September is one of the cooler months of the year in Maryborough, with average highs near 26.2°C and lows around 14.1°C (mean 20.2°C). It is one of the drier months, averaging 35 mm of rainfall and 65% relative humidity across the period.
September is one of the cooler months of the year in Maryborough. Across 45 years of records, the warmest September in Maryborough was 2013 — when the month averaged 23°C — while the coldest was 1990 at 18.3°C. Typical September days reach 26.2°C with nights near 14.1°C. The long-term trend is warming, about 0.4°C per decade.
September is one of the drier months in Maryborough, averaging 35 mm of rainfall. The wettest September on record was 2010 with 137 mm, while the driest were 2000 and 2019 at 1 mm.
Relative humidity in Maryborough during September averages 65%. The most humid September was 1998 at 78%, and the least humid was 1991 at 48%.
September receives about 5.6 kWh/m²/day of solar energy in Maryborough. The sunniest September was 1991 at 6.3 kWh/m²/day, and the cloudiest was 2010 at 4.4.
Average wind speed in Maryborough during September is 0.8 m/s. The windiest Septembers were 2021, 2023 and 2024, among others at 0.8 m/s, while the calmest were 2010 and 2022 at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.4°C | 19.8°C | 20.3°C | 20.6°C | 20.9°C | +1.5°C |
| Avg High | 25.4°C | 25.8°C | 26.5°C | 26.8°C | 26.9°C | +1.5°C |
| Avg Low | 13.3°C | 13.7°C | 14.1°C | 14.5°C | 14.8°C | +1.5°C |
| Avg Rain | 28 mm | 52 mm | 34 mm | 32 mm | 24 mm | -4 mm |
September temperatures in Maryborough have risen by about 1.4°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 5.9°C (1987) to a record high of 38.1°C (2017).
Rainfall in September is one of the drier months, averaging 35 mm, with a wettest year of 137 mm.
One of the best times to visit Maryborough
September is one of the best times to visit Maryborough. Expect days averaging 26.2°C and nights around 14.1°C (mean 20.2°C) — cooler than Maryborough's yearly average — with moderate rainfall (35 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 27.1°C | 21.0°C | 14.8°C | 33.3°C | 10.5°C | 23 mm | 68% | 0.7 m/s | 5.6 |
| 2024 | 27.9°C | 21.7°C | 15.4°C | 31.6°C | 11.6°C | 13 mm | 65% | 0.8 m/s | 5.6 |
| 2023 | 27.5°C | 21.5°C | 15.4°C | 34.0°C | 12.6°C | 13 mm | 63% | 0.8 m/s | 5.6 |
| 2022 | 26.0°C | 20.2°C | 14.4°C | 30.2°C | 11.2°C | 51 mm | 68% | 0.6 m/s | 4.7 |
| 2021 | 26.4°C | 20.1°C | 13.7°C | 30.8°C | 9.1°C | 14 mm | 61% | 0.8 m/s | 5.7 |
| 2020 | 26.3°C | 20.8°C | 15.3°C | 29.8°C | 10.7°C | 32 mm | 67% | 0.8 m/s | 5.2 |
| 2019 | 28.7°C | 21.5°C | 14.4°C | 33.7°C | 10.1°C | 1 mm | 54% | 0.7 m/s | 6.1 |
| 2018 | 26.4°C | 20.4°C | 14.3°C | 31.3°C | 10.9°C | 33 mm | 64% | 0.8 m/s | 5.6 |
| 2017 | 29.5°C | 22.4°C | 15.3°C | 38.1°C | 10.4°C | 2 mm | 56% | 0.8 m/s | 6.2 |
| 2016 | 26.7°C | 21.1°C | 15.5°C | 30.1°C | 10.8°C | 41 mm | 65% | 0.8 m/s | 5 |
| 2015 | 25.4°C | 19.4°C | 13.5°C | 28.9°C | 8.3°C | 38 mm | 65% | 0.7 m/s | 5.6 |
| 2014 | 25.3°C | 19.5°C | 13.7°C | 29.2°C | 7.7°C | 23 mm | 66% | 0.7 m/s | 5.6 |
| 2013 🔥 | 29.4°C | 23.0°C | 16.7°C | 35.6°C | 12.7°C | 11 mm | 61% | 0.8 m/s | 5.8 |
| 2012 | 26.3°C | 20.1°C | 13.8°C | 32.5°C | 8.4°C | 19 mm | 65% | 0.7 m/s | 5.7 |
| 2011 | 25.1°C | 18.7°C | 12.3°C | 30.0°C | 6.7°C | 20 mm | 66% | 0.8 m/s | 5.9 |
| 2010 🌧️ | 24.9°C | 20.2°C | 15.6°C | 28.0°C | 12.0°C | 137 mm | 77% | 0.6 m/s | 4.4 |
| 2009 | 27.3°C | 20.6°C | 13.9°C | 32.1°C | 9.4°C | 77 mm | 63% | 0.7 m/s | 6.2 |
| 2008 | 25.7°C | 20.2°C | 14.8°C | 34.1°C | 10.3°C | 31 mm | 72% | 0.7 m/s | 5.5 |
| 2007 | 24.1°C | 18.9°C | 13.7°C | 29.8°C | 9.0°C | 79 mm | 78% | 0.8 m/s | 5.6 |
| 2006 | 25.0°C | 19.7°C | 14.4°C | 30.1°C | 9.5°C | 45 mm | 71% | 0.8 m/s | 5.4 |
| 2005 | 26.7°C | 20.4°C | 14.1°C | 31.6°C | 8.3°C | 14 mm | 65% | 0.8 m/s | 5.8 |
| 2004 | 26.1°C | 19.8°C | 13.4°C | 31.8°C | 8.9°C | 29 mm | 66% | 0.7 m/s | 5.7 |
| 2003 | 28.6°C | 21.4°C | 14.2°C | 33.7°C | 8.6°C | 10 mm | 59% | 0.7 m/s | 6.1 |
| 2002 | 26.9°C | 20.6°C | 14.4°C | 31.9°C | 8.7°C | 9 mm | 65% | 0.8 m/s | 6 |
| 2001 | 26.0°C | 20.0°C | 13.9°C | 29.9°C | 9.1°C | 45 mm | 65% | 0.8 m/s | 5.4 |
| 2000 | 28.4°C | 21.5°C | 14.6°C | 32.4°C | 10.9°C | 1 mm | 58% | 0.7 m/s | 6.2 |
| 1999 | 24.1°C | 19.1°C | 14.0°C | 28.1°C | 10.1°C | 47 mm | 75% | 0.8 m/s | 5.5 |
| 1998 | 24.5°C | 20.3°C | 16.1°C | 28.0°C | 9.9°C | 135 mm | 78% | 0.8 m/s | 4.9 |
| 1997 | 26.9°C | 21.1°C | 15.2°C | 32.9°C | 10.5°C | 47 mm | 66% | 0.8 m/s | 5.1 |
| 1996 | 27.4°C | 19.9°C | 12.5°C | 33.1°C | 6.4°C | 74 mm | 58% | 0.8 m/s | 5.8 |
| 1995 | 26.7°C | 20.5°C | 14.3°C | 30.3°C | 6.5°C | 18 mm | 62% | 0.8 m/s | 5.5 |
| 1994 | 26.5°C | 19.4°C | 12.4°C | 32.4°C | 7.9°C | 13 mm | 57% | 0.8 m/s | 6 |
| 1993 | 24.2°C | 19.0°C | 13.8°C | 33.2°C | 9.6°C | 81 mm | 70% | 0.8 m/s | 5 |
| 1992 | 24.8°C | 18.6°C | 12.5°C | 29.4°C | 7.1°C | 88 mm | 67% | 0.7 m/s | 5.5 |
| 1991 | 28.6°C | 21.4°C | 14.1°C | 33.5°C | 9.6°C | 3 mm | 48% | 0.7 m/s | 6.3 |
| 1990 ❄️ | 24.2°C | 18.3°C | 12.3°C | 28.1°C | 7.6°C | 11 mm | 63% | 0.8 m/s | 5.6 |
| 1989 | 24.7°C | 18.4°C | 12.0°C | 29.7°C | 7.5°C | 9 mm | 67% | 0.7 m/s | 6 |
| 1988 | 24.9°C | 19.4°C | 14.0°C | 33.6°C | 8.5°C | 31 mm | 72% | 0.8 m/s | 5.4 |
| 1987 | 25.7°C | 19.2°C | 12.8°C | 30.8°C | 5.9°C | 9 mm | 61% | 0.7 m/s | 5.6 |
| 1986 | 26.0°C | 19.9°C | 13.8°C | 31.2°C | 7.7°C | 30 mm | 64% | 0.8 m/s | 5.6 |
| 1985 | 25.2°C | 19.1°C | 13.1°C | 30.9°C | 6.7°C | 60 mm | 64% | 0.8 m/s | 5.6 |
| 1984 | 25.0°C | 18.4°C | 11.9°C | 28.0°C | 7.2°C | 47 mm | 61% | 0.7 m/s | 5.6 |
| 1983 | 25.3°C | 20.0°C | 14.8°C | 29.6°C | 9.8°C | 17 mm | 77% | 0.7 m/s | — |
| 1982 | 25.3°C | 19.2°C | 13.0°C | 31.1°C | 9.4°C | 39 mm | 66% | 0.8 m/s | — |
| 1981 | 26.7°C | 20.6°C | 14.4°C | 33.6°C | 7.3°C | 13 mm | 64% | 0.8 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 26.2°C with lows near 14.1°C (mean 20.2°C), based on 45 years of NASA POWER data.
September averages 35 mm of rainfall in Maryborough, one of the drier months. The wettest on record was 137 mm in 2010.
The hottest September reached 38.1°C in 2017. The coldest dipped to 5.9°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.4°C. Daytime highs moved from 25.5°C to 27°C and overnight lows from 13.4°C to 14.7°C over the same span.
September is one of the cooler months of the year in Maryborough and one of the drier months, so plan for around 26.2°C daytime highs and 14.1°C at night.
Not quite — September is the 5th coolest month in Maryborough, averaging 20.2°C.
For September in Maryborough, pack light layers you can adjust through the day, with typical highs of 26.2°C and lows of 14.1°C.
Relative humidity in September averages 65% — moderately humid.
Average wind speed in September is 0.8 m/s. The windiest September on record averaged 0.8 m/s (1981).
The wettest September on record was 2010 with 137 mm. On average, September sees 35 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 Maryborough 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.
