Cool
Average highs are around 18°C, so pack for cooler days.
January verdict
Lang Son, Vietnam in January
Weather score38Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 2.4h per day, so this is not one of the brighter months. Rainfall averages 27mm, which is relatively low for holiday planning.
January weather
Monthly averages
Temp
18°C
Rain
27mm
Sun
2.4h
Weather score
38
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 27mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 2.4h 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
January18°C average high
January has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
January27mm average rain
January 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
January2.4 hours average sun
January is one of Lang Son's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay to September
This stretch has the strongest sunshine in the monthly averages.
Weather score
January38 weather score
January is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsApril and October to November
These months have the strongest weather score in the monthly averages.
