September weather forecastChongqing, China
September
Weather in September
As September rolls in, the sweltering summer in Chongqing begins to wane. Nevertheless, the warmth does not drop too quickly, still providing a substantial amount of heat. The rainfall, too, takes a dip, falling to 62mm (2.44") over 15.9 days. It's a popular time for both locals and tourists, who choose to venture outdoors to appreciate the city's scenic spots. As Chongqing transitions towards autumn, the city’s ambiance begins taking on a calm and tranquil character.Temperature
The arrival of September corresponds with a temperature reduction, down from August's hot 34.4°C (93.9°F) to a moderately hot 28.5°C (83.3°F). September witnesses an average nighttime temperature of 21.3°C (70.3°F) in Chongqing.Heat index
September's mean heat index is computed to be a hot 32°C (89.6°F). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.Heat index determinations are made taking into account the shade and light air movements. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity is 71%.Rainfall
In Chongqing, during September, the rain falls for 15.9 days and regularly aggregates up to 62mm (2.44") of precipitation. In Chongqing, during the entire year, the rain falls for 153.3 days and collects up to 571mm (22.48") of precipitation.Snowfall
February through November are months without snowfall.Daylight
In Chongqing, the average length of the day in September is 12h and 20min.On the first day of September in Chongqing, sunrise is at 06:31 and sunset at 19:16. On the last day of the month, sunrise is at 06:46 and sunset at 18:40 CST.
Sunshine
In September, the average sunshine in Chongqing is 6.3h.UV index
The average daily maximum UV index in September in Chongqing is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chongqing, China
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is August (34.4°C).
The month with the lowest average high temperature is January (12.3°C).
- Average low temperature in September: 21.3°C
The month with the highest average low temperature is August (25.4°C).
The coldest month (with the lowest average low temperature) is January (6.3°C).
Average pressure in September
Chongqing, China
- Average pressure in September: 1010.8mbar
The month with the highest atmospheric pressure is December (1024.5mbar).
The month with the lowest atmospheric pressure is July (1001.4mbar).
Average wind speed in September
Chongqing, China
- Average wind speed in September: 5.5km/h
The windiest month (with the highest average wind speed) is March (6.9km/h).
The calmest month (with the lowest average wind speed) is October (5.1km/h).
Average humidity in September
Chongqing, China
- Average humidity in September: 71%
The month with the highest relative humidity is June (72%).
The months with the lowest relative humidity are February and March (55%).
Average rainfall in September
Chongqing, China
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is July (109mm).
The driest month (with the least rainfall) is December (7mm).
Average rainfall days in September
Chongqing, China
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
Chongqing, China
- 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 and November (0mm).
Average snowfall days in September
Chongqing, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Chongqing, China
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 6h and 18min
The month with the most sunshine is August (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).
Average sunshine days in September
Chongqing, China
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
Chongqing, China
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Chongqing, China
- Average cloud cover in September: 53
The month with the most cloud cover is October (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Chongqing, China
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, August, November and December (10km).
The months with the lowest visibility are May, June, July, September and October (9km).








