Katoomba weather in September 2026

Expect daytime maximum temperatures of 18°C in Katoomba, New South Wales in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 57 mm of rainfall in the month.

  • 18°C maximum daytime temperature in September in Katoomba18
    18°C max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in September in Katoomba11
    11 days with some rainfall
  • 5°C minimum night-time temperature in September in Katoomba5
    5°C min night temperature
  • 12 hours of daylight per day in September in Katoomba12
    12 hours of daylight per day
  • No heat & humidity in September in Katoomba0
    No heat & humidity
  • 57 mm monthly rainfall in September in Katoomba57
    57 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Katoomba6
    6 (High) UV index

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The September weather guide for New South Wales (Katoomba) 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)

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How hot is it in Katoomba in September?

Daytime temperatures usually reach 20°C in Katoomba in September, falling to 11°C at night.

How sunny is it in Katoomba in September?

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

How warm is the sea around Katoomba in September?

The average sea temperature around Katoomba in September is 18°C.

Does it rain in Katoomba in September?

There are usually 10 days with some rain in Katoomba in September and the average monthly rainfall is 62mm.

Katoomba September sunrise & sunset times

Browse the sunrise and sunset times for Katoomba in September 2026. Select a month to view Katoomba sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:18 17:41
Tuesday, 15th September 2026 05:59 17:50
Wednesday, 30th September 2026 05:38 18:00

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