Weather in Vientiane, Laos
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | 16°C | 29°C | 6.4 mm | 24% | 25.4 km/h |
| February | 19°C | 32°C | 30.0 mm | 23% | 26.4 km/h |
| March | 23°C | 35°C | 21.4 mm | 33% | 27.6 km/h |
| April | 25°C | 36°C | 54.1 mm | 47% | 27.0 km/h |
| May | 26°C | 35°C | 164.3 mm | 72% | 26.9 km/h |
| June | 26°C | 33°C | 280.4 mm | 92% | 30.1 km/h |
| July | 26°C | 32°C | 354.9 mm | 88% | 30.6 km/h |
| August | 26°C | 32°C | 339.9 mm | 90% | 28.6 km/h |
| September | 25°C | 32°C | 390.3 mm | 85% | 24.9 km/h |
| October | 24°C | 32°C | 99.7 mm | 58% | 23.2 km/h |
| November | 22°C | 31°C | 18.4 mm | 42% | 23.5 km/h |
| December | 18°C | 30°C | 3.1 mm | 25% | 24.7 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 61.9% | |
| February | 40.8% | |
| March | 14.4% | |
| April | 3.9% | |
| May | 0.4% | |
| June | 0.0% | |
| July | 0.0% | |
| August | 0.0% | |
| September | <0.1% | |
| October | 3.0% | |
| November | 24.0% | |
| December | 59.2% |
About this location and data
- Urban-centre population
- 216,305
- Elevation
- 190 m
- Coordinates
- 17.97°N, 102.62°E
- Urban area
- 84 km²
Weather averages use 2 ERA5 grid cells, weighted by the area of the urban centre in each cell.
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculated