Vientiane weather by month
The best time to visit Vientiane, Laos is December. Pick a month for full climate normals and a verdict.
- Januaryhot, dry91tier S
- Februaryhot, a little rain84tier A
- Marchsweltering, a little rain74tier B
- Aprilsweltering, a little rain, poor air quality66tier C
- Maysweltering, soaked60tier C
- Junesweltering, soaked, clean air54tier D
- Julysweltering, soaked, clean air52tier D
- Augustsweltering, soaked, clean air46tier F
- Septembersweltering, soaked, clean air49tier F
- Octobersweltering, rainy, clean air68tier C
- Novemberhot, dry80tier A
- Decemberhot, dry92tier S