Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
May verdict
Lang Son, Vietnam in May
Weather score56Good
Good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 5.7h per day, enough for a balanced month. Rainfall averages 185mm, so showers are a real planning factor.
May weather
Monthly averages
Temp
30°C
Rain
185mm
Sun
5.7h
Weather score
56
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 185mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.7h per day, enough for a balanced month.
Map
Weather map
Compare Lang Son, Vietnam with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May30°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
May185mm average rain
May is wetter than Lang Son's yearly average, so flexible plans matter more.
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
May5.7 hours average sun
May is brighter than Lang Son's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to September
This stretch has the strongest sunshine in the monthly averages.
Weather score
May56 weather score
May 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.
