September is one of the cooler months of the year in Meningie, with average highs near 18.3°C and lows around 8.7°C (mean 13.5°C). It is about average for rainfall, averaging 43 mm of rainfall and 71% relative humidity across the period.
September is one of the cooler months of the year in Meningie. Across 45 years of records, the warmest September in Meningie was 2023 — when the month averaged 16°C — while the coldest was 1992 at 11°C. Typical September days reach 18.3°C with nights near 8.7°C. The long-term trend is warming, about 0.3°C per decade.
September is about average for rainfall in Meningie, averaging 43 mm of rainfall. The wettest September on record was 2016 with 124 mm, while the driest was 2018 at 8 mm.
Relative humidity in Meningie during September averages 71%. The most humid September was 2010 at 79%, and the least humid was 2023 at 61%.
September receives about 4.6 kWh/m²/day of solar energy in Meningie. The sunniest September was 2023 at 5.3 kWh/m²/day, and the cloudiest were 2010 and 2016 at 3.9.
Average wind speed in Meningie during September is 3.8 m/s. The windiest September was 1996 at 4.8 m/s, while the calmest was 1997 at 3.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.0°C | 13.1°C | 13.7°C | 13.6°C | 14.2°C | +1.2°C |
| Avg High | 17.7°C | 17.7°C | 18.5°C | 18.4°C | 19.1°C | +1.4°C |
| Avg Low | 8.3°C | 8.4°C | 8.9°C | 8.8°C | 9.2°C | +0.9°C |
| Avg Rain | 38 mm | 55 mm | 45 mm | 39 mm | 31 mm | -6 mm |
September temperatures in Meningie have risen by about 1.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 2°C (1995) to a record high of 31°C (1987).
Rainfall in September is about average for rainfall, averaging 43 mm, with a wettest year of 124 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.4°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A quieter season to visit Meningie
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Meningie. That said, September — with days averaging 18.3°C and nights around 8.7°C (mean 13.5°C) and moderate rainfall (43 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 18.9°C | 14.3°C | 9.7°C | 26.9°C | 3.9°C | 20 mm | 68% | 4 m/s | 4.7 |
| 2024 | 19.1°C | 14.1°C | 9.1°C | 26.2°C | 4.3°C | 19 mm | 67% | 4 m/s | 4.7 |
| 2023 🔥 | 22.1°C | 16.0°C | 9.9°C | 31.0°C | 6.2°C | 10 mm | 61% | 3.4 m/s | 5.3 |
| 2022 | 17.0°C | 12.8°C | 8.6°C | 22.2°C | 4.5°C | 62 mm | 77% | 3.6 m/s | 4.2 |
| 2021 | 18.7°C | 13.8°C | 8.9°C | 28.6°C | 4.3°C | 32 mm | 69% | 4 m/s | 4.8 |
| 2020 | 19.0°C | 14.1°C | 9.2°C | 25.8°C | 4.4°C | 47 mm | 70% | 4.1 m/s | 4.5 |
| 2019 | 19.2°C | 13.8°C | 8.4°C | 27.7°C | 3.8°C | 10 mm | 64% | 3.5 m/s | 4.7 |
| 2018 | 18.6°C | 13.2°C | 7.7°C | 25.9°C | 3.4°C | 8 mm | 63% | 3.5 m/s | 5.1 |
| 2017 | 19.0°C | 14.2°C | 9.5°C | 28.7°C | 4.0°C | 11 mm | 65% | 4.6 m/s | 4.7 |
| 2016 🌧️ | 16.2°C | 12.4°C | 8.5°C | 22.9°C | 5.0°C | 124 mm | 77% | 3.8 m/s | 3.9 |
| 2015 | 19.0°C | 13.6°C | 8.3°C | 27.6°C | 4.8°C | 19 mm | 67% | 3.3 m/s | 4.8 |
| 2014 | 19.3°C | 14.2°C | 9.0°C | 28.4°C | 5.4°C | 23 mm | 68% | 3.6 m/s | 4.9 |
| 2013 | 19.8°C | 15.3°C | 10.8°C | 25.8°C | 7.0°C | 47 mm | 74% | 3.8 m/s | 4.3 |
| 2012 | 18.3°C | 13.5°C | 8.6°C | 25.8°C | 5.0°C | 26 mm | 70% | 3.9 m/s | 4.6 |
| 2011 | 19.2°C | 14.1°C | 9.0°C | 27.8°C | 5.1°C | 44 mm | 69% | 3.9 m/s | 4.8 |
| 2010 | 15.8°C | 12.1°C | 8.4°C | 19.8°C | 4.0°C | 75 mm | 79% | 3.3 m/s | 3.9 |
| 2009 | 18.6°C | 14.0°C | 9.3°C | 27.5°C | 5.5°C | 73 mm | 70% | 4 m/s | 4.3 |
