Lạng Sơn, Vietnam Weather

Lạng Sơn,  Weather
(Photo by Ammie Ngo on Unsplash)

Current conditions

Updated:
26°C
78.8°F
°C °F

Condition: Drizzle

Pressure: 975 hPa

Feel like: 29 °C

Temperature: 26°C

Cloud: 73%

Humidity: 82%

Wind: SSW - 20 km/h

Visibility: 16.02 km

Weather forecast

Thu
14 May
24°C / 33°C
Slight Thunderstorm
Fri
15 May
23°C / 31°C
Slight Thunderstorm
Sat
16 May
24°C / 28°C
Moderate Rain Showers
Sun
17 May
23°C / 28°C
Moderate Drizzle
Mon
18 May
24°C / 28°C
Moderate Drizzle
Hourly forecast today:
01:00 AM
23° / 26°
23° / 26°
Drizzle
82% 40 km/h
02:00 AM
23° / 28°
23° / 28°
Drizzle
76% 40 km/h
03:00 AM
23° / 29°
23° / 29°
Drizzle
68% 40 km/h
04:00 AM
23° / 29°
23° / 29°
Overcast
67% 40 km/h
05:00 AM
23° / 30°
23° / 30°
Clear Sky
64% 40 km/h
06:00 AM
23° / 31°
23° / 31°
Mainly Clear
60% 40 km/h
07:00 AM
22° / 31°
22° / 31°
Mainly Clear
61% 44 km/h
08:00 AM
23° / 30°
23° / 30°
Drizzle
65% 42 km/h
09:00 AM
23° / 30°
23° / 30°
Clear Sky
67% 41 km/h
10:00 AM
23° / 29°
23° / 29°
Slight Thunderstorm
70% 38 km/h
11:00 AM
24° / 28°
24° / 28°
Slight Thunderstorm
76% 33 km/h

30 Day Averages and Extremes

  • Average high 29.07°C
  • Average low 21.5°C
  • Hottest day 34°C (23 May 2026)
  • Coldest day 16°C (03 May 2026)
  • Average humidity 80.67%
  • Days with precipitation 26 days
  • Highest precipitation 56 mm (20 May 2026)

Yesterday's Data

  • Max: 31°C
  • Min: 23°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Lạng Sơn over the next 12 hours

Temperature and possibility of rain in Lạng Sơn in the coming days

Rainfall in Lạng Sơn in the coming days

Lạng Sơn Climate Summary

Lạng Sơn features a Humid subtropical, dry winter (Köppen classification: Cwa), with an average annual temperature of 23.13ºC (73.63ºF), which is about -3.12% lower than the national average for Vietnam. Annually, the city experiences approximately 74.96 millimeters (2.95 inches) of rainfall, spread across 142.63 rainy days, accounting for 39.08% of the year.

Longitude 21.853708
Latitude 106.761519
Yearly high temperature 26.05ºC (78.89ºF)
Yearly low temperature 18.15ºC (64.67ºF)
Hottest month May 30.67ºC (87.21ºF)
Coldest month January 10.55ºC (50.99ºF)
Yearly precip 74.96mm (2.95in)
Days with rainfall 142.63 days (39.08%)
Driest month December (73.19%)
Wettest month August (83.36%)

Weather averages by month

Month High / Low (°C) Rain
January 17.5° / 10.55° 7.64 days
February 20.25° / 12.81° 4.91 days
March 24.09° / 16.29° 7.36 days
April 27.62° / 19.29° 9.27 days
May 30.67° / 22.22° 16.91 days
June 31.43° / 23.77° 17.55 days
July 31.07° / 23.52° 20.27 days
August 30.67° / 22.9° 22.09 days
September 29.78° / 21.69° 16.36 days
October 26.89° / 18.38° 8.73 days
November 23.85° / 15.48° 6.27 days
December 18.82° / 10.92° 5.27 days

Frequently asked questions

1. What is the hottest month in Lạng Sơn?

May has the highest average monthly temperature (daily mean of 30.67ºC) and January are the coolest (daily mean of 10.55ºC).

2. What should I wear in Lạng Sơn today?

For today's very hot weather in Lạng Sơn, with the high temperatures above 33ºC (91.4ºF), consider wearing:
- Broad-brimmed sun hat
- Light, natural fabrics (like cotton or linen)
- Lightweight, loose-fitting shorts
- Airy sandals or flip-flops

Temperature

Early
23°C / 29°C
Morning
23°C / 30°C
Afternoon
23°C / 25°C
Evening
23°C / 24°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 450
  • CO 182
  • NH3 0
  • NO2 12
  • O3 66
  • PM10 23
  • PM25 22
  • SO2 14
  • CH4 1,373

Sunrise / Sunset

22:14
11:24