Vientiane Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in Vientiane (Vientiane). The numbers are calculated over a 30-year period to provide a reliable average.

• A lot of rain (rainy season) falls in the months: May, June, July, August, September and October.
• Vientiane has dry periods in January, February, November and December.
• On average, August is the wettest month with 400 mm of precipitation.
• On average, December is the driest month with 9 mm of precipitation.
• The average amount of annual precipitation is 1948 mm.