September is one of the cooler months of the year in Dubbo, with average highs near 20°C and lows around 6.3°C (mean 13.2°C). It is one of the drier months, averaging 39 mm of rainfall and 64% relative humidity across the period.
September is one of the cooler months of the year in Dubbo. Across 45 years of records, the warmest September in Dubbo was 2023 — when the month averaged 16.6°C — while the coldest was 1984 at 9.9°C. Typical September days reach 20°C with nights near 6.3°C. The long-term trend is warming, about 0.6°C per decade.
September is one of the drier months in Dubbo, averaging 39 mm of rainfall. The wettest Septembers on record were 2005 and 2016 with 98 mm, while the driest was 2007 at 2 mm.
Relative humidity in Dubbo during September averages 64%. The most humid September was 1998 at 83%, and the least humid was 2017 at 45%.
September receives about 5.2 kWh/m²/day of solar energy in Dubbo. The sunniest September was 2023 at 6 kWh/m²/day, and the cloudiest was 2016 at 4.2.
Average wind speed in Dubbo during September is 2.6 m/s. The windiest Septembers were 1982, 2011 and 2017 at 3 m/s, while the calmest were 1985 and 2004 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.3°C | 12.2°C | 13.9°C | 13.7°C | 14.0°C | +1.7°C |
| Avg High | 19.0°C | 18.5°C | 20.9°C | 20.7°C | 20.9°C | +1.9°C |
| Avg Low | 5.6°C | 5.8°C | 6.8°C | 6.7°C | 7.1°C | +1.5°C |
| Avg Rain | 32 mm | 54 mm | 35 mm | 37 mm | 38 mm | +6 mm |
September temperatures in Dubbo have risen by about 1.8°C between 1981–1985 and 2021–2025.
September has ranged from a record low of -1.5°C (1989) to a record high of 34.2°C (2017).
Rainfall in September is one of the drier months, averaging 39 mm, with a wettest year of 98 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.7°C per decade while lows rose 0.4°C per decade, widening the gap between day and night.
A good time to visit Dubbo
September is a good time to visit Dubbo, with days averaging 20°C and nights around 6.3°C (mean 13.2°C, cooler than Dubbo's yearly average) and moderate rainfall. March and December 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 | 21.4°C | 14.2°C | 7.0°C | 30.0°C | 1.9°C | 53 mm | 60% | 2.6 m/s | 5.4 |
| 2024 | 21.7°C | 14.3°C | 6.9°C | 27.0°C | 2.2°C | 13 mm | 57% | 2.6 m/s | 5.5 |
| 2023 🔥 | 25.0°C | 16.6°C | 8.3°C | 32.2°C | 0.8°C | 4 mm | 46% | 2.5 m/s | 6 |
| 2022 | 16.9°C | 11.8°C | 6.7°C | 20.1°C | 2.0°C | 86 mm | 80% | 2.6 m/s | 4.5 |
| 2021 | 19.7°C | 12.9°C | 6.1°C | 25.3°C | 1.2°C | 37 mm | 65% | 2.9 m/s | 5.4 |
| 2020 | 20.9°C | 14.3°C | 7.7°C | 27.2°C | 1.5°C | 36 mm | 69% | 2.8 m/s | 5.2 |
| 2019 | 22.7°C | 14.9°C | 7.1°C | 29.2°C | 0.7°C | 10 mm | 45% | 2.9 m/s | 5.6 |
| 2018 | 21.7°C | 14.1°C | 6.5°C | 29.6°C | 2.1°C | 9 mm | 52% | 2.8 m/s | 5.5 |
| 2017 | 21.9°C | 14.1°C | 6.2°C | 34.2°C | 0.6°C | 3 mm | 45% | 3 m/s | 5.3 |
| 2016 | 17.2°C | 11.9°C | 6.6°C | 20.6°C | 1.6°C | 98 mm | 78% | 2.7 m/s | 4.2 |
| 2015 | 20.4°C | 13.2°C | 6.0°C | 26.7°C | 0.9°C | 6 mm | 62% | 2.4 m/s | 5.6 |
| 2014 | 20.4°C | 13.6°C | 6.8°C | 29.0°C | 1.9°C | 20 mm | 63% | 2.6 m/s | 5.5 |
| 2013 | 22.7°C | 15.6°C | 8.4°C | 28.8°C | 3.1°C | 55 mm | 57% | 2.5 m/s | 5.6 |
| 2012 | 21.2°C | 13.5°C | 5.8°C | 28.5°C | 0.9°C | 35 mm | 57% | 2.6 m/s | 5.6 |
| 2011 | 21.2°C | 14.0°C | 6.8°C | 28.7°C | 2.6°C | 61 mm | 59% | 3 m/s | 5.4 |
| 2010 | 17.6°C | 12.0°C | 6.3°C | 23.3°C | 0.2°C | 69 mm | 79% | 2.4 m/s | 5 |
| 2009 | 21.2°C | 14.3°C | 7.4°C | 28.6°C | 2.5°C | 38 mm | 59% | 2.9 m/s | 5.1 |
| 2008 | 21.0°C | 13.8°C | 6.6°C | 28.3°C | 1.8°C | 51 mm | 61% | 2.9 m/s | 5.6 |
| 2007 | 21.1°C | 13.6°C | 6.2°C | 28.2°C | 2.7°C | 2 mm | 56% | 2.8 m/s | 5.6 |
| 2006 | 23.0°C | 15.2°C | 7.5°C | 29.5°C | 3.6°C | 11 mm | 53% | 2.6 m/s | 5.5 |
| 2005 🌧️ | 19.3°C | 13.0°C | 6.7°C | 27.0°C | 1.7°C | 98 mm | 70% | 2.5 m/s | 5.1 |
| 2004 | 19.6°C | 12.9°C | 6.2°C | 31.3°C | -1.5°C | 32 mm | 67% | 2.2 m/s | 5.3 |
| 2003 | 19.6°C | 12.5°C | 5.4°C | 30.2°C | 0.6°C | 10 mm | 63% | 2.7 m/s | 5.3 |
| 2002 | 21.9°C | 14.4°C | 6.9°C | 29.3°C | 0.8°C | 44 mm | 49% | 2.7 m/s | 5.4 |
| 2001 | 20.6°C | 14.1°C | 7.5°C | 29.0°C | 3.2°C | 35 mm | 67% | 2.4 m/s | 4.8 |
| 2000 | 21.8°C | 14.7°C | 7.6°C | 31.5°C | 1.2°C | 27 mm | 65% | 2.6 m/s | 5.3 |
| 1999 | 20.6°C | 14.4°C | 8.1°C | 27.5°C | 1.3°C | 47 mm | 66% | 2.6 m/s | 5 |
| 1998 | 18.2°C | 13.0°C | 7.9°C | 25.8°C | 1.7°C | 95 mm | 83% | 2.4 m/s | 4.7 |
| 1997 | 19.1°C | 12.7°C | 6.3°C | 23.2°C | 1.8°C | 78 mm | 71% | 2.4 m/s | 5 |
| 1996 | 17.5°C | 11.1°C | 4.6°C | 25.6°C | 0.0°C | 65 mm | 72% | 2.9 m/s | 5.1 |
| 1995 | 20.0°C | 13.2°C | 6.4°C | 27.9°C | -1.4°C | 47 mm | 64% | 2.4 m/s | 4.9 |
| 1994 | 19.4°C | 11.7°C | 4.0°C | 25.4°C | -0.4°C | 11 mm | 53% | 2.8 m/s | 5.7 |
| 1993 | 17.6°C | 11.6°C | 5.5°C | 23.2°C | 0.0°C | 91 mm | 77% | 2.7 m/s | 5 |
| 1992 | 16.9°C | 10.5°C | 4.1°C | 24.8°C | -1.3°C | 44 mm | 69% | 2.4 m/s | 4.9 |
| 1991 | 18.5°C | 11.9°C | 5.2°C | 25.3°C | -1.2°C | 34 mm | 66% | 2.8 m/s | 5.5 |
| 1990 | 17.2°C | 11.5°C | 5.7°C | 24.0°C | 1.8°C | 27 mm | 81% | 2.6 m/s | 5.2 |
| 1989 | 18.1°C | 11.2°C | 4.2°C | 26.0°C | -1.5°C | 8 mm | 73% | 2.6 m/s | 5.5 |
| 1988 | 19.5°C | 13.2°C | 6.9°C | 24.7°C | 2.3°C | 65 mm | 72% | 2.5 m/s | 5 |
| 1987 | 20.0°C | 12.8°C | 5.6°C | 28.7°C | -0.9°C | 18 mm | 66% | 2.3 m/s | 5.4 |
| 1986 | 19.0°C | 12.7°C | 6.5°C | 28.0°C | 1.0°C | 34 mm | 70% | 2.6 m/s | 4.9 |
| 1985 | 17.9°C | 11.7°C | 5.4°C | 25.2°C | 0.0°C | 39 mm | 72% | 2.2 m/s | 5.2 |
| 1984 ❄️ | 15.9°C | 9.9°C | 3.8°C | 21.1°C | -1.0°C | 51 mm | 75% | 2.7 m/s | 4.9 |
| 1983 | 19.0°C | 12.5°C | 6.0°C | 25.6°C | 2.3°C | 46 mm | 76% | 2.7 m/s | — |
| 1982 | 20.6°C | 13.2°C | 5.8°C | 29.2°C | -1.2°C | 15 mm | 50% | 3 m/s | — |
| 1981 | 21.2°C | 13.8°C | 6.4°C | 28.8°C | 1.4°C | 14 mm | 66% | 2.3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 20°C with lows near 6.3°C (mean 13.2°C), based on 45 years of NASA POWER data.
September averages 39 mm of rainfall in Dubbo, one of the drier months. The wettest on record was 98 mm in 2005.
The hottest September reached 34.2°C in 2017. The coldest dipped to -1.5°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.8°C. Daytime highs moved from 18.9°C to 20.9°C and overnight lows from 5.5°C to 7°C over the same span.
September is one of the cooler months of the year in Dubbo and one of the drier months, so plan for around 20°C daytime highs and 6.3°C at night.
Not quite — September is the 5th coolest month in Dubbo, averaging 13.2°C.
For September in Dubbo, pack warm layers and a jacket for chilly mornings, with typical highs of 20°C and lows of 6.3°C.
Relative humidity in September averages 64% — moderately humid.
Average wind speed in September is 2.6 m/s. The windiest September on record averaged 3 m/s (1982).
The wettest September on record was 2005 with 98 mm. On average, September sees 39 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 Dubbo 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.
