September weather forecastHongyang, China

September

Weather in September

September, the first month of the autumn in Hongyang, is also a moderately hot month, with an average temperature fluctuating between 20.6°C (69.1°F) and 27.7°C (81.9°F).

Temperature

September registers an average high-temperature of a moderately hot 27.7°C (81.9°F), slightly varied from August's 30.6°C (87.1°F). In the month of September, an average of 20.6°C (69.1°F) marks the low-temperature.

Heat index

In September, the heat index is estimated at a tropical 32°C (89.6°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

In Hongyang, the average relative humidity in September is 85%.

Rainfall

In Hongyang, in September, it is raining for 20.5 days, with typically 90mm (3.54") of accumulated precipitation. In Hongyang, China, during the entire year, the rain falls for 219.1 days and collects up to 1088mm (42.83") of precipitation.

Daylight

In Hongyang, the average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 05:41 and sunset at 18:22. On the last day of the month, sunrise is at 05:54 and sunset at 17:50 CST.

Sunshine

In September, the average sunshine is 7.1h.

UV index

In Hongyang, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

The high-temperature, in September, in Hongyang, is 27.7°C (81.9°F), while the low-temperature averages to 20.6°C (69.1°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 32°C (89.6°F).

In September, the average relative humidity is 85%.

In Hongyang, during September, the rain falls for 20.5 days and regularly aggregates up to 90mm (3.54") of precipitation.

In September, the average day length is 12h and 19min.

On the first day of September, sunrise is at 05:41 and sunset at 18:22. On the last day of the month, sunrise is at 05:54 and sunset at 17:50 CST.

In September, the average sunshine duration is 7.1h.

In Hongyang, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Hongyang, China

  • Average high temperature in September: 27.7°C

The warmest month (with the highest average high temperature) is July (30.8°C).
The month with the lowest average high temperature is January (12.8°C).

  • Average low temperature in September: 20.6°C

The months with the highest average low temperature are July and August (22.7°C).
The coldest month (with the lowest average low temperature) is January (6.8°C).

Average pressure in September
Hongyang, China

  • Average pressure in September: 1010.9mbar

The month with the highest atmospheric pressure is January (1023.7mbar).
The month with the lowest atmospheric pressure is August (1006.1mbar).

Average wind speed in September
Hongyang, China

  • Average wind speed in September: 7.3km/h

The windiest month (with the highest average wind speed) is October (7.8km/h).
The calmest month (with the lowest average wind speed) is May (5.7km/h).

Average humidity in September
Hongyang, China

  • Average humidity in September: 85%

The month with the highest relative humidity is June (89%).
The month with the lowest relative humidity is December (81%).

Average rainfall in September
Hongyang, China

  • Average rainfall in September: 90mm

The wettest month (with the highest rainfall) is June (204mm).
The driest month (with the least rainfall) is December (36mm).

Average rainfall days in September
Hongyang, China

  • Average rainfall days in September: 20.5 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is February (14.4 days).

Average daylight in September /
Average sunshine in September
Hongyang, China

  • Average daylight in September: 12h and 18min

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 6min

The month with the most sunshine is July (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 3h and 48min).

Average sunshine days in September
Hongyang, China

  • Average sunshine days in September: 7.8 days

The month with the most sunshine days is December (13.6 days).
The month with the least sunshine days is June (7.1 days).

Average UV index in September
Hongyang, 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, February and December (UV index 3).

Average cloud cover in September
Hongyang, China

  • Average cloud cover in September: 58

The month with the most cloud cover is June (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 47).

Average visibility in September
Hongyang, China

  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, September, October, November and December (8km).
The month with the lowest visibility is June (6km).