Lang Son in September: Weather & climate information
What's the weather like in Lang Son in September? See the historical monthly averages for temperature, rainfall and humidity.
September Averages
| Min Temperature | 21.7°C | Precipitation | 118.0mm |
| Max Temperature | 29.9°C | Rainy Days | 16.3 days |
| Humidity | 81.5% | Sunshine Hours | 10.8 hours |
Historical weather
September weather averages for Lang Son in the last 10 years ( 2010 to 2020).
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 22.0°30.0° | 2 23.0°31.0° | |||||
3 22.0°30.0° | 4 21.0°28.0° | 5 22.0°29.0° | 6 23.0°28.0° | 7 22.0°29.0° | 8 22.0°27.0° | 9 22.0°28.0° |
10 20.0°30.0° | 11 22.0°32.0° | 12 20.0°31.0° | 13 18.0°27.0° | 14 17.0°23.0° | 15 18.0°28.0° | 16 16.0°30.0° |
17 18.0°30.0° | 18 18.0°30.0° | 19 19.0°28.0° | 20 18.0°27.0° | 21 22.0°30.0° | 22 21.0°31.0° | 23 21.0°31.0° |
24 22.0°31.0° | 25 22.0°29.0° | 26 23.0°30.0° | 27 22.0°30.0° | 28 21.0°29.0° | 29 19.0°28.0° | 30 16.0°28.0° |
Temperature Graph (°C)
The average Lang Son temperature during September is around 25.6°C (78.08°F).
| Month | High | Low | Changes |
| August | 30.8°C (87.44°F) | 22.9°C (73.22°F) | -0.5°C (31.1°F) |
| September* | 29.9°C (85.82°F) | 21.7°C (71.06°F) | -1.1°C (30.02°F) |
| October | 26.9°C (80.42°F) | 18.3°C (64.94°F) | -3.3°C (26.06°F) |
Humidity Graph (%)
The average humidity in September in Lang Son is 81.5%, which is 1.8% lower than August and 3.4% higher than October.
Rainfall Graph (mm)
Average rainfall in September in Lang Son: 118.0mm
| August | September* | October |
| 224.4mm (-106.4mm) | 118.0mm | 63.4mm (+54.6mm) |
Rain Days Graph
Average rain days in September in Lang Son: 16.3 days
Daylight Graph
Average daylight in September in Lang Son: 12.3h
Frequently asked questions
How is the weather in Lang Son in September?
September is a hot month in Lang Son with an average temperature of 25.6°C. Lang Son's temperature in September ranges between 21.7°C (71.06°F) and 29.9°C (85.82°F).
Is Lang Son humid in September?
Yes, it is. The humidity of Lang Son in September is around 81.5% and rarely falls below 57.0%.
Does it rain often in Lang Son in September?
Yes, it does. It rains very often in Lang Son in September with an average of 16.3 rainy days and 118.0mm (4.65") of precipitation.
How many hours of daylight are there in September in Lang Son?
In September, Lang Son's average day-length is 12.3 hours.
How long is the sun out per day in Lang Son in September?
The average sunshine hours of Lang Son in September is 10.8 hours.
