Normally average temperatures in Vientiane in August is 25 with a general average high of 31 and low average expected to be 23 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 25 |
| High Temperature | 31 |
| Low Temperature | 23 |
Useful Links: Vientiane Weather: Average Weather & Yearly Climate