Baoshan weather in September

Shanghai, China · long-term averages 2001–2025 · full-year climate of Baoshan

Average high
27 °C81 °F
Average low
21 °C70 °F
Precipitation
129 mm5.1 in
Daylight
12.3 h
Humidity
79%
Cloud amount
63%

In September, Baoshan has an average high of 27 °C81 °F and an average low of 21 °C70 °F, with about 129 mm5.1 in of precipitation. It is the 3rd warmest month of the year and ranks 4th for precipitation.

How September compares with other months

Compared with August, September is 3.9 °C6.9 °F cooler on average and drier by 29 mm1.1 in. Compared with October, September is 5.2 °C9.4 °F warmer on average and wetter by 57 mm2.2 in. Daylight lasts about 12.3 hours around the middle of the month. Average relative humidity is 79% and the average cloud amount 63%.

Is September a good time to visit Baoshan?

September is not among the most comfortable months by our comfort score: it is fairly wet (129 mm5.1 in) and it is humid (79%). The most comfortable months in Baoshan are May and October.

What to wear in September

For Baoshan in September, pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.

September in nearby places

September averages in nearby places
PlaceHigh °C°FLow °C°FPrecip. mmin
Baoshan278121701295.1
Shanghai288221701365.4
Chongming267923741305.1
Kunshan278121701295.1
Fengxiang288221701365.4
Suzhou288220671164.6
Nantong288219661094.3
Jiaxing288320691244.9
Zhangjiagang288219661094.3

Nearby places that are more than 1 °C1.8 °F cooler: Nantong and Zhangjiagang.

Other months in Baoshan

  • January8 °C46 °F / 1 °C33 °F
  • February9 °C49 °F / 2 °C35 °F
  • March14 °C57 °F / 5 °C41 °F
  • April19 °C67 °F / 10 °C50 °F
  • May25 °C76 °F / 16 °C61 °F
  • June28 °C82 °F / 21 °C69 °F
  • July31 °C88 °F / 25 °C77 °F
  • August31 °C88 °F / 25 °C78 °F
  • September27 °C81 °F / 21 °C70 °F
  • October23 °C73 °F / 16 °C60 °F
  • November17 °C63 °F / 10 °C50 °F
  • December10 °C50 °F / 3 °C38 °F

Frequently asked questions

How warm is Baoshan in September?

In September the average high in Baoshan is 27 °C (81 °F) and the average low is 21 °C (70 °F).

Does it rain a lot in Baoshan in September?

On average about 129 mm (5.1 in) of precipitation falls in September; it ranks 4th of the 12 months.

Is September the warmest month in Baoshan?

No. The warmest month in Baoshan is July, with an average high of 31 °C (88 °F). The coldest month is January, with an average low of 1 °C (33 °F).

How long is the day in Baoshan in September?

In the middle of September the day in Baoshan 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 Baoshan in September?

The average relative humidity in September is about 79%. Combined with warm days, it can feel muggy.

How cloudy is Baoshan in September?

On average about 63% 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.