September is one of the cooler months of the year in Andamooka, with average highs near 25.1°C and lows around 9.4°C (mean 17.3°C). It is about average for rainfall, averaging 11 mm of rainfall and 45% relative humidity across the period.
September is one of the cooler months of the year in Andamooka. Across 45 years of records, the warmest September in Andamooka was 2013 — when the month averaged 20.6°C — while the coldest was 1984 at 14.3°C. Typical September days reach 25.1°C with nights near 9.4°C. The long-term trend is warming, about 0.2°C per decade.
September is about average for rainfall in Andamooka, averaging 11 mm of rainfall. The wettest September on record was 2005 with 36 mm, while the driest was 2007 at 0 mm.
Relative humidity in Andamooka during September averages 45%. The most humid September was 2010 at 63%, and the least humid was 2007 at 33%.
September receives about 5.9 kWh/m²/day of solar energy in Andamooka. The sunniest September was 1989 at 6.6 kWh/m²/day, and the cloudiest was 1997 at 5.3.
Average wind speed in Andamooka during September is 3.6 m/s. The windiest September was 1996 at 4.4 m/s, while the calmest was 2004 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.5°C | 17.1°C | 17.9°C | 17.2°C | 17.6°C | +1.1°C |
| Avg High | 24.3°C | 24.8°C | 25.9°C | 25.1°C | 25.5°C | +1.2°C |
| Avg Low | 8.8°C | 9.3°C | 9.8°C | 9.3°C | 9.7°C | +0.9°C |
| Avg Rain | 8 mm | 13 mm | 14 mm | 10 mm | 10 mm | +2 mm |
September temperatures in Andamooka have risen by about 1°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 3.2°C (1985) to a record high of 37.8°C (2012).
Rainfall in September is about average for rainfall, averaging 11 mm, with a wettest year of 36 mm.
A good time to visit Andamooka
September is a good time to visit Andamooka, with days averaging 25.1°C and nights around 9.4°C (mean 17.3°C, cooler than Andamooka's yearly average) and low rainfall. October and April are marginally more temperate, but September still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 25.5°C | 17.6°C | 9.7°C | 34.4°C | 4.9°C | 10 mm | 46% | 3.4 m/s | 5.8 |
| 2024 | 25.0°C | 17.2°C | 9.3°C | 34.1°C | 4.7°C | 6 mm | 39% | 3.5 m/s | 5.8 |
| 2023 | 27.8°C | 19.3°C | 10.8°C | 36.3°C | 3.9°C | 3 mm | 38% | 3 m/s | 6.2 |
| 2022 | 23.7°C | 16.3°C | 8.9°C | 30.5°C | 4.3°C | 23 mm | 54% | 3.4 m/s | 5.6 |
| 2021 | 25.0°C | 16.8°C | 8.6°C | 31.8°C | 4.2°C | 6 mm | 44% | 3.5 m/s | 6 |
| 2020 | 26.0°C | 18.5°C | 10.9°C | 33.7°C | 3.8°C | 13 mm | 45% | 3.8 m/s | 5.8 |
| 2019 | 26.8°C | 18.1°C | 9.4°C | 33.8°C | 4.7°C | 8 mm | 36% | 3.2 m/s | 6.2 |
| 2018 | 24.0°C | 16.0°C | 8.0°C | 31.7°C | 3.7°C | 3 mm | 37% | 3.2 m/s | 6 |
| 2017 | 25.1°C | 17.2°C | 9.3°C | 35.8°C | 4.6°C | 14 mm | 42% | 3.6 m/s | 5.6 |
| 2016 | 22.2°C | 15.0°C | 7.8°C | 31.2°C | 3.9°C | 24 mm | 52% | 3.8 m/s | 5.4 |
| 2015 | 24.2°C | 16.3°C | 8.4°C | 31.7°C | 5.1°C | 5 mm | 46% | 3.2 m/s | 6.1 |
| 2014 | 25.8°C | 17.9°C | 10.0°C | 35.3°C | 5.2°C | 5 mm | 44% | 3.5 m/s | 6 |
| 2013 🔥 | 29.2°C | 20.6°C | 12.0°C | 36.1°C | 7.0°C | 5 mm | 41% | 3.5 m/s | 5.9 |
| 2012 | 26.3°C | 17.9°C | 9.6°C | 37.8°C | 4.8°C | 0 mm | 37% | 3.7 m/s | 6 |
| 2011 | 25.7°C | 17.6°C | 9.5°C | 36.0°C | 4.7°C | 6 mm | 40% | 3.8 m/s | 6.1 |
| 2010 | 21.9°C | 15.3°C | 8.7°C | 29.1°C | 4.7°C | 34 mm | 63% | 3.5 m/s | 5.4 |
| 2009 | 25.7°C | 18.1°C | 10.4°C | 35.3°C | 5.9°C | 17 mm | 44% | 4.3 m/s | 5.7 |
