Weather · Vientiane, Laos
Vientiane Weather in September
Vientiane in September runs 30°C / 24°C with 385mm of rain, a reasonable time to visit.
Avg high
30°C
86°F
Avg low
24°C
75°F
Rainfall
385mm
#2 wettest of 12
What to pack
Light, breathable clothes and strong sun protection. Pack a rain jacket or travel umbrella, showers are frequent this month.
Timing a trip around the weather? A Local Friend in Vientiane builds it around the season for you.