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
Heyang observes a minor decrease in the average high-temperature with the arrival of September, falling from August's tropical 30.9°C (87.6°F) to a moderately hot 25.1°C (77.2°F). Throughout September, the average low-temperature dips to a moderate 15.6°C (60.1°F).Humidity
With an average relative humidity of 63%, September is the most humid month.Rainfall
In September, the rain falls for 9.5 days. Throughout September, 40mm (1.57") of precipitation is accumulated. Throughout the year, there are 75 rainfall days, and 245mm (9.65") of precipitation is accumulated.Snowfall
March, May through October are months without snowfall.Daylight
In September, the average length of the day in Heyang is 12h and 25min.On the first day of the month, sunrise is at 06:12 and sunset at 19:06. On the last day of September, in Heyang, China, sunrise is at 06:33 and sunset at 18:25 CST.
Sunshine
In Heyang, the average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the most humid month?
What is the average humidity in September in Heyang?
How much does it rain in Heyang in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Heyang have in September?
How high is the UV index in September?
Average temperature in September
Heyang, China
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is July (32.7°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 15.6°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 (-4.5°C).
Average pressure in September
Heyang, China
- Average pressure in September: 1015mbar
The months with the highest atmospheric pressure are January and December (1028.8mbar).
The month with the lowest atmospheric pressure is July (1004.5mbar).
Average wind speed in September
Heyang, China
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is March (10.7km/h).
The calmest month (with the lowest average wind speed) is January (8.2km/h).
Average humidity in September
Heyang, China
- Average humidity in September: 63%
The month with the highest relative humidity is September (63%).
The month with the lowest relative humidity is March (40%).
Average rainfall in September
Heyang, China
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is August (51mm).
The driest month (with the least rainfall) is December (1mm).
Average rainfall days in September
Heyang, China
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is July (12.1 days).
The month with the least rainy days is January (1.1 days).
Average snowfall in September
Heyang, China
- Average snowfall in September: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are March, May, June, July, August, September and October (0mm).
Average snowfall days in September
Heyang, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Heyang, China
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in September
Heyang, China
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is December (29 days).
The month with the least sunshine days is July (16.6 days).
Average UV index in September
Heyang, China
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Heyang, China
- Average cloud cover in September: 34
The month with the most cloud cover is September (Cloud cover 34).
The month with the least cloud cover is December (Cloud cover 17).
Average visibility in September
Heyang, 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).
