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
Hongmenhe records a mild change in average high-temperature during September, easing from a moderately hot 25.8°C (78.4°F) in August to a pleasant 20.9°C (69.6°F). Hongmenhe records a consistent low-temperature of 11.5°C (52.7°F) during September nights.Humidity
August and September, with an average relative humidity of 78%, are the most humid months.Rainfall
In Hongmenhe, in September, it is raining for 16.2 days, with typically 74mm (2.91") of accumulated precipitation. Throughout the year, there are 135.5 rainfall days, and 539mm (21.22") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 06:14 and sunset at 19:06. On the last day of the month, sunrise is at 06:34 and sunset at 18:26 CST.
Sunshine
In September, the average sunshine is 7.4h.UV index
In Hongmenhe, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the most humid month?
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?
How long on average sun shines in September in Hongmenhe?
What is the UV index intensity in September?
Average temperature in September
Hongmenhe, China
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is July (27°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is July (16.4°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).
Average pressure in September
Hongmenhe, China
- Average pressure in September: 1015mbar
The month with the highest atmospheric pressure is December (1028.1mbar).
The month with the lowest atmospheric pressure is July (1004.7mbar).
Average wind speed in September
Hongmenhe, China
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in September
Hongmenhe, China
- Average humidity in September: 78%
The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is December (48%).
Average rainfall in September
Hongmenhe, China
- Average rainfall in September: 74mm
The wettest month (with the highest rainfall) is July (120mm).
The driest month (with the least rainfall) is December (2mm).
Average rainfall days in September
Hongmenhe, China
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Hongmenhe, China
- Average snowfall in September: 0mm
The month with the highest snowfall is January (52mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Hongmenhe, China
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (4 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
Hongmenhe, China
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in September
Hongmenhe, China
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is December (27.2 days).
The month with the least sunshine days is July (7.1 days).
Average UV index in September
Hongmenhe, China
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Hongmenhe, China
- Average cloud cover in September: 44
The month with the most cloud cover is September (Cloud cover 44).
The month with the least cloud cover is December (Cloud cover 19).
Average visibility in September
Hongmenhe, China
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are July, August and September (8km).
