Adelaide weather in September 2025

Expect 18°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Adelaide in September. Check more long-term weather averages for Adelaide in September before you book your next holiday to South Australia in 2025/2026.

  • 18°C maximum daytime temperature in September in Adelaide18
    18°C max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in September in Adelaide8
    8 days with some rainfall
  • 9°C minimum night-time temperature in September in Adelaide9
    9°C min night temperature
  • 12 hours of daylight per day in September in Adelaide12
    12 hours of daylight per day
  • No heat & humidity in September in Adelaide0
    No heat & humidity
  • 53 mm monthly rainfall in September in Adelaide53
    53 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Adelaide5
    5 (Moderate) UV index
  • 14°C sea temperature in September in Adelaide14
    14°C sea temperature

More about Adelaide

Adelaide by month

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

Recommended for South Australia

Travelbag: Latest holiday sale offers worldwide

  • Explore latest sale offers on holidays in 2024/2025
  • Filter deals by continent, star rating & holiday type
  • Including Dubai, Caribbean, North America, Asia & Pacific
Go to Travelbag deal >>

View all Travelbag offers

TravelbagHoliday deal finder

The September weather guide for South Australia (Adelaide) 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.

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

Back to top

More about Australia

How hot is it in Adelaide in September?

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

How sunny is it in Adelaide in September?

There are normally 7 hours of bright sunshine each day in Adelaide in September - that's 59% of daylight hours.

How warm is the sea around Adelaide in September?

The average sea temperature around Adelaide in September is 14°C.

Does it rain in Adelaide in September?

There are usually 8 days with some rain in Adelaide in September and the average monthly rainfall is 53mm.

Adelaide September sunrise & sunset times

Browse the sunrise and sunset times for Adelaide in September 2025. Select a month to view Adelaide sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:35 17:57
Monday, 15th September 2025 06:15 18:07
Tuesday, 30th September 2025 05:54 18:18

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^