Mount Gambier weather in September 2025

Expect daytime maximum temperatures of 59°F in Mount Gambier, South Australia in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 2.9 inches of rainfall in the month.

  • 59°F maximum daytime temperature in September in Mount Gambier59
    59°F max day temperature
  • 5 hours of sunshine per day
  • 10 days with some rainfall in September in Mount Gambier10
    10 days with some rainfall
  • 45°F minimum night-time temperature in September in Mount Gambier45
    45°F min night temperature
  • 12 hours of daylight per day in September in Mount Gambier12
    12 hours of daylight per day
  • No heat & humidity in September in Mount Gambier0
    No heat & humidity
  • 2.9 inches monthly rainfall in September in Mount Gambier2.9
    2.9 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Mount Gambier5
    5 (Moderate) UV index

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The September weather guide for South Australia (Mount Gambier) 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)  |  Imperial (°F)

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How warm is it in Mount Gambier in September?

Daytime temperatures usually reach 59°F in Mount Gambier in September, falling to 45°F at night.

How sunny is it in Mount Gambier in September?

There are normally 5 hours of bright sunshine each day in Mount Gambier in September - that's 46% of daylight hours.

Does it rain in Mount Gambier in September?

There are usually 10 days with some rain in Mount Gambier in September and the average monthly rainfall is 2.9 inches.

Mount Gambier September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:29 17:46
Monday, 15th September 2025 06:08 17:57
Tuesday, 30th September 2025 05:44 18:10

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