August is one of the cooler months of the year in Goondiwindi, with average highs near 21.6°C and lows around 6.5°C (mean 14.1°C). It is one of the drier months, averaging 26 mm of rainfall and 62% relative humidity across the period.
August is one of the cooler months of the year in Goondiwindi. Across 45 years of records, the warmest August in Goondiwindi was 2024 — when the month averaged 17.9°C — while the coldest was 1989 at 11.5°C. Typical August days reach 21.6°C with nights near 6.5°C. The long-term trend is warming, about 0.5°C per decade.
August is one of the drier months in Goondiwindi, averaging 26 mm of rainfall. The wettest August on record was 1998 with 154 mm, while the driest was 1991 at 0 mm.
Relative humidity in Goondiwindi during August averages 62%. The most humid August was 1998 at 79%, and the least humid was 2019 at 43%.
August receives about 4.6 kWh/m²/day of solar energy in Goondiwindi. The sunniest August was 2017 at 5.1 kWh/m²/day, and the cloudiest was 1998 at 4.
Average wind speed in Goondiwindi during August is 2.4 m/s. The windiest August was 1990 at 2.9 m/s, while the calmest was 1982 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.0°C | 13.7°C | 14.3°C | 14.1°C | 15.4°C | +2.4°C |
| Avg High | 20.3°C | 21.3°C | 22.1°C | 21.9°C | 22.8°C | +2.5°C |
| Avg Low | 5.8°C | 6.2°C | 6.5°C | 6.5°C | 8.0°C | +2.2°C |
| Avg Rain | 32 mm | 33 mm | 20 mm | 23 mm | 23 mm | -9 mm |
August temperatures in Goondiwindi have risen by about 2.7°C between 1981–1985 and 2021–2025.
August has ranged from a record low of -1.8°C (2003) to a record high of 36.5°C (2009).
Rainfall in August is one of the drier months, averaging 26 mm, with a wettest year of 154 mm.
A quieter season to visit Goondiwindi
If your dates are flexible, the more temperate months of October and April tend to be the most comfortable for visiting Goondiwindi. That said, August — with days averaging 21.6°C and nights around 6.5°C (mean 14.1°C) and low rainfall (26 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 | 20.9°C | 14.0°C | 7.1°C | 27.8°C | 1.4°C | 23 mm | 69% | 2.2 m/s | 4.5 |
| 2024 🔥 | 25.5°C | 17.9°C | 10.3°C | 33.5°C | 2.7°C | 25 mm | 63% | 2.3 m/s | 4.3 |
| 2023 | 25.6°C | 17.7°C | 9.9°C | 30.8°C | 5.4°C | 6 mm | 50% | 2.2 m/s | 4.6 |
| 2022 | 20.9°C | 14.1°C | 7.2°C | 26.1°C | 2.2°C | 33 mm | 70% | 2.5 m/s | 4.2 |
| 2021 | 22.5°C | 14.9°C | 7.3°C | 28.9°C | 3.0°C | 22 mm | 66% | 2.4 m/s | 4.6 |
| 2020 | 21.6°C | 14.0°C | 6.3°C | 29.6°C | 1.8°C | 28 mm | 63% | 2.5 m/s | 4.6 |
| 2019 | 23.3°C | 15.2°C | 7.2°C | 28.5°C | 2.1°C | 2 mm | 43% | 2.4 m/s | 4.7 |
| 2018 | 22.3°C | 14.1°C | 5.9°C | 28.1°C | 0.9°C | 26 mm | 46% | 2.6 m/s | 4.9 |
| 2017 | 23.1°C | 14.5°C | 6.0°C | 31.9°C | 1.2°C | 9 mm | 48% | 2.4 m/s | 5.1 |
| 2016 | 21.4°C | 14.1°C | 6.8°C | 25.6°C | 1.9°C | 41 mm | 67% | 2.3 m/s | 4.2 |
| 2015 | 21.5°C | 13.8°C | 6.1°C | 29.5°C | 0.4°C | 12 mm | 64% | 2.3 m/s | 4.8 |
| 2014 | 21.0°C | 13.8°C | 6.7°C | 25.0°C | 0.5°C | 43 mm | 66% | 2.5 m/s | 4.3 |
| 2013 | 23.5°C | 15.2°C | 6.9°C | 30.5°C | 0.7°C | 3 mm | 55% | 2.3 m/s | 4.9 |
| 2012 | 21.3°C | 13.5°C | 5.7°C | 28.6°C | 0.9°C | 4 mm | 58% | 2.4 m/s | 4.9 |
| 2011 | 22.3°C | 14.9°C | 7.5°C | 26.6°C | 4.2°C | 37 mm | 66% | 2.3 m/s | 4.4 |
| 2010 | 19.1°C | 12.4°C | 5.8°C | 24.6°C | 1.8°C | 54 mm | 70% | 2.6 m/s | 4.2 |
| 2009 | 25.6°C | 17.0°C | 8.3°C | 36.5°C | 3.6°C | 5 mm | 50% | 2.4 m/s | 4.7 |
