Shanghai weather

Our guide to the weather in Shanghai during September

28

Average high

6

UV Index

165mm

Monthly rainfall

77%

Humidity

We've looked at the most up-to-date weather data for Shanghai, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Shanghai weather in September.

How warm is it in Shanghai during September?

The temperature reaches around 28℃ during the daytime in September, falling away to 22℃ at night. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in Shanghai during September?

On average, there will be 8 rainy days during the month, amounting to 165.3mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. Due to the high temperature and humidity, you might expect lots of thunderstorms, however they're actually fairly infrequent at this time of year. On average, September will see just 2 days that produce a storm.

Is it windy in Shanghai during September?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. The high humidity and warm temperature will make the breeze feel warm, so any cooling effect will be limted.

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Weather in Shanghai

Our month-by-month guide to the weather and climate in Shanghai

9.2

Shanghai weather in

January
10.7

Shanghai weather in

February
14.8

Shanghai weather in

March
20.0

Shanghai weather in

April
25.3

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May
27.9

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June
31.5

Shanghai weather in

July
32.1

Shanghai weather in

August
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Shanghai weather in

September
23.3

Shanghai weather in

October
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Shanghai weather in

November
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December