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Weather in Nanjing for September 2025

Your guide to Nanjing weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Gale Warning - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Nanjing is slightly cooler than the historical average by -1.7 °C.

  • The forecast for the next days in Nanjing predicts a temperature of 26.4 °C, which is cooler than the historical average.

  • In general, the average temperature in Nanjing at the beginning of September is 32.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.6 °C by the end of September.

    • Rain 🌧️

  • Nanjing experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 172.7 mm.

    • More

  • Is September a good time to visit Nanjing? check out the best time to travel to Nanjing page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/22°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Nanjing Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
33°
2
Moderate or heavy rain with thunder
32°
3
Patchy rain possible
32°
4
Patchy rain possible
32°
5
Partly cloudy
34°
6
Patchy rain possible
33°
7
Partly cloudy
33°
8
Patchy rain possible
31°
9
Patchy rain possible
29°
10
Patchy rain possible
32°
11
Light rain shower
28°
12
Fog
28°
13
Light rain shower
27°
14
Light rain shower
31°
15
Light rain shower
31°
16
Weather Alert Patchy rain possible
36°
17
Weather Alert Patchy rain possible
31°
18
Patchy rain possible
25°
19
Patchy rain possible
22°
20
Patchy rain possible
19°
21
Partly cloudy
25°
22
Patchy rain possible
26°
23
Sunny
28°
24
Partly cloudy
24°
25
Patchy rain possible
22°
26
Patchy rain possible
25°
27
Sunny
28°
28
Sunny
29°
29
Sunny
29°
30
Light rain shower
29°

Temperatures trend during September in Nanjing

See the weather trend as well as the moving average line

September weather in Nanjing day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 33° /23° 0.6 mm 8
2 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 32° /24° 8.1 mm 7
3 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 0 mm 7
4 Sept. Patchy rain possible
Patchy rain possible
 32° /24° 0.2 mm 7
5 Sept. Partly cloudy
Partly cloudy
 34° /24° 0.7 mm 8
6 Sept. Patchy rain possible
Patchy rain possible
 33° /24° 7.1 mm 7
7 Sept. Partly cloudy
Partly cloudy
 33° /24° 0.6 mm 8
8 Sept. Patchy rain possible
Patchy rain possible
 31° /22° 11.2 mm 7
9 Sept. Patchy rain possible
Patchy rain possible
 29° /22° 5 mm 6
10 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 0 mm 7
11 Sept. Light rain shower
Light rain shower
 28° /22° 16.2 mm 7
12 Sept. Fog
Fog
 28° /22° 4.5 mm 7
13 Sept. Light rain shower
Light rain shower
 27° /23° 9.1 mm 6
14 Sept. Light rain shower
Light rain shower
 31° /24° 14.1 mm 7
15 Sept. Light rain shower
Light rain shower
 31° /22° 1.2 mm 7
16 Sept. Patchy rain possible
Patchy rain possible
 36° /25° 2.5 mm 2
17 Sept. Patchy rain possible
Patchy rain possible
 31° /23° 4.3 mm 1.6
18 Sept. Patchy rain possible
Patchy rain possible
 25° /20° 0.1 mm 0.7
19 Sept. Patchy rain possible
Patchy rain possible
 22° /19° 0.4 mm 0.6
20 Sept. Patchy rain possible
Patchy rain possible
 19° /18° 0.6 mm 0.2
21 Sept. Partly cloudy
Partly cloudy
 25° /19° 0 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
 26° /19° 0.4 mm 5
23 Sept. Sunny
Sunny
 28° /20° 0 mm 6
24 Sept. Partly cloudy
Partly cloudy
 24° /20° 0 mm 6
25 Sept. Patchy rain possible
Patchy rain possible
 22° /19° 3.6 mm 5
26 Sept. Patchy rain possible
Patchy rain possible
 25° /19° 0.5 mm 5
27 Sept. Sunny
Sunny
 28° /19° 0 mm 6
28 Sept. Sunny
Sunny
 29° /19° 0 mm 6
29 Sept. Sunny
Sunny
 29° /19° 0 mm 6
30 Sept. Light rain shower
Light rain shower
 29° /21° 3.7 mm 6
Next
Important Notice
Our weather forecast for Nanjing in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Nanjing forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
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Nanjing weather in September vs August vs October

Compare September weather in Nanjing with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures34°/25°30°/22°21°/15°
Rainfall90 mm173 mm67 mm
Wind13.6 km/h20.2 km/h16 km/h
Humidity74%78%71%
Rainy days12 days10 days10 days
Dry days19 days20 days21 days

Planning a trip to Nanjing? Discover the best time to visit

Nanjing in September - FAQ

What are the expected maximum and minimum temperatures in Nanjing during September?
During September, expect a variety of temperatures with highs around 30° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Nanjing during September?
Significant rainfall exceeding 172.7 mm is expected in Nanjing during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Nanjing during September?
The average wind speed in Nanjing during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Nanjing in September?

As you prepare for your trip to Nanjing in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Nanjing, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips
    • Insect Repellent: For destinations with mosquitos or other insects

September rainfall patterns in Nanjing

Explore the daily rainfall trends and prepare for Nanjings September weather 💧

UV exposure in Nanjing during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Nanjing?

Get accurate weather forecasts for Nanjing, located at latitude 32.062 and longitude 118.778. Stay updated with localized weather information tailored for Nanjing.

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