Huainan weather in September
In September, Huainan has an average high of 28 °C82 °F and an average low of 18 °C64 °F, with about 88 mm3.5 in of precipitation. It is the 4th warmest month of the year and ranks 5th for precipitation.
How September compares with other months
Compared with August, September is 4.5 °C8.1 °F cooler on average and drier by 73 mm2.9 in. Compared with October, September is 5.8 °C10.5 °F warmer on average and wetter by 38 mm1.5 in. Daylight lasts about 12.3 hours around the middle of the month. Average relative humidity is 76% and the average cloud amount 64%.
Is September a good time to visit Huainan?
Yes — September is one of the most comfortable months to visit Huainan by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in September
For Huainan in September, pack light summer clothes such as T-shirts, shorts or light dresses.
September in nearby places
Other months in Huainan
- January7 °C44 °F / −3 °C26 °F
- February10 °C50 °F / −1 °C31 °F
- March16 °C61 °F / 4 °C39 °F
- April23 °C73 °F / 10 °C50 °F
- May28 °C83 °F / 16 °C60 °F
- June32 °C89 °F / 21 °C69 °F
- July32 °C90 °F / 24 °C76 °F
- August31 °C89 °F / 23 °C74 °F
- September28 °C82 °F / 18 °C64 °F
- October23 °C73 °F / 11 °C52 °F
- November16 °C60 °F / 4 °C40 °F
- December8 °C47 °F / −2 °C29 °F
Frequently asked questions
How warm is Huainan in September?
In September the average high in Huainan is 28 °C (82 °F) and the average low is 18 °C (64 °F).
Does it rain a lot in Huainan in September?
On average about 88 mm (3.5 in) of precipitation falls in September; it ranks 5th of the 12 months.
Is September the warmest month in Huainan?
No. The warmest month in Huainan is July, with an average high of 32 °C (90 °F). The coldest month is January, with an average low of -3 °C (26 °F).
How long is the day in Huainan in September?
In the middle of September the day in Huainan lasts about 12.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Huainan in September?
The average relative humidity in September is about 76%. Combined with warm days, it can feel muggy.
How cloudy is Huainan in September?
On average about 64% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.