Luang Prabang weather in September
September in Luang Prabang: sweltering, soaked, with clean air — a fair time to visit.
#10 of 12 months in Luang Prabang · #525 of 604 destinations to visit in September · comfort 58/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Luang Prabang climate normals — September
| Daytime high | 30°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 168 mm / 6.6 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 89% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 8.8 h/day | |
| Daylight | 12.2 h | |
| Wind | 6 km/h / 4 mph | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Luang Prabang?
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Luang Prabang in September — FAQ
- Is September a good time to visit Luang Prabang?
- September in Luang Prabang: sweltering, soaked, with clean air — a fair time to visit. It ranks #10 of 12 months for Luang Prabang on SeasonMap's comfort score (58/100).
- What is the weather like in Luang Prabang in September?
- In September, Luang Prabang averages a daily high of 30.3°C and a low of 23.3°C, with about 168.4 mm of rain over roughly 21.4 rainy days.
- What is the air quality in Luang Prabang in September?
- Luang Prabang has a mean US Air Quality Index of about 30 in September.