Verdict: Good month
Shanghai Weather in September
September runs warm in Shanghai, with daily highs around 28°C (82°F) and nights near 22°C (72°F). Expect showers on roughly 14 days of the month — rarely trip-ruining, worth planning around. Overall, September is a solid month to visit Shanghai.
Average high
28°C / 82°F
Average low
22°C / 72°F
Rain days
~14
Precipitation
187 mm
What to pack for Shanghai in September
- Summer clothes, plus one light layer for air-con and evenings
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 14 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Shanghai: Aug (33°C / 91°F) · Coolest: Jan (10°C / 50°F) · Wettest: Jun (~18 rain days)
10°
2°
Jan
11°
3°
Feb
16°
7°
Mar
20°
11°
Apr
25°
16°
May
29°
21°
Jun
32°
25°
Jul
33°
26°
Aug
28°
22°
Sep
23°
16°
Oct
18°
11°
Nov
11°
3°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)