September weather forecastChengde, China
September
Weather in September
September marks the beginning of autumn with a decline in temperatures in Chengde. High temperatures drop to an average of 23°C (73.4°F), while the lows dip to 13.9°C (57°F). Rainfall occurrence reduces significantly, yielding a drier atmosphere and signalling the end of the wet season. Even though the daylight hours start dwindling to around 12.5 hours a day, the city experiences pleasant weather. As a transition month, September showcases the beautiful onset of autumn in Chengde.Temperature
The start of September involves a temperature drop, moving from a moderately hot 28.6°C (83.5°F) in August to a still warm 23°C (73.4°F). Chengde records a steady low-temperature average of 13.9°C (57°F) during September.Humidity
The average relative humidity in September is 54%.Rainfall
In September, the rain falls for 8.7 days. Throughout September, 30mm (1.18") of precipitation is accumulated. In Chengde, during the entire year, the rain falls for 67.4 days and collects up to 251mm (9.88") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Chengde is 12h and 29min.On the first day of the month, sunrise is at 05:35 and sunset at 18:41. On the last day of September, in Chengde, sunrise is at 06:03 and sunset at 17:52 CST.
Sunshine
In September, the average sunshine in Chengde is 10.4h.UV index
In Chengde, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chengde, China
- Average high temperature in September: 23°C
The warmest month (with the highest average high temperature) is July (29.8°C).
The month with the lowest average high temperature is January (-5.3°C).
- Average low temperature in September: 13.9°C
The month with the highest average low temperature is July (21.1°C).
The coldest month (with the lowest average low temperature) is January (-12.8°C).
Average pressure in September
Chengde, China
- Average pressure in September: 1014.9mbar
The month with the highest atmospheric pressure is January (1029.7mbar).
The month with the lowest atmospheric pressure is July (1005.2mbar).
Average wind speed in September
Chengde, China
- Average wind speed in September: 8.6km/h
The windiest month (with the highest average wind speed) is May (13.9km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in September
Chengde, China
- Average humidity in September: 54%
The month with the highest relative humidity is August (58%).
The month with the lowest relative humidity is April (34%).
Average rainfall in September
Chengde, China
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is August (64mm).
The driest months (with the least rainfall) are January and December (1mm).
Average rainfall days in September
Chengde, China
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is December (0.7 days).
Average snowfall in September
Chengde, China
- Average snowfall in September: 0mm
The month with the highest snowfall is February (31mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Chengde, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.2 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
Chengde, China
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 54min).
Average sunshine days in September
Chengde, China
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is January (29.8 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in September
Chengde, China
- Average UV index in September: 4
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 2).
Average cloud cover in September
Chengde, China
- Average cloud cover in September: 21
The month with the most cloud cover is July (Cloud cover 28).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in September
Chengde, China
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
