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 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
As August transitions into September, China sees a gentle drop in the average high-temperature, transitioning from a sweltering 37.3°C (99.1°F) to a tropical 33.1°C (91.6°F). The average nighttime temperature lowers to a moderately hot 24.2°C (75.6°F) throughout September.Heat index
In September, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. 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. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The most humid month is September, with an average relative humidity of 63%.Rainfall
The month with the most rainfall is September, when the rain falls for 16.7 days and typically aggregates up to 90mm (3.54") of precipitation.Snowfall
In China, snow does not fall in January through November.Daylight
The average length of the day in September in China is 12h and 17min.On the first day of the month, sunrise is at 6:17 am and sunset at 6:55 pm. On the last day of September, in China, sunrise is at 6:29 am and sunset at 6:24 pm CST.
Sunshine
In China, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
How hot is it in China in September?
What is the most humid month in China?
What is the average humidity in September in China?
What is the rainiest month in China?
How much does it rain in China in September?
When it does not snow in China?
What is the average length of the day in September in China?
When are sunrise and sunset in September in China?
How long on average sun shines in September in China?
What is the UV index reading in September in China?
Average temperature in September
China, Mexico
- Average high temperature in September: 33.1°C
The warmest month (with the highest average high temperature) is August (37.3°C).
The month with the lowest average high temperature is January (20.5°C).
- Average low temperature in September: 24.2°C
The month with the highest average low temperature is August (26°C).
The coldest month (with the lowest average low temperature) is January (11°C).
Average pressure in September
China, Mexico
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is January (1020mbar).
The month with the lowest atmospheric pressure is May (1011.4mbar).
Average wind speed in September
China, Mexico
- Average wind speed in September: 14.4km/h
The windiest month (with the highest average wind speed) is July (20.7km/h).
The calmest month (with the lowest average wind speed) is December (13.2km/h).
Average humidity in September
China, Mexico
- Average humidity in September: 63%
The month with the highest relative humidity is September (63%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
China, Mexico
- Average rainfall in September: 90mm
The wettest month (with the highest rainfall) is September (90mm).
The driest months (with the least rainfall) are January and February (11mm).
Average rainfall days in September
China, Mexico
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is September (16.7 days).
The month with the least rainy days is January (6 days).
Average snowfall days in September
China, Mexico
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
China, Mexico
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).
Average sunshine days in September
China, Mexico
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is September (11.5 days).
Average UV index in September
China, Mexico
- Average UV index in September: 7
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
China, Mexico
- Average cloud cover in September: 31
The month with the most cloud cover is September (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
China, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
China, Mexico
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