Vientiane, Vientiane Prefecture, Laos climate
Average temperatures, precipitation and all-time records for Vientiane, Vientiane Prefecture, Laos, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is April, averaging a high of 36°C, and its coldest is January, with an average low of 17°C.
Vientiane is the capital city of Laos. Comprising the 5 urban districts of Vientiane Prefecture, the city is located on the banks of the Mekong, close to the border with Thailand. Vientiane was the administrative capital during French rule. via Wikipedia
How today compares
Latest recorded day: 2026-07-24. Each reading placed on Vientiane, Vientiane Prefecture, Laos's own ±7-day seasonal distribution.
Vientiane average temperatures by month
Typical daily high and low, and average precipitation, for each month in Vientiane, Vientiane Prefecture, Laos, based on 1980–2026 records. The wettest month is July (13 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 29°C | 17°C | 0 mm |
| February | 32°C | 19°C | 0 mm |
| March | 34°C | 22°C | 0 mm |
| April | 36°C | 25°C | 3 mm |
| May | 33°C | 25°C | 8 mm |
| June | 32°C | 26°C | 10 mm |
| July | 32°C | 25°C | 13 mm |
| August | 32°C | 25°C | 13 mm |
| September | 31°C | 25°C | 10 mm |
| October | 31°C | 24°C | 5 mm |
| November | 30°C | 21°C | 0 mm |
| December | 28°C | 17°C | 0 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 43°C on 2024-04-27
- Coldest day on record: 6°C on 1999-12-25
Percentiles compare each day to Vientiane, Vientiane Prefecture, Laos's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →