Average annual temperature is 18.8 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: 1.3 °C
Number of sunny days: 101 days
Number of rainy days: 264 days
Look at detailed online map of Viengthong
* Weather data for Viengthong Laos is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 22.8 | 27.7 | 29.4 | 31.5 | 30.8 | 30.7 | 29.2 | 27.8 | 26.8 | 26.9 | 25.8 | 24.7 |
| Average daytime temperature (°C) | 19.1 | 23.3 | 24.7 | 28.6 | 27.8 | 26.0 | 26.9 | 24.5 | 24.5 | 23.9 | 22.6 | 21.0 |
| Average temperature (°C) | 12.4 | 16.2 | 18.2 | 22.3 | 22.3 | 21.4 | 22.0 | 20.6 | 20.3 | 18.8 | 16.7 | 14.8 |
| Average night temperature (°C) | 6.6 | 10.7 | 13.4 | 17.7 | 18.5 | 18.5 | 18.4 | 18.1 | 17.4 | 14.9 | 12.3 | 10.1 |
| Absolute minimum temperature (°C) | 1.3 | 4.8 | 8.8 | 14.8 | 15.3 | 17.6 | 17.2 | 16.1 | 16.0 | 11.1 | 7.0 | 1.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.3 | 10.0 | 9.9 | 11.0 | 10.9 | 8.5 | 10.1 | 6.4 | 8.4 | 9.3 | 9.1 | 9.3 |
| Precipitation (mm) | 8 | 29 | 53 | 40 | 109 | 297 | 185 | 328 | 218 | 86 | 31 | 19 |
| Sunny days | 21 | 15 | 9 | 10 | 2 | 1 | 0 | 2 | 1 | 8 | 15 | 17 |
| Rainy days | 10 | 13 | 22 | 20 | 29 | 29 | 31 | 29 | 29 | 23 | 15 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Viengthong is at