Cape Town weather in September 2021

Get the latest coronavirus (Covid-19) updates for South Africa with current travel advice and statistics on new cases per 100,000 and vaccine.

  • 18°C maximum daytime temperature in September in Cape Town18
    18°C max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in September in Cape Town11
    11 days with some rainfall
  • 9°C minimum night-time temperature in September in Cape Town9
    9°C min night temperature
  • 12 hours of daylight per day in September in Cape Town12
    12 hours of daylight per day
  • No heat & humidity in September in Cape Town0
    No heat & humidity
  • 96 mm monthly rainfall in September in Cape Town96
    96 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Cape Town6
    6 (High) UV index
  • 15°C sea temperature in September in Cape Town15
    15°C sea temperature

Recommended for South Africa

  • Top deals & discounts
  • Cape Town weather overview
  • Cape Town climate averages by month
  • More destinations
  • Best time to go to Cape Town
  • Cape Town 5-day weather forecast

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The September weather guide for Cape Town, South Africa 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.

  • Find hotel deals & special offers for popular destinations
  • Filter hotel deals by price, board basis, star rating & more
  • Choose from over 400,000 hotels worldwide

How hot is it in Cape Town in September?

Daytime temperatures usually reach 18°C in Cape Town in September, falling to 9°C at night.

How sunny is it in Cape Town in September?

There are normally 7 hours of bright sunshine each day in Cape Town in September - that's 62% of daylight hours.

How warm is the sea around Cape Town in September?

The average sea temperature around Cape Town in September is 15°C.

Does it rain in Cape Town in September?

There are usually 11 days with some rain in Cape Town in September and the average monthly rainfall is 96mm.

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

Back to top

Cape Town sunrise & sunset times for September 2021

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st September 2021 07:04 18:28
Wednesday, 15th September 2021 06:45 18:38
Thursday, 30th September 2021 06:25 18:48
  • Browse low fares on Qatar Airways flights worldwide
  • Depart from regional airports across the UK
  • Book flights to Asia, Africa, Europe & Americas

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.