Katoomba weather in September 2025

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

  • 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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More about Australia

How hot is it in Katoomba in September?

Daytime temperatures usually reach 18°C in Katoomba in September, falling to 5°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 60% of daylight hours.

Does it rain in Katoomba in September?

There are usually 11 days with some rain in Katoomba in September and the average monthly rainfall is 57mm.

Katoomba September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:17 17:41
Monday, 15th September 2025 05:58 17:50
Tuesday, 30th September 2025 05:38 18:01

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