September weather forecastHechuan, China
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Hechuan, China, with temperature in the range of an average high of 27.5°C (81.5°F) and an average low of 20.5°C (68.9°F).Temperature
The arrival of September corresponds with a shift in temperature, down from a hot 33.3°C (91.9°F) in August to a moderately hot 27.5°C (81.5°F). Throughout September, Hechuan anticipates an average low-temperature of 20.5°C (68.9°F).Heat index
For most parts of September, the heat index is estimated at a tropical 30°C (86°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The most humid month is September, with an average relative humidity of 75%.Rainfall
In Hechuan, in September, during 13.6 rainfall days, 55mm (2.17") of precipitation is typically accumulated. Throughout the year, there are 141.9 rainfall days, and 518mm (20.39") of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In Hechuan, the average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 06:32 and sunset at 19:17. On the last day of September, in Hechuan, sunrise is at 06:47 and sunset at 18:41 CST.
Sunshine
In Hechuan, the average sunshine in September is 6.2h.UV index
The average daily maximum UV index in September in Hechuan is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hechuan, China
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is August (33.3°C).
The month with the lowest average high temperature is January (12°C).
- Average low temperature in September: 20.5°C
The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).
Average pressure in September
Hechuan, China
- Average pressure in September: 1010.6mbar
The month with the highest atmospheric pressure is December (1024.7mbar).
The month with the lowest atmospheric pressure is July (1001mbar).
Average wind speed in September
Hechuan, China
- Average wind speed in September: 5.7km/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 December (5.1km/h).
Average humidity in September
Hechuan, China
- Average humidity in September: 75%
The month with the highest relative humidity is September (75%).
The month with the lowest relative humidity is March (56%).
Average rainfall in September
Hechuan, China
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is July (101mm).
The driest months (with the least rainfall) are January and December (7mm).
Average rainfall days in September
Hechuan, China
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Hechuan, China
- Average snowfall in September: 0mm
The month with the highest snowfall is January (1mm).
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
Hechuan, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 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
Hechuan, 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 12min
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 24min).
Average sunshine days in September
Hechuan, China
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in September
Hechuan, China
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Hechuan, China
- Average cloud cover in September: 53
The months with the most cloud cover are September and October (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Hechuan, China
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, October, November and December (10km).
The months with the lowest visibility are May, June, July, August and September (9km).
