Cool
Average highs are around 18°C, so pack for cooler days.
February verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 1.9h per day, so this is not one of the brighter months. Rainfall averages 32mm, which is relatively low for holiday planning.

Monthly averages
Temp
18°C
Rain
32mm
Sun
1.9h
Weather score
40
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Drier
Rainfall averages 32mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 1.9h per day, so this is not one of the brighter months.
Map
Compare Lang Son, Vietnam with nearby places by weather score, rain, sun, temperature, and swim conditions.
February18°C average high
February 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.
February32mm average rain
February 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.
February1.9 hours average sun
February 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.
February40 weather score
February 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.