Mild
Average highs are around 20°C, so days are mild rather than hot.
December verdict
Lang Son, Vietnam in December
Weather score50Mixed
Mixed for holiday weather
Average highs are around 20°C, so days are mild rather than hot. Sunshine averages 3.9h per day, so this is not one of the brighter months. Rainfall averages 23mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
20°C
Rain
23mm
Sun
3.9h
Weather score
50
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 23mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 3.9h per day, so this is not one of the brighter months.
Map
Weather map
Compare Lang Son, Vietnam with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December20°C average high
December is on the cooler side of Lang Son's year, useful if you prefer less intense daytime heat.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
December23mm average rain
December is one of Lang Son's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December3.9 hours average sun
December sits close to Lang Son's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to September
This stretch has the strongest sunshine in the monthly averages.
Weather score
December50 weather score
December sits close to Lang Son's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsApril and October to November
These months have the strongest weather score in the monthly averages.
