Weather · Vientiane, Laos
Vientiane Weather in December
December in Vientiane averages 28°C by day and 18°C at night, with about 1mm of rain. That makes it one of the best months to visit.
Avg high
28°C
82°F
Avg low
18°C
64°F
Rainfall
1mm
#12 wettest of 12
What to pack
Summer clothes by day; a light layer for evenings. Rain is unlikely to interrupt your plans.
Timing a trip around the weather? A Local Friend in Vientiane builds it around the season for you.