| 2008 | 19.8°C | 12.2°C | 4.6°C | 28.0°C | -1.2°C | 17 mm | 63% | 2.6 m/s | 4.6 |
| 2007 | 22.7°C | 15.4°C | 8.1°C | 27.4°C | 1.8°C | 45 mm | 63% | 2.4 m/s | 4.1 |
| 2006 | 23.0°C | 14.6°C | 6.3°C | 28.4°C | 2.8°C | 4 mm | 56% | 2.2 m/s | 4.8 |
| 2005 | 21.1°C | 13.2°C | 5.3°C | 26.2°C | -1.1°C | 9 mm | 66% | 2.4 m/s | 4.8 |
| 2004 | 22.2°C | 14.1°C | 6.1°C | 30.2°C | 1.3°C | 19 mm | 54% | 2.6 m/s | 4.7 |
| 2003 | 21.9°C | 14.5°C | 7.1°C | 29.2°C | -1.8°C | 25 mm | 64% | 2.7 m/s | 4.3 |
| 2002 | 22.5°C | 14.9°C | 7.3°C | 28.8°C | 1.2°C | 54 mm | 55% | 2.4 m/s | 4.4 |
| 2001 | 20.7°C | 12.8°C | 4.9°C | 24.7°C | 1.3°C | 12 mm | 62% | 2.6 m/s | 4.7 |
| 2000 | 21.6°C | 14.1°C | 6.7°C | 26.3°C | 0.3°C | 14 mm | 58% | 2.6 m/s | 4.5 |
| 1999 | 21.7°C | 14.2°C | 6.8°C | 26.4°C | 1.1°C | 31 mm | 67% | 2.4 m/s | 4.5 |
| 1998 🌧️ | 20.6°C | 14.6°C | 8.6°C | 24.7°C | -0.3°C | 154 mm | 79% | 2.6 m/s | 4 |
| 1997 | 21.8°C | 13.7°C | 5.6°C | 26.7°C | 0.1°C | 2 mm | 55% | 2.3 m/s | 4.9 |
| 1996 | 20.7°C | 13.5°C | 6.2°C | 26.8°C | -0.8°C | 36 mm | 64% | 2.2 m/s | 4.2 |
| 1995 | 23.3°C | 15.1°C | 6.9°C | 32.2°C | -1.6°C | 1 mm | 61% | 2.2 m/s | 4.8 |
| 1994 | 21.7°C | 13.4°C | 5.1°C | 26.6°C | 0.0°C | 18 mm | 52% | 2.1 m/s | 4.9 |
| 1993 | 21.9°C | 14.2°C | 6.6°C | 26.3°C | 2.8°C | 28 mm | 65% | 2.4 m/s | 4.6 |
| 1992 | 21.4°C | 13.5°C | 5.7°C | 27.0°C | 1.2°C | 45 mm | 57% | 2.6 m/s | 4.6 |
| 1991 | 21.4°C | 13.4°C | 5.4°C | 28.9°C | 1.0°C | 0 mm | 59% | 2.5 m/s | 4.8 |
| 1990 | 18.5°C | 11.7°C | 4.9°C | 24.4°C | 0.4°C | 14 mm | 69% | 2.9 m/s | 4.5 |
| 1989 ❄️ | 18.8°C | 11.5°C | 4.1°C | 26.2°C | -0.6°C | 3 mm | 67% | 2.2 m/s | 4.8 |
| 1988 | 20.7°C | 13.8°C | 6.9°C | 26.7°C | -0.8°C | 43 mm | 73% | 2.6 m/s | 4.5 |
| 1987 | 21.2°C | 14.3°C | 7.5°C | 26.3°C | 1.9°C | 66 mm | 71% | 2.5 m/s | 4.1 |
| 1986 | 20.0°C | 12.7°C | 5.4°C | 24.4°C | 0.5°C | 35 mm | 64% | 2.5 m/s | 4.5 |
| 1985 | 20.6°C | 13.3°C | 6.0°C | 26.9°C | -0.9°C | 64 mm | 68% | 2.5 m/s | 4.3 |
| 1984 | 19.3°C | 12.2°C | 5.1°C | 24.3°C | 1.5°C | 17 mm | 70% | 2.5 m/s | 4.7 |
| 1983 | 19.0°C | 12.6°C | 6.2°C | 22.6°C | 1.9°C | 39 mm | 76% | 2.3 m/s | — |
| 1982 | 23.6°C | 15.1°C | 6.7°C | 28.6°C | 0.9°C | 5 mm | 56% | 2 m/s | — |
| 1981 | 19.5°C | 11.7°C | 4.0°C | 24.6°C | 1.2°C | 14 mm | 64% | 2.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 21.6°C with lows near 6.5°C (mean 14.1°C), based on 45 years of NASA POWER data.
August averages 26 mm of rainfall in Goondiwindi, one of the drier months. The wettest on record was 154 mm in 1998.
The hottest August reached 36.5°C in 2009. The coldest dipped to -1.8°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 2.7°C. Daytime highs moved from 20.4°C to 23.1°C and overnight lows from 5.6°C to 8.4°C over the same span.
August is one of the cooler months of the year in Goondiwindi and one of the drier months, so plan for around 21.6°C daytime highs and 6.5°C at night.
Not quite — August is the 3rd coolest month in Goondiwindi, averaging 14.1°C.
For August in Goondiwindi, pack warm layers and a jacket for chilly mornings, with typical highs of 21.6°C and lows of 6.5°C.
Relative humidity in August averages 62% — moderately humid.
Average wind speed in August is 2.4 m/s. The windiest August on record averaged 2.9 m/s (1990).
The wettest August on record was 1998 with 154 mm. On average, August sees 26 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 Goondiwindi behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
