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
September
Weather in September
Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a hot 31.3°C (88.3°F) in August to a warm 28.1°C (82.6°F). Throughout September, the nighttime temperature averages to a comfortable 18.3°C (64.9°F).Heat index
For September, the heat index is computed to be a tropical 32°C (89.6°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
The average relative humidity in September in Hongjiang is 78%.Rainfall
In Hongjiang, in September, it is raining for 15 days, with typically 55mm (2.17") of accumulated precipitation. Throughout the year, in Hongjiang, there are 192.3 rainfall days, and 1031mm (40.59") of precipitation is accumulated.Snowfall
In Hongjiang, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 06:19 and sunset at 19:01. On the last day of September, sunrise is at 06:32 and sunset at 18:28 CST.
Sunshine
The average sunshine in September in Hongjiang is 7.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Hongjiang?
What is the average humidity in September in Hongjiang?
How much does it rain in Hongjiang in September?
When it does not snow in Hongjiang?
How many hours of daylight does Hongjiang have in September?
When is the sunrise / sunset in September in Hongjiang?
How many hours of sunshine does Hongjiang have in September?
What is the UV index reading in September in Hongjiang?
Average temperature in September
Hongjiang, China
- Average high temperature in September: 28.1°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (9.5°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is July (21.8°C).
The coldest month (with the lowest average low temperature) is January (2.5°C).
Average pressure in September
Hongjiang, China
- Average pressure in September: 1012.1mbar
The months with the highest atmospheric pressure are January and December (1025.9mbar).
The month with the lowest atmospheric pressure is July (1004.5mbar).
Average wind speed in September
Hongjiang, China
- Average wind speed in September: 5km/h
The windiest month (with the highest average wind speed) is July (6km/h).
The calmest month (with the lowest average wind speed) is November (4.5km/h).
Average humidity in September
Hongjiang, China
- Average humidity in September: 78%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are January and October (73%).
Average rainfall in September
Hongjiang, China
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is June (208mm).
The driest month (with the least rainfall) is January (36mm).
Average rainfall days in September
Hongjiang, China
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is June (22.3 days).
The month with the least rainy days is October (10.2 days).
Average snowfall in September
Hongjiang, China
- Average snowfall in September: 0mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Hongjiang, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Hongjiang, China
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is November (Average sunshine: 4h and 48min).
Average sunshine days in September
Hongjiang, China
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is June (6.3 days).
Average UV index in September
Hongjiang, 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, February, November and December (UV index 3).
Average cloud cover in September
Hongjiang, China
- Average cloud cover in September: 49
The month with the most cloud cover is June (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Hongjiang, China
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, October and December (9km).
The months with the lowest visibility are May and June (7km).
