WanderWhen

Shanghai weather in September

September is a good month to visit Shanghai. Expect highs around 28°C, lows near 22°C, and about 13.4 days with rain.

7.0 · Goodtravel score for September
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg high
28°C
Avg low
22°C
Rainfall
177 mm
Rain days
13.4
Sunshine
7.9 h/day
Daylight
12.2 h

What to pack for Shanghai in September

  • t-shirts and light layers
  • a light jacket for evenings
  • a compact umbrella or rain shell — rain is frequent
  • expect humid, sticky conditions

Humidity averages 81%; max daily wind around 18 km/h.

How September compares

January: 4.3/10 JFebruary: 4.8/10 FMarch: 7.3/10 MApril: 8.9/10 AMay: 8.7/10 MJune: 6.0/10 JJuly: 3.0/10 JAugust: 3.7/10 ASeptember: 7.0/10 SOctober: 9.3/10 ONovember: 8.8/10 NDecember: 5.6/10 D

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

Shanghai in September: the details

In September, Shanghai sees average daytime highs of 28°C (82°F) and overnight lows of 22°C (71°F). Rainfall totals roughly 177 mm across 13.4 rainy days, and the sun shines about 7.9 hours per day with 12.2 hours of daylight mid-month. Relative humidity averages 81%.

These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Shanghai, China (31.22, 121.46) — see our methodology. Actual conditions vary year to year.

Where should you go next month?

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