Lang Son Weather
What is the weather like in Lang Son, Vietnam right now? Currently: 29°C. Clear.
Colorful rice field in valley in Bac Son, Lang Son, Vietnam
7 Days Weather Forecast
Local hourly Lang Son weather forecast of rain, temperature, sunrise, humidity, wind and pressure.
- Sun: 05:28 AM
- Wind: 6.75 km/h
- Humidity: 52%
- Pressure: 1009hPa
- Sun: 05:27 AM
- Wind: 5.89 km/h
- Humidity: 46%
- Pressure: 1008hPa
- Sun: 05:27 AM
- Wind: 3.44 km/h
- Humidity: 44%
- Pressure: 1007hPa
- Sun: 05:26 AM
- Wind: 2.19 km/h
- Humidity: 85%
- Pressure: 1009hPa
- Sun: 05:25 AM
- Wind: 3.04 km/h
- Humidity: 88%
- Pressure: 1014hPa
- Sun: 05:24 AM
- Wind: 1.8 km/h
- Humidity: 85%
- Pressure: 1014hPa
- Sun: 05:24 AM
- Wind: 2.2 km/h
- Humidity: 94%
- Pressure: 1014hPa
- Sun: 05:23 AM
- Wind: 2.26 km/h
- Humidity: 88%
- Pressure: 1015hPa
Last updated: April 21, 2025
Past Weather in Lang Son
Historic weather in Lang Son from 20 April, 2025 back to 14 April, 2025.
Lang Son Temperature Yesterday (20 April, 2025)
- High temperature yesterday: 35.14°C
- Low temperature yesterday: 22.23°C
- Average temperature yesterday: 28.69 °C
Lang Son Weather History for the last 30 days
| Date | Conditions | Temp | Humidity | Wind |
|---|---|---|---|---|
| Sun, 20 April 2025 | Clear | 31.37°C | 54.0% | 5km/h |
| Sat, 19 April 2025 | Clear | 31.83°C | 52.0% | 5km/h |
| Fri, 18 April 2025 | Rain | 23.11°C | 88.0% | 4km/h |
| Thu, 17 April 2025 | Rain | 22.1°C | 75.0% | 1km/h |
| Wed, 16 April 2025 | Clouds | 28.14°C | 42.0% | 3km/h |
| Tue, 15 April 2025 | Clouds | 21.4°C | 60.0% | 1km/h |
| Mon, 14 April 2025 | Clouds | 22.6°C | 48.0% | 1km/h |
| Sun, 13 April 2025 | Clouds | 20.42°C | 44.0% | 1km/h |
| Sat, 12 April 2025 | Rain | 23.47°C | 86.0% | 5km/h |
| Fri, 11 April 2025 | Rain | 24.56°C | 78.0% | 3km/h |
| Thu, 10 April 2025 | Clouds | 26.35°C | 68.0% | 4km/h |
| Wed, 09 April 2025 | Rain | 23.27°C | 78.0% | 2km/h |
| Tue, 08 April 2025 | Rain | 21.67°C | 89.0% | 2km/h |
| Mon, 07 April 2025 | Rain | 17.73°C | 98.0% | 1km/h |
| Sun, 06 April 2025 | Rain | 17.5°C | 91.0% | 2km/h |
| Sat, 05 April 2025 | Rain | 17.88°C | 96.0% | 2km/h |
| Fri, 04 April 2025 | Rain | 14.17°C | 96.0% | 2km/h |
| Thu, 03 April 2025 | Clouds | 14.88°C | 75.0% | 1km/h |
| Wed, 02 April 2025 | Clouds | 12.63°C | 76.0% | 2km/h |
| Tue, 01 April 2025 | Rain | 10.72°C | 85.0% | 2km/h |
| Mon, 31 March 2025 | Rain | 10.96°C | 84.0% | 3km/h |
| Sun, 30 March 2025 | Clouds | 9.16°C | 57.0% | 3km/h |
| Sat, 29 March 2025 | Rain | 13.61°C | 74.0% | 4km/h |
| Fri, 28 March 2025 | Rain | 17.05°C | 56.0% | 9km/h |
| Thu, 27 March 2025 | Clear | 29.32°C | 54.0% | 4km/h |
| Wed, 26 March 2025 | Clear | 27.53°C | 52.0% | 5km/h |
| Tue, 25 March 2025 | Rain | 26.55°C | 43.0% | 4km/h |
| Mon, 24 March 2025 | Clouds | 26.89°C | 35.0% | 3km/h |
| Sun, 23 March 2025 | Clouds | 25.41°C | 41.0% | 2km/h |
| Sat, 22 March 2025 | Clouds | 23.27°C | 43.0% | 2km/h |
Lang Son Climate
Lang Son lies on a “Humid subtropical, dry winter” climate (Köppen classification: Cwa). The highest temperature is 31.5°C (88.7°F) and the lowest is 10.5°C (50.9°F), with an average yearly temperature of 21.8°C (71.28°F). Annual rainfall averages nearly 983.9 millimetres (38.74 inches).
Monthly Averages
Historical monthly average weather conditions for Lang Son.
| Months | High / Low (°C) | Rain |
|---|---|---|
| January | 17.6° / 10.5° | 7.5 days |
| February | 20.3° / 12.7° | 5.4 days |
| March | 24.1° / 16.2° | 7.4 days |
| April | 27.6° / 19.2° | 9.1 days |
| May | 30.7° / 22.2° | 16.4 days |
| June | 31.5° / 23.8° | 17.4 days |
| July | 31.1° / 23.5° | 19.9 days |
| August | 30.8° / 22.9° | 21.6 days |
| September | 29.9° / 21.7° | 16.3 days |
| October | 26.9° / 18.3° | 8.9 days |
| November | 23.9° / 15.4° | 6.3 days |
| December | 19.0° / 10.9° | 4.8 days |
Frequently asked questions
What is the coldest month in Lang Son?
January is the coldest month in Lang Son, with the average temperature dropping to a low of 10.5°C (50.9°F).
How much rain does Lang Son get every year?
Lang Son gets an approximate 983.9mm (38.74") of precipitation. Average number of rain days annually is 141.0 days.
What month has the least rain in Lang Son?
The driest month in Lang Son is December with around 4.8 rain days and a precipitation of 18.8mm (0.74").
What months are the most humid in Lang Son?
July and August in Lang Son have the highest humidity, averaging 83.3%.
What month has the least sunshine in Lang Son?
The month that has the least sunshine in Lang Son is January which only experiences an average of 5.7h of sunshine.
Which month has the most daylight in Lang Son?
With an average of 13.4h of daylight, June has more daylight hours than any other months in Lang Son.
What is the hottest month in Lang Son?
June is the hottest month in Lang Son with temperature averaging between 31.5°C (88.7°F) and 23.8°C (74.84°F).
When does Lang Son have the most sunshine?
June has an average of 12.3h of sunshine, making it the month with the most sunshine in Lang Son.
What month has the most rainfall in Lang Son?
The wettest month of Lang Son is August with approximately 21.6 rain days and total precipitation of 224.4mm (8.83").
What month has the least humidity in Lang Son?
With a relative humidity of 73.9%, December is the least humid month in Lang Son.
Which month has the shortest daylight in Lang Son?
December has the least daylight in Lang Son, with an average of 10.8h of daylight.
