C, 21 rain days

  • lightweight breathable clothing
  • sunscreen SPF 50+
  • sunglasses
  • a wide-brimmed hat
  • waterproof jacket
  • compact umbrella
  • waterproof shoes
  • moisture-wicking fabrics

Packing for Vientiane in July

Highs of 30°C, lows of 24°C, 28 rain days

  • lightweight breathable clothing
  • sunscreen SPF 50+
  • sunglasses
  • a wide-brimmed hat
  • waterproof jacket
  • compact umbrella
  • waterproof shoes
  • moisture-wicking fabrics

Pack for both: lightweight breathable clothing, sunscreen SPF 50+, sunglasses, a wide-brimmed hat, waterproof jacket, compact umbrella, waterproof shoes, moisture-wicking fabrics. These items are useful in either destination during July.

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.July 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
32°

Hanoi Weather in July

Full forecast, packing tips, and activities

30°

Vientiane Weather in July

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Hanoi warmer than Vientiane in July?
Yes. In July, Hanoi is warmer with an average high of 32°C (90°F) compared to Vientiane at 30°C (86°F), a difference of 2°C.
Which city gets more rain in July, Hanoi or Vientiane?
Vientiane gets more rain in July with 28 rain days and 377 mm of precipitation. Hanoi is the drier option with 21 rain days.
Is it better to visit Hanoi or Vientiane in July?
It depends on your preferences. Hanoi averages 32°C and 8 hours of daily sunshine with 21 rain days. Vientiane averages 30°C with 7 sunshine hours and 28 rain days. If you prefer warmer weather, choose Hanoi. For drier weather, Hanoi 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