Average annual temperature is 23.8 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: 6.4 °C
Number of sunny days: 100 days
Number of rainy days: 265 days
Look at detailed online map of Ban Co Sum
* Weather data for Ban Co Sum 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) | 30.7 | 35.3 | 36.9 | 38.1 | 39.3 | 38.3 | 36.9 | 33.9 | 32.2 | 32.2 | 30.7 | 31.2 |
| Average daytime temperature (°C) | 22.0 | 26.5 | 28.9 | 33.0 | 33.5 | 32.3 | 33.6 | 30.4 | 29.0 | 27.7 | 25.6 | 23.4 |
| Average temperature (°C) | 16.2 | 20.5 | 22.5 | 26.6 | 27.9 | 27.3 | 28.1 | 26.6 | 25.5 | 23.7 | 21.3 | 18.8 |
| Average night temperature (°C) | 11.2 | 16.2 | 18.1 | 22.4 | 23.8 | 24.4 | 24.4 | 23.8 | 23.1 | 20.6 | 18.2 | 15.2 |
| Absolute minimum temperature (°C) | 6.4 | 9.3 | 13.3 | 18.6 | 20.2 | 23.0 | 23.3 | 21.2 | 22.0 | 17.7 | 13.7 | 6.6 |
| 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 | 11.0 |
| 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 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 6.8 | 7.1 | 7.1 | 8.4 | 9.8 | 7.9 | 10.4 | 7.3 | 6.7 | 8.1 | 7.6 | 6.3 |
| Precipitation (mm) | 6 | 41 | 28 | 41 | 97 | 260 | 146 | 338 | 329 | 105 | 43 | 15 |
| Sunny days | 19 | 10 | 9 | 13 | 7 | 0 | 3 | 2 | 0 | 7 | 12 | 18 |
| Rainy days | 12 | 18 | 22 | 17 | 24 | 30 | 28 | 29 | 30 | 24 | 18 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ban Co Sum during the most sunny months:
The largest precipitation sum in Ban Co Sum is at