Mount Isa weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Mount Isa in September. Check more long-term weather averages for Mount Isa in September before you book your next holiday to Queensland in 2025/2026.

  • 30°C maximum daytime temperature in September in Mount Isa30
    30°C max day temperature
  • 10 hours of sunshine per day
  • 2 days with some rainfall in September in Mount Isa2
    2 days with some rainfall
  • 14°C minimum night-time temperature in September in Mount Isa14
    14°C min night temperature
  • 12 hours of daylight per day in September in Mount Isa12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Mount IsaM
    Moderate heat & humidity
  • 13 mm monthly rainfall in September in Mount Isa13
    13 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Mount Isa10
    10 (Very High) UV index

More about Mount Isa

Mount Isa by month

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

Recommended for Queensland

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 Queensland (Mount Isa) 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 Mount Isa in September?

Daytime temperatures usually reach 30°C in Mount Isa in September with moderate heat and humidity, falling to 14°C at night.

How sunny is it in Mount Isa in September?

There are normally 10 hours of bright sunshine each day in Mount Isa in September - that's 83% of daylight hours.

Does it ever rain in Mount Isa in September?

There are usually 2 days with some rain in Mount Isa in September and the average monthly rainfall is 13mm.

Mount Isa September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:51 18:33
Monday, 15th September 2025 06:39 18:36
Tuesday, 30th September 2025 06:24 18:40

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^