Nanjing weather in October
In October, Nanjing has an average high of 23 °C74 °F and an average low of 12 °C54 °F, with about 55 mm2.1 in of precipitation. It is the 6th warmest month of the year and ranks 10th for precipitation.
How October compares with other months
Compared with September, October is 5.7 °C10.3 °F cooler on average and drier by 39 mm1.5 in. Compared with November, October is 6.6 °C11.9 °F warmer on average. Daylight lasts about 11.3 hours around the middle of the month. Average relative humidity is 73% and the average cloud amount 57%.
Is October a good time to visit Nanjing?
Yes — October is one of the most comfortable months to visit Nanjing 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 October
For Nanjing in October, pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
October in nearby places
Other months in Nanjing
- January7 °C44 °F / −3 °C27 °F
- February10 °C50 °F / 0 °C31 °F
- March16 °C60 °F / 4 °C39 °F
- April22 °C72 °F / 10 °C50 °F
- May27 °C81 °F / 16 °C60 °F
- June31 °C87 °F / 20 °C69 °F
- July32 °C90 °F / 25 °C76 °F
- August32 °C89 °F / 24 °C75 °F
- September28 °C83 °F / 19 °C66 °F
- October23 °C74 °F / 12 °C54 °F
- November17 °C62 °F / 6 °C42 °F
- December9 °C48 °F / −1 °C30 °F
Frequently asked questions
How warm is Nanjing in October?
In October the average high in Nanjing is 23 °C (74 °F) and the average low is 12 °C (54 °F).
Does it rain a lot in Nanjing in October?
On average about 55 mm (2.1 in) of precipitation falls in October; it ranks 10th of the 12 months.
Is October the warmest month in Nanjing?
No. The warmest month in Nanjing is July, with an average high of 32 °C (90 °F). The coldest month is January, with an average low of -3 °C (27 °F).
How long is the day in Nanjing in October?
In the middle of October the day in Nanjing lasts about 11.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Nanjing in October?
The average relative humidity in October is about 73%. This is a long-term average for the whole day.
How cloudy is Nanjing in October?
On average about 57% of the sky is covered by cloud in October. 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.