September weather forecastSishui, China
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Sishui, China, with temperature in the range of an average low of 16.2°C (61.2°F) and an average high of 25.7°C (78.3°F).Temperature
Sishui experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from 29.8°C (85.6°F) in August to a still moderately hot 25.7°C (78.3°F). Throughout September, Sishui records an average temperature of 16.2°C (61.2°F) at night.Humidity
The average relative humidity in September in Sishui is 71%.Rainfall
In September, the rain falls for 10.1 days. Throughout September, 33mm (1.3") of precipitation is accumulated. Throughout the year, there are 93 rainfall days, and 436mm (17.17") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 05:43 and sunset at 18:38. On the last day of September, sunrise is at 06:05 and sunset at 17:56 CST.
Sunshine
In September, the average sunshine is 9.4h.UV index
The average daily maximum UV index in September in Sishui is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 in September translates into these instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sishui, China
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is July (31.8°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in September: 16.2°C
The month with the highest average low temperature is July (22.6°C).
The coldest month (with the lowest average low temperature) is January (-3.7°C).
Average pressure in September
Sishui, China
- Average pressure in September: 1014.4mbar
The month with the highest atmospheric pressure is January (1028.8mbar).
The month with the lowest atmospheric pressure is July (1003.9mbar).
Average wind speed in September
Sishui, China
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is April (12km/h).
The calmest month (with the lowest average wind speed) is September (7.3km/h).
Average humidity in September
Sishui, China
- Average humidity in September: 71%
The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is March (44%).
Average rainfall in September
Sishui, China
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is August (143mm).
The driest month (with the least rainfall) is January (6mm).
Average rainfall days in September
Sishui, China
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is August (18.9 days).
The month with the least rainy days is January (1.4 days).
Average snowfall in September
Sishui, 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
Sishui, 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 April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sishui, China
- Average daylight in September: 12h and 24min
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: 9h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in September
Sishui, China
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is January (28.4 days).
The month with the least sunshine days is August (9.9 days).
Average UV index in September
Sishui, 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, November and December (UV index 2).
Average cloud cover in September
Sishui, China
- Average cloud cover in September: 33
The month with the most cloud cover is August (Cloud cover 36).
The month with the least cloud cover is December (Cloud cover 22).
Average visibility in September
Sishui, China
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
