Hong Kong weather in September 2021

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  • 30°C maximum daytime temperature in September in Hong Kong30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in September in Hong Kong14
    14 days with some rainfall
  • 25°C minimum night-time temperature in September in Hong Kong25
    25°C min night temperature
  • 12 hours of daylight per day in September in Hong Kong12
    12 hours of daylight per day
  • High heat & humidity in September in Hong KongH
    High heat & humidity
  • 253 mm monthly rainfall in September in Hong Kong253
    253 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Hong Kong11
    11 (Extreme) UV index
  • 28°C sea temperature in September in Hong Kong28
    28°C sea temperature
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The September weather guide for Hong Kong shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

How hot is it in Hong Kong in September?

Daytime temperatures usually reach 30°C in Hong Kong in September with high heat and humidity, falling to 25°C at night.

How sunny is it in Hong Kong in September?

There are normally 6 hours of bright sunshine each day in Hong Kong in September - that's 51% of daylight hours.

How warm is the sea around Hong Kong in September?

The average sea temperature around Hong Kong in September is 28°C.

Does it rain in Hong Kong in September?

There are usually 14 days with some rain in Hong Kong in September and the average monthly rainfall is 253mm.

What is the chance of a typhoon in Hong Kong in September?

On average 2.9 days in September in Hong Kong are likely to be affected by the passage of one or more tropical storms.

Metric (°C / mm)  |  Imperial (°F / inches)

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Hong Kong sunrise & sunset times for September 2021

Browse the sunrise and sunset times for Hong Kong in September 2021. Select a month to view Hong Kong sunrise & sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st September 2021 06:06 18:40
Wednesday, 15th September 2021 06:10 18:27
Thursday, 30th September 2021 06:14 18:12
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