| 2008 | 26.1°C | 17.8°C | 9.5°C | 37.0°C | 4.8°C | 3 mm | 38% | 3.4 m/s | 6.1 |
| 2007 | 26.7°C | 18.3°C | 9.9°C | 37.1°C | 5.0°C | 0 mm | 33% | 3.7 m/s | 6.2 |
| 2006 | 26.8°C | 18.6°C | 10.3°C | 32.2°C | 6.3°C | 0 mm | 36% | 3.5 m/s | 6.2 |
| 2005 🌧️ | 24.5°C | 17.0°C | 9.4°C | 34.1°C | 4.3°C | 36 mm | 50% | 3.7 m/s | 5.4 |
| 2004 | 24.1°C | 16.4°C | 8.8°C | 35.1°C | 3.2°C | 35 mm | 48% | 2.9 m/s | 5.6 |
| 2003 | 26.2°C | 17.8°C | 9.3°C | 34.2°C | 3.3°C | 14 mm | 45% | 3.6 m/s | 5.9 |
| 2002 | 25.6°C | 17.3°C | 9.0°C | 33.5°C | 4.9°C | 4 mm | 42% | 4 m/s | 6 |
| 2001 | 25.3°C | 17.9°C | 10.5°C | 35.4°C | 5.2°C | 21 mm | 49% | 3.7 m/s | 5.4 |
| 2000 | 27.9°C | 19.5°C | 11.1°C | 37.2°C | 5.9°C | 10 mm | 44% | 3.6 m/s | 5.9 |
| 1999 | 27.1°C | 19.3°C | 11.5°C | 36.4°C | 5.6°C | 7 mm | 41% | 3.9 m/s | 5.6 |
| 1998 | 25.6°C | 18.0°C | 10.4°C | 37.4°C | 5.4°C | 12 mm | 49% | 3.6 m/s | 5.7 |
| 1997 | 23.8°C | 16.8°C | 9.8°C | 27.9°C | 6.3°C | 28 mm | 54% | 3.2 m/s | 5.3 |
| 1996 | 24.4°C | 16.9°C | 9.3°C | 33.9°C | 4.8°C | 31 mm | 48% | 4.4 m/s | 5.6 |
| 1995 | 24.9°C | 17.1°C | 9.3°C | 30.8°C | 3.3°C | 6 mm | 43% | 3.5 m/s | 5.8 |
| 1994 | 24.2°C | 16.0°C | 7.9°C | 30.4°C | 4.0°C | 3 mm | 44% | 3.4 m/s | 6.4 |
| 1993 | 24.4°C | 16.8°C | 9.3°C | 34.5°C | 5.0°C | 6 mm | 45% | 3.6 m/s | 6 |
| 1992 | 21.8°C | 14.7°C | 7.5°C | 26.9°C | 3.8°C | 32 mm | 54% | 3.6 m/s | 5.7 |
| 1991 | 26.0°C | 17.9°C | 9.7°C | 34.1°C | 5.2°C | 1 mm | 40% | 3.9 m/s | 6.3 |
| 1990 | 25.6°C | 17.2°C | 8.7°C | 37.1°C | 4.1°C | 4 mm | 43% | 3.6 m/s | 6.5 |
| 1989 | 23.7°C | 15.6°C | 7.5°C | 33.0°C | 3.9°C | 1 mm | 53% | 3.5 m/s | 6.6 |
| 1988 | 25.7°C | 17.7°C | 9.8°C | 33.8°C | 4.6°C | 5 mm | 38% | 3.8 m/s | 6 |
| 1987 | 25.4°C | 17.5°C | 9.6°C | 35.0°C | 4.7°C | 5 mm | 43% | 3.3 m/s | 5.8 |
| 1986 | 23.4°C | 15.9°C | 8.4°C | 31.8°C | 3.7°C | 1 mm | 50% | 3.4 m/s | 6.1 |
| 1985 | 22.1°C | 14.5°C | 7.0°C | 28.8°C | 3.2°C | 0 mm | 47% | 3.6 m/s | 6.5 |
| 1984 ❄️ | 21.7°C | 14.3°C | 6.9°C | 27.0°C | 3.3°C | 29 mm | 52% | 3.8 m/s | 6 |
| 1983 | 26.2°C | 18.1°C | 10.1°C | 33.7°C | 7.1°C | 7 mm | 43% | 3.9 m/s | — |
| 1982 | 24.0°C | 16.6°C | 9.2°C | 32.4°C | 3.8°C | 11 mm | 43% | 3.4 m/s | — |
| 1981 | 26.9°C | 18.6°C | 10.3°C | 36.6°C | 3.6°C | 16 mm | 41% | 3.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 25.1°C with lows near 9.4°C (mean 17.3°C), based on 45 years of NASA POWER data.
September averages 11 mm of rainfall in Andamooka, about average for rainfall. The wettest on record was 36 mm in 2005.
The hottest September reached 37.8°C in 2012. The coldest dipped to 3.2°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1°C. Daytime highs moved from 24.2°C to 25.4°C and overnight lows from 8.7°C to 9.5°C over the same span.
September is one of the cooler months of the year in Andamooka and about average for rainfall, so plan for around 25.1°C daytime highs and 9.4°C at night.
Not quite — September is the 5th coolest month in Andamooka, averaging 17.3°C.
For September in Andamooka, pack light layers you can adjust through the day, with typical highs of 25.1°C and lows of 9.4°C.
Relative humidity in September averages 45% — relatively dry.
Average wind speed in September is 3.6 m/s. The windiest September on record averaged 4.4 m/s (1996).
The wettest September on record was 2005 with 36 mm. On average, September sees 11 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Andamooka behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
