August is one of the cooler months of the year in Gawler, with average highs near 15.9°C and lows around 5.6°C (mean 10.8°C). It is a relatively wet time of year, averaging 53 mm of rainfall and 76% relative humidity across the period.
August is one of the cooler months of the year in Gawler. Across 45 years of records, the warmest August in Gawler was 2024 — when the month averaged 13.8°C — while the coldest was 1989 at 8.6°C. Typical August days reach 15.9°C with nights near 5.6°C. The long-term trend is warming, about 0.3°C per decade.
August is a relatively wet time of year in Gawler, averaging 53 mm of rainfall. The wettest August on record was 1992 with 119 mm, while the driest was 2014 at 8 mm.
Relative humidity in Gawler during August averages 76%. The most humid August was 1989 at 84%, and the least humid was 1982 at 63%.
August receives about 3.5 kWh/m²/day of solar energy in Gawler. The sunniest Augusts were 2007 and 2014 at 3.9 kWh/m²/day, and the cloudiest was 2001 at 3.1.
Average wind speