In December, Vientiane typically sees daytime highs of 28.2°C and overnight lows around 16.0°C. Compared to the annual average high of 31.3°C, December runs -3.1°C.
December in Vientiane averages a daytime high of 28.2°C and an overnight low of 16.0°C.
December runs -3.1°C compared to Vientiane's annual average high of 31.3°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 28.2°C and cooler evenings around 16.0°C.