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Weather Comparison

Chiang Mai vs Vientiane

Side-by-side weather comparison for August

Chiang Mai: 29°CVientiane: 30°C395 km apart

August Weather: Chiang Mai vs Vientiane

MetricChiang MaiVientianeBetter
Average HighHigher is warmer29°C (84°F)30°C (86°F)Vientiane
Average LowHigher is milder23°C (73°F)24°C (75°F)Vientiane
Rain DaysFewer is drier25 days28 daysChiang Mai
PrecipitationLess is drier258 mm415 mmChiang Mai
Sunshine HoursMore is sunnier7h/day7h/dayTie
HumidityLower is more comfortable78%78%Tie
UV IndexLower is safer99Tie
Wind SpeedCalmer is better8 km/h10 km/hChiang Mai

Which City is Better in August?

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Chiang Mai edges ahead as the better destination in August. Chiang Mai offers 7 hours of daily sunshine with only 25 rain days, while Vientiane sees 7 sunshine hours and 28 rain days.

Chiang Mai can feel quite hot at 29°C, so plan for heat. Vientiane runs hot at 30°C.

For travelers who prioritize dry weather, Chiang Mai is the stronger choice in August.

Temperature Comparison in August

Chiang Mai reaches an average high of 29°C (84°F) and drops to 23°C (73°F) at night during August. 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 two cities feel quite similar in terms of temperature.

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

Rainfall Comparison in August

Chiang Mai receives approximately 258 mm of rainfall across 25 rain days during August. Rain is frequent, so waterproof gear is essential.

Vientiane sees 415 mm over 28 rain days. That makes Chiang Mai the drier option by 3 rain days and 157 mm of total precipitation.

Both cities share similar humidity levels at 78%.

What to Pack: Chiang Mai vs Vientiane

Packing for Chiang Mai in August

Highs of 29°C, lows of 23°C, 25 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 August

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 August.

Year-Round Comparison: Chiang Mai 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.August is highlighted for quick reference.

MonthChiang MaiVientiane
HighRainHighRain
Jan28°C1d27°C2d
Feb31°C1d30°C2d
Mar34°C2d32°C6d
Apr36°C5d34°C11d
May33°C14d32°C23d
Jun31°C20d30°C26d
Jul30°C23d30°C28d
Aug29°C25d30°C28d
Sep29°C24d30°C24d
Oct29°C16d29°C11d
Nov28°C4d29°C3d
Dec27°C2d27°C1d
29°

Chiang Mai Weather in August

Full forecast, packing tips, and activities

30°

Vientiane Weather in August

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Chiang Mai warmer than Vientiane in August?
No. In August, Vientiane is warmer with an average high of 30°C (86°F) compared to Chiang Mai at 29°C (84°F), a difference of 1°C.
Which city gets more rain in August, Chiang Mai or Vientiane?
Vientiane gets more rain in August with 28 rain days and 415 mm of precipitation. Chiang Mai is the drier option with 25 rain days.
Is it better to visit Chiang Mai or Vientiane in August?
It depends on your preferences. Chiang Mai averages 29°C and 7 hours of daily sunshine with 25 rain days. Vientiane averages 30°C with 7 sunshine hours and 28 rain days. If you prefer cooler conditions, choose Vientiane. For drier weather, Chiang Mai is the better pick.
How far apart are Chiang Mai and Vientiane?
Chiang Mai and Vientiane are approximately 395 km (245 miles) apart. Chiang Mai is located in Thailand (Asia) while Vientiane is in Laos (Asia).
What is the best month to visit Chiang Mai and Vientiane?
For Chiang Mai, February tends to be the best month with 11 hours of daily sunshine and a high of 31°C. For Vientiane, April is typically ideal with 11 sunshine hours and 34°C highs.

Compare Chiang Mai 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.

Chiang Mai coordinates: 18.79°N, 98.99°E | Vientiane coordinates: 17.98°N, 102.63°E