Vientiane, LaosQuick decision
When to visit Vientiane?
🌞 Best time overall
January
🌡️ Optimal temperature
18°C–28°C in January
🌧 Least rain
7% rainy days in January
🌧 Wettest month
June (87%)
📅 Best score
9.1/10
Monthly climate data
Vientiane weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ☀️ January | 18°C | 28°C | 7% | 0.5 | 10.8h | 9.1/10 |
| ☀️ February | 19°C | 30°C | 7% | 0.6 | 11.0h | 8.6/10 |
| ☀️ March | 23°C | 32°C | 22% | 1.4 | 11.0h | 7.7/10 |
| 🌤️ April | 25°C | 34°C | 28% | 2.1 | 11.4h | 7.2/10 |
| ⛅ May | 25°C | 32°C | 72% | 7.2 | 10.5h | 7.0/10 |
| 🌦️ June | 25°C | 31°C | 87% | 9.9 | 9.1h | 6.1/10 |
| 🌧️ July | 25°C | 31°C | 84% | 12.0 | 8.5h | 6.2/10 |
| 🌧️ August | 24°C | 30°C | 85% | 13.9 | 7.7h | 6.4/10 |
| 🌧️ September | 24°C | 30°C | 89% | 12.5 | 9.9h | 6.9/10 |
| 🌤️ October | 23°C | 30°C | 47% | 4.7 | 10.9h | 7.5/10 |
| ☀️ November | 21°C | 30°C | 12% | 1.1 | 10.5h | 8.3/10 |
| ☀️ December | 18°C | 28°C | 4% | 0.2 | 10.3h | 9.1/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
🌴 Tropical destination — heavy rain months benefit from an algorithmic adjustment: tropical showers are intense but brief and usually don't ruin a trip.
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 33°C, 41% rainy days, 11.0h sunshine/day. Score: 7.3/10.
☀️ Summer (Jun–Aug) — Acceptable
Average 31°C, 85% rainy days, 8.4h sunshine/day. Score: 6.2/10.
🍂 Autumn (Sep–Nov) — Good time
Average 30°C, 49% rainy days, 10.4h sunshine/day. Score: 7.6/10.
❄️ Winter (Dec–Feb) — Excellent time
Average 29°C, 6% rainy days, 10.7h sunshine/day. Score: 8.9/10.
Accommodation
Find a place to stay in Vientiane
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Tip : April, May offer a good weather/price balance — decent score with fewer crowds.
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Activities and tours in Vientiane
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
January is ideal with 7% rainy days and 28°C. The months of January & December offer comparable conditions.
June is the wettest month with 87% rainy days.
Yes, January is the best month with an average of 28°C.
In winter, the average score is 8.9/10. Acceptable conditions for cultural visits.
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