September weather forecastNanchong, China
September
Weather in September
Nanchong begins its transition into autumn come September, with the weather showing signs of cooling. Although still technically a summer month, temperature and rain trends from August roll over. Conditions continue to be a mix of sunny and cloudy days, together creating an enchanting aura of the changing seasons. Rainfall drops significantly as does the frequency of thunderstorms, bringing a sense of respite. The weather this month makes it an ideal time for visiting Nanchong, offering a perfect blend of warmth and coolness.Temperature
Arrival of September comes with a reduction in the average high-temperature, falling from a tropical 33.1°C (91.6°F) in August to a moderately hot 27°C (80.6°F). Nanchong in September anticipates an average nighttime temperature of 20.3°C (68.5°F).Heat index
For September, the heat index is calculated to be 29°C (84.2°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. 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 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
September is the most humid month, with an average relative humidity of 74%.Rainfall
In Nanchong, in September, during 17.7 rainfall days, 77mm (3.03") of precipitation is typically accumulated. In Nanchong, China, during the entire year, the rain falls for 154.2 days and collects up to 611mm (24.06") of precipitation.Snowfall
In Nanchong, snow does not fall in February through November.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 06:32 and sunset at 19:18. On the last day of September, sunrise is at 06:48 and sunset at 18:42 CST.
Sunshine
In Nanchong, the average sunshine in September is 6.7h.UV index
The average daily maximum UV index in September in Nanchong is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the UV index of 6 transforms into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nanchong, China
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is August (33.1°C).
The month with the lowest average high temperature is January (12°C).
- Average low temperature in September: 20.3°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (4.6°C).
Average pressure in September
Nanchong, China
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is December (1024.6mbar).
The month with the lowest atmospheric pressure is July (1001.2mbar).
Average wind speed in September
Nanchong, China
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is May (8.3km/h).
The calmest month (with the lowest average wind speed) is December (5.8km/h).
Average humidity in September
Nanchong, China
- Average humidity in September: 74%
The month with the highest relative humidity is September (74%).
The month with the lowest relative humidity is March (56%).
Average rainfall in September
Nanchong, China
- Average rainfall in September: 77mm
The wettest month (with the highest rainfall) is July (135mm).
The driest month (with the least rainfall) is January (5mm).
Average rainfall days in September
Nanchong, China
- Average rainfall days in September: 17.7 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Nanchong, China
- Average snowfall in September: 0mm
The months with the highest snowfall are January and December (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Nanchong, 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
Nanchong, China
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 6h and 42min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 5h and 30min).
Average sunshine days in September
Nanchong, China
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in September
Nanchong, China
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Nanchong, China
- Average cloud cover in September: 50
The month with the most cloud cover is September (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Nanchong, China
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).
