Lạng Sơn Weather in May
During May, Lạng Sơn experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 23°C (73°F). May sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in Lạng Sơn in May
Lạng Sơn is in the rainy season in May, with rain on around 15 days and an average of 220 mm (8.7 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Lạng Sơn in May
Daytime temperatures in Lạng Sơn reach 31°C (88°F) in May, dropping to 23°C (73°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. With overnight lows of 23°C (73°F), evenings stay pleasantly warm.
Sunshine in Lạng Sơn in May
The area experiences a moderate amount of sunshine, with approximately 180 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February, March, October, November and December typically offer the best weather for Lạng Sơn.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Lạng Sơn's climate page.
Lạng Sơn Temperature in May
Min Temperature
23°C (73°F)
Max Temperature
31°C (88°F)
Chance of Rain
49%
Precipitation
220 mm (8.7 in)
Rainy days
15 days
Humidity
81%
Sunshine
180 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Lạng Sơn typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are warm, with lows typically ranging from 22°C (72°F) to 24°C (75°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Lạng Sơn in May
Browse day-by-day weather records for Lạng Sơn spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lạng Sơn historical weather extremes in May
The extremes listed below come from historical weather data collected in Lạng Sơn from 1976 through 2026.
- On May 5, 2003, temperatures climbed to 39°C (102°F), marking the warmest May day on record.
- On May 4, 1976, Lạng Sơn saw its coldest May day with temperatures maxing out at 19°C (66°F).
- The lowest overnight temperature recorded in May was 14°C (57°F) (May 18, 2006).
Best Places in Vietnam in May
Find out more about the weather in Vietnam and which places have the best travel conditions in this month. See all of Vietnam in May →
perfect weather
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tolerable
unpleasant
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What to Wear in Lạng Sơn in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Lạng Sơn in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Lạng Sơn's climate page.
Temperature Rainfall Sunshine Humidity
See the full Lạng Sơn climate overview or explore weather in Vietnam.
