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 is marked by a minor decrease in temperature, transitioning from a tropical 30.2°C (86.4°F) in August to a warm 26.1°C (79°F). Yancheng usually reports an average low-temperature of 18.3°C (64.9°F) during the month of September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Yancheng, in September, it is raining for 11 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, there are 118.5 rainfall days, and 474mm (18.66") of precipitation is accumulated.Snowfall
In Yancheng, snow does not fall in April through October.Daylight
In Yancheng, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 05:33 and sunset at 18:24. On the last day of the month, sunrise is at 05:53 and sunset at 17:45 CST.
Sunshine
The average sunshine in September is 8.1h.UV index
In Yancheng, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 during September translates into the following directions:
Take necessary precautions - Defending against sun damage is advocated. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
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 in Yancheng?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Yancheng, China
- Average high temperature in September: 26.1°C
The warmest month (with the highest average high temperature) is July (30.7°C).
The month with the lowest average high temperature is January (6.6°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is July (23.2°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in September
Yancheng, China
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is January (1028mbar).
The month with the lowest atmospheric pressure is July (1004.6mbar).
Average wind speed in September
Yancheng, China
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is March (13.2km/h).
The calmest month (with the lowest average wind speed) is September (10km/h).
Average humidity in September
Yancheng, China
- Average humidity in September: 80%
The month with the highest relative humidity is August (86%).
The months with the lowest relative humidity are January and December (62%).
Average rainfall in September
Yancheng, China
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is July (118mm).
The driest month (with the least rainfall) is January (12mm).
Average rainfall days in September
Yancheng, China
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Yancheng, China
- Average snowfall in September: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Yancheng, 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 May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Yancheng, China
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is April (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in September
Yancheng, China
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is December (24.3 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in September
Yancheng, 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 and December (UV index 2).
Average cloud cover in September
Yancheng, China
- Average cloud cover in September: 44
The month with the most cloud cover is July (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in September
Yancheng, China
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, October, November and December (10km).
The months with the lowest visibility are July, August and September (8km).
