Vientiane Weather in August
Laos · 30-year monthly averages
⚠️ Challenging time to visit
August in Vientiane is hot, with average daytime highs around 31°C (89°F) and nighttime lows near 25°C (77°F). Expect roughly 341mm of precipitation spread over about 21 rainy days, and heavy rainfall is common — this is peak wet season territory.
Avg high
31°C
89°F
Avg low
25°C
77°F
Rainfall
341mm
very wet
Rainy days
21
days with ≥1mm
☀️ About 124 hours of sunshine over the month (~4h/day).
🎒 What to pack
- breathable summer clothing
- sunscreen, hat and sunglasses
- refillable water bottle
- compact umbrella or rain jacket
August vs the rest of the year
FAQ
- How hot is Vientiane in August?
- August in Vientiane is hot, with average daytime highs around 31°C (89°F) and nighttime lows near 25°C (77°F). Expect roughly 341mm of precipitation spread over about 21 rainy days, and heavy rainfall is common — this is peak wet season territory.
- Does it rain a lot in Vientiane in August?
- Vientiane sees around 341mm of precipitation in August on average — very wet by global standards.
- Is August a good time to visit Vientiane?
- August is a challenging month to visit Vientiane weather-wise — plan around the conditions.