Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings an average high-temperature of a warm 28.9°C (84°F), showing a slight difference from August's 30°C (86°F). The temperature lowers to an average of 20.1°C (68.2°F) during September nights.Heat index
The heat index for September is calculated to be a torrid 35°C (95°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In Cao Bang, the average relative humidity in September is 83%.Rainfall
In Cao Bang, Vietnam, in September, during 21.8 rainfall days, 103mm (4.06") of precipitation is typically accumulated. Throughout the year, there are 233.9 rainfall days, and 1056mm (41.57") of precipitation is accumulated.Snowfall
In Cao Bang, snow does not fall in February through December.Daylight
The average length of the day in September in Cao Bang is 12h and 17min.On the first day of the month, sunrise is at 05:37 and sunset at 18:12. On the last day of September, sunrise is at 05:46 and sunset at 17:43 +07.
Sunshine
In September, the average sunshine is 7.9h.UV index
April through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Cao Bang?
What is the average length of the day in September in Cao Bang?
When are sunrise and sunset in September?
How long on average sun shines in September?
When is the highest UV index?
What is the UV index reading in September?
Average temperature in September
Cao Bang, Vietnam
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (16.1°C).
- Average low temperature in September: 20.1°C
The month with the highest average low temperature is June (22°C).
The coldest month (with the lowest average low temperature) is January (8.8°C).
Average pressure in September
Cao Bang, Vietnam
- Average pressure in September: 1009.3mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is June (1003.4mbar).
Average wind speed in September
Cao Bang, Vietnam
- Average wind speed in September: 4.9km/h
The windiest month (with the highest average wind speed) is March (6.3km/h).
The calmest month (with the lowest average wind speed) is August (4.6km/h).
Average humidity in September
Cao Bang, Vietnam
- Average humidity in September: 83%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (75%).
Average rainfall in September
Cao Bang, Vietnam
- Average rainfall in September: 103mm
The wettest month (with the highest rainfall) is August (212mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in September
Cao Bang, Vietnam
- Average rainfall days in September: 21.8 days
The month with the highest number of rainy days is July (27.8 days).
The month with the least rainy days is February (12.7 days).
Average snowfall in September
Cao Bang, Vietnam
- Average snowfall in September: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Cao Bang, Vietnam
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Cao Bang, Vietnam
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 8h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Cao Bang, Vietnam
- Average sunshine days in September: 6.6 days
The month with the most sunshine days is December (14.8 days).
The month with the least sunshine days is July (1.9 days).
Average UV index in September
Cao Bang, Vietnam
- Average UV index in September: 6
The months with the highest UV index are April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover in September
Cao Bang, Vietnam
- Average cloud cover in September: 54
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is October (Cloud cover 51).
Average visibility in September
Cao Bang, Vietnam
- Average visibility in September: 7km
The months with the highest visibility are February, March, April, October and December (8km).
The months with the lowest visibility are January, May, June, July, August, September and November (7km).
Cao Bang, Vietnam
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