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
Xujiahui records a mild change in average high-temperature during September, easing from a hot 31.8°C (89.2°F) in August to a warm 27.3°C (81.1°F). During the month of September, an average low-temperature of 21.5°C (70.7°F) is recorded.Heat index
September's average heat index is estimated at a tropical 30°C (86°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In Xujiahui, the average relative humidity in September is 78%.Rainfall
In Xujiahui, in September, during 9.4 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Xujiahui, during the entire year, the rain falls for 97.7 days and collects up to 183mm (7.2") of precipitation.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 05:30 and sunset at 18:18. On the last day of September, sunrise is at 05:47 and sunset at 17:40 CST.
Sunshine
The average sunshine in September in Xujiahui is 8h.UV index
In Xujiahui, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Xujiahui?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September in Xujiahui?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Xujiahui, China
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in September: 21.5°C
The month with the highest average low temperature is August (25.8°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).
Average pressure in September
Xujiahui, China
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is January (1027.1mbar).
The month with the lowest atmospheric pressure is July (1005.2mbar).
Average wind speed in September
Xujiahui, China
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is February (14.5km/h).
The calmest month (with the lowest average wind speed) is June (11.9km/h).
Average humidity in September
Xujiahui, China
- Average humidity in September: 78%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is December (65%).
Average rainfall in September
Xujiahui, China
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is June (36mm).
The driest month (with the least rainfall) is October (5mm).
Average rainfall days in September
Xujiahui, China
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is October (4 days).
Average snowfall in September
Xujiahui, China
- Average snowfall in September: 0mm
The months with the highest snowfall are January, February and December (1mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Xujiahui, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Xujiahui, China
- Average daylight in September: 12h and 2min
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: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Xujiahui, China
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is October (25.3 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Xujiahui, China
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Xujiahui, China
- Average cloud cover in September: 44
The month with the most cloud cover is June (Cloud cover 51).
The months with the least cloud cover are August and December (Cloud cover 36).
Average visibility in September
Xujiahui, China
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, May, October, November and December (10km).
The months with the lowest visibility are April, June, July, August and September (9km).
