Month-by-month travel weather

Shanghai September weather

Shanghai, China · September

Still hot at the start, more comfortable toward the end

September in Shanghai moves from late summer into early autumn, with early-month weather still hot and humid and late-month days becoming more comfortable.

Daytime highs of 28-32°C with lingering humidity can feel heavy, and occasional typhoon influences bring bursts of wind and rain.

September averages at a glance

Average low

around 23-25°C

Average high

around 28-32°C

Average rainfall

around 120-170 mm

Rainy days

about 7-11 days (including typhoon-related showers)

What to wear in September in Shanghai

Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.

  • Early September still calls for full summer outfits: short sleeves, sleeveless tops, and thin dresses.
  • Toward late September, a light shirt or cardigan can be useful for cooler mornings and evenings.
  • Quick-dry, breathable fabrics remain preferable as humidity stays relatively high.

Travel tips for visiting Shanghai in September

  • Short, intense showers and gusty winds are possible during typhoon season—light rain gear and water-friendly shoes are practical.
  • For outdoor sightseeing, late September is noticeably more comfortable than early September.
  • Keep hydrated and be mindful of salty food intake, which combined with heat can make you feel bloated and tired.

September weather in Shanghai — FAQ

Q. Is September a good month to visit Shanghai?

A. Yes, especially in the second half of the month when heat and humidity ease and evenings become more pleasant.

Q. Could typhoons disrupt my trip?

A. Indirect typhoon effects can cause heavy rain and flight delays, so having a small buffer in your schedule is wise.

Q. Can I pack only summer clothes?

A. For early September, yes, but for late September add a light outer layer for nights and strong indoor AC.

Shanghai September weather — averages & travel outfits | CityWeather | CityWeather