| 2008 | 19.3°C | 13.8°C | 8.3°C | 30.2°C | 3.1°C | 23 mm | 68% | 3.8 m/s | 5.1 |
| 2007 | 19.5°C | 14.3°C | 9.0°C | 27.2°C | 3.1°C | 37 mm | 65% | 4.3 m/s | 5 |
| 2006 | 20.0°C | 14.4°C | 8.9°C | 29.3°C | 3.8°C | 28 mm | 63% | 3.9 m/s | 4.9 |
| 2005 | 18.1°C | 13.5°C | 8.8°C | 24.5°C | 5.3°C | 43 mm | 72% | 3.4 m/s | 4.6 |
| 2004 | 17.5°C | 13.0°C | 8.6°C | 27.5°C | 5.3°C | 47 mm | 75% | 3.2 m/s | 4.2 |
| 2003 | 16.8°C | 12.4°C | 8.0°C | 23.6°C | 3.0°C | 41 mm | 74% | 4.7 m/s | 4.7 |
| 2002 | 18.5°C | 13.7°C | 9.0°C | 27.6°C | 4.5°C | 35 mm | 65% | 4.4 m/s | 4.5 |
| 2001 | 18.7°C | 14.0°C | 9.3°C | 27.3°C | 5.0°C | 77 mm | 74% | 3.6 m/s | 4.2 |
| 2000 | 18.3°C | 14.0°C | 9.7°C | 27.8°C | 5.7°C | 50 mm | 75% | 4.2 m/s | 4.5 |
| 1999 | 20.1°C | 14.8°C | 9.5°C | 30.3°C | 4.9°C | 41 mm | 68% | 3.6 m/s | 4.7 |
| 1998 | 19.2°C | 14.1°C | 8.9°C | 26.9°C | 5.0°C | 52 mm | 72% | 3.6 m/s | 4.6 |
| 1997 | 17.8°C | 13.1°C | 8.3°C | 22.1°C | 5.1°C | 68 mm | 76% | 3.1 m/s | 4.5 |
| 1996 | 16.3°C | 12.4°C | 8.4°C | 25.9°C | 5.3°C | 80 mm | 72% | 4.8 m/s | 4.6 |
| 1995 | 18.1°C | 13.0°C | 8.0°C | 24.8°C | 2.0°C | 20 mm | 72% | 3.3 m/s | 4.6 |
| 1994 | 16.6°C | 12.4°C | 8.1°C | 23.1°C | 4.6°C | 25 mm | 70% | 3.6 m/s | 4.6 |
| 1993 | 18.3°C | 13.3°C | 8.3°C | 26.1°C | 3.8°C | 67 mm | 71% | 3.3 m/s | 4.6 |
| 1992 ❄️ | 14.6°C | 11.0°C | 7.3°C | 18.9°C | 4.9°C | 97 mm | 79% | 3.4 m/s | 4.1 |
| 1991 | 17.8°C | 13.0°C | 8.2°C | 24.1°C | 4.8°C | 59 mm | 75% | 4 m/s | 4.5 |
| 1990 | 18.6°C | 13.7°C | 8.8°C | 27.4°C | 4.7°C | 44 mm | 72% | 3.8 m/s | 4.9 |
| 1989 | 17.3°C | 12.8°C | 8.3°C | 25.0°C | 6.4°C | 39 mm | 76% | 3.7 m/s | 4.8 |
| 1988 | 19.5°C | 14.3°C | 9.1°C | 27.0°C | 4.1°C | 47 mm | 67% | 4 m/s | 4.8 |
| 1987 | 18.8°C | 13.8°C | 8.8°C | 31.0°C | 3.8°C | 14 mm | 70% | 3.4 m/s | 4.7 |
| 1986 | 16.9°C | 12.7°C | 8.5°C | 23.5°C | 4.9°C | 49 mm | 76% | 3.7 m/s | 4.8 |
| 1985 | 16.8°C | 12.0°C | 7.2°C | 23.5°C | 4.4°C | 39 mm | 73% | 3.5 m/s | 4.8 |
| 1984 | 15.3°C | 11.4°C | 7.5°C | 22.6°C | 3.4°C | 50 mm | 72% | 4 m/s | 4.5 |
| 1983 | 17.4°C | 12.8°C | 8.2°C | 25.4°C | 3.3°C | 50 mm | 75% | 4 m/s | — |
| 1982 | 18.3°C | 13.0°C | 7.7°C | 26.3°C | 3.9°C | 27 mm | 64% | 3.7 m/s | — |
| 1981 | 19.2°C | 14.3°C | 9.3°C | 28.0°C | 6.2°C | 23 mm | 73% | 3.5 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 18.3°C with lows near 8.7°C (mean 13.5°C), based on 45 years of NASA POWER data.
September averages 43 mm of rainfall in Meningie, about average for rainfall. The wettest on record was 124 mm in 2016.
The hottest September reached 31°C in 1987. The coldest dipped to 2°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.5°C. Daytime highs moved from 17.4°C to 19.2°C and overnight lows from 8°C to 9.2°C over the same span.
September is one of the cooler months of the year in Meningie and about average for rainfall, so plan for around 18.3°C daytime highs and 8.7°C at night.
Not quite — September is the 4th coolest month in Meningie, averaging 13.5°C.
For September in Meningie, pack light layers you can adjust through the day, with typical highs of 18.3°C and lows of 8.7°C.
Relative humidity in September averages 71% — moderately humid.
Average wind speed in September is 3.8 m/s. The windiest September on record averaged 4.8 m/s (1996).
The wettest September on record was 2016 with 124 mm. On average, September sees 43 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 Meningie 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.
