Luang Prabang weather by month
Luang Prabang runs from about 22°C in January to 30°C in April, with August the wettest month at 378 mm.
warmest month
April
30°C
coolest month
January
22°C
wettest month
August
378 mm
worst air month
April
73 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 22°C | 40 mm | 307 h | 13 |
| February | 25°C | 2 mm | 304 h | 20 |
| March | 27°C | 33 mm | 301 h | 36 |
| April | 30°C | 5 mm | 313 h | 73 |
| May | 28°C | 251 mm | 316 h | 11 |
| June | 28°C | 284 mm | 272 h | 7 |
| July | 27°C | 278 mm | 257 h | 8 |
| August | 27°C | 378 mm | 251 h | 9 |
| September | 26°C | 338 mm | 251 h | 7 |
| October | 26°C | 44 mm | 328 h | 10 |
| November | 24°C | 4 mm | 308 h | 8 |
| December | 22°C | 17 mm | 297 h | 12 |
About 3,505 hours of sun a year. Roughly 155 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.