Nanjing Weather

Nanjing has a humid subtropical climate with plenty of rainfall. The four seasons are distinct in Nanjing, with hot summers and cold winters. The spring is warm and humid, and the rainy season falls on June and July. In summer, Nanjing becomes one of the three "furnace cities" along the Yangtze River, together with Wuhan and Chongqing. Autumn is a short but the most pleasant season. Though considered a southern city in China, Nanjing is cold in winter with occasional snow.

The average annual temperature is 16 °C (61 °F). The hottest month is July, with an average high of 32 °C (90 °F) and an average low of 25 °C (77 °F). The coldest month is January, with an average high of 7 °C (45 °F) and an average low of -1 °C (30 °F). The weather is overall humid in Nanjing, with about 117 rainy days yearly, and an annual average precipitation of 1106 millimeters (43.5 inches). The best time to visit Nanjing is during autumn, when the weather is cool and dry. Osmanthus flowers are in full blossom in autumn, leaving sweet scents flowing all over. Have a look at our Nanjing Tours and choose your time of travel.


Spring is from March to May. The weather warms up, and it is humid, with changing temperatures. It may warm up for a few days and turn cold later. Wearing sweaters and coats are enough to cope with the weather, but also prepare long-sleeve shirts for the day when it gets warmer.


Summer is from June to September, with extremely hot and humid weather. It is one of the "three furnaces" along the Yangtze River Delta, with Wuhan and Chongqing. Rainfalls concentrate in June and July. The temperature easily reaches above 34 °C (93 °F). The highest temperature is in July, hitting above 40 °C (104 °F). Prepare summer clothes, umbrella and sun protection.


Autumn is from October to November. It is the best time of the year for traveling in Nanjing, with pleasant cool and dry weather. There are sharp and frequent intervals of temperature changes. Shirt, thin sweater and coat are enough to cope with the weather.


Winter is from December to February. It is cold with heavy humidity in Nanjing, with occasional snow. January is the coldest month with the low temperature dropping to -7 °C (19 °F). The average low and high temperature is respectively at 0 °C (32 °F) and 9 °C (49 °F) in December, -2 °C (29 °F) and 7 °C (44 °F) in January, and 0 °C (32 °F) and 8 °C (47 °F) in February. Down jackets or cotton-padded coat, sweater and thick jeans are suitable to cope with the weather. Read where to travel in winter?

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Nanjing Climate Information by Month

Nanjing Average Climate by Month

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High (ºC) 7 9 14 20 26 30 32 33 28 23 17 10
Low (ºC) -1 0 5 11 17 21 25 25 20 13 7 0
Rain (mm) 33.02 50.8 68.58 88.9 93.98 139.7 177.8 119.38 86.36 45.72 48.26 30.48
High (ºF) 44 47 57 68 78 85 89 90 82 72 61 49
Low (ºF) 29 32 40 51 61 69 76 76 67 55 43 32
Rain (in) 1.3 2 2.7 3.5 3.7 5.5 7 4.7 3.4 1.8 1.9 1.2

Nanjing Average Monthly Temperatures

Nanjing Average Monthly Temperatures

Nanjing Average Monthly Precipitation (inches)

Nanjing Average Monthly Precipitation

Questions and Answers About Nanjing Weather

Billie 2013-10-13
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I will be in Nanjing from 18th of November to the 28th of December, will it snow?

Dear Billie,

Weather in November is colder and colder but no snow. Please take some coats or jackets, caps or gloves if you needed. The temperature for your reference is 7 °C (45 °F) to 16 °C (61 °F).

Christy Luo replied on 2013-10-14
Harris 2012-07-16
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I will be in training in Nanjing on the 10-15 September 2012. Referring here, I will be in Summer, temperature around 30 degree Celsius. Is there any possibility that the weather will be more cold than this and I need to prepare thicker clothes?
hi Harris, the chance of the temperature goes down to cooler is slim during September except there is typhoon . A thin coat protect you from sun is suggested. Enjoy your stay in Nanjing. Sammi Dai replied on 2012-07-17
Maria 2011-04-19
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Are there any thunderstorms in Nanjing, and if, during what month?
Hi Maria, Generally speaking, from the end of June to the early of July, there are some thunderstorms. If you would like to travel to Nanjing, you'd better avoid this period. If you are interested in travel to China, please feel free to let me know your need, I can arrange a tour based on your enquiry. My e-mail address is Lussie Lu replied on 2011-04-20
Dr. Pongsiri Prathnadi 2011-01-14
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What is the projection of weather in Nanjing on 20-23 January 2011
At present, I can only see the the temperature on Jan.18th, it is from -3-1C, it will snow. guest replied on 2011-01-15
Marijane Krohn 2010-12-04
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Is air pollution a problem in Nanjing?
I suppose the answer to this question depends on your standard of comparison. All Chinese cities of pollution problems so that is the easiest answer to your question. I have lived in Beijing (1998-2004) and Nanjing is considerably cleaner than that city. I've lived here for 7 years and find it to be no dirtier than other major Chinese cities and cleaner in many respects. guest replied on 2011-03-18
I studied in Nanjing from 2000 to 2004. When I was there, the city was very dirty. Rivers were seriously polluted. The air was not clean that you could rarely see a blue sky. The polluation is very obvious even today. Ruru Zhou replied on 2010-12-07
Hi everyone, At this moment I'm living in Nanjing and we already had 3 weeks with blue sky. It's amazing how beautiful it's been and about the pollution... I think it's minimal!!! guest replied on 2012-08-07
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I updated this article on May 24, 2012
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