WanderWhen

Nanjing weather in September

September is a good month to visit Nanjing. Expect highs around 28°C, lows near 21°C, and about 9 days with rain.

8.0 · Goodtravel score for September
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg high
28°C
Avg low
21°C
Rainfall
97 mm
Rain days
9
Sunshine
8.7 h/day
Daylight
12.2 h

What to pack for Nanjing in September

  • light, breathable clothing
  • sun protection (hat, SPF 50)
  • a compact umbrella or rain shell — rain is frequent

Humidity averages 78%; max daily wind around 15 km/h.

How September compares

January: 3.6/10 JFebruary: 4.6/10 FMarch: 8.6/10 MApril: 9.1/10 AMay: 9.3/10 MJune: 6.1/10 JJuly: 3.1/10 JAugust: 3.9/10 ASeptember: 8.0/10 SOctober: 9.5/10 ONovember: 9.4/10 NDecember: 5.3/10 D

Best months in Nanjing: April–May & October–November. See the full best time to visit Nanjing guide.

Nanjing in September: the details

In September, Nanjing sees average daytime highs of 28°C (83°F) and overnight lows of 21°C (70°F). Rainfall totals roughly 97 mm across 9 rainy days, and the sun shines about 8.7 hours per day with 12.2 hours of daylight mid-month. Relative humidity averages 78%.

These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Nanjing, China (32.06, 118.78) — see our methodology. Actual conditions vary year to year.

Where should you go next month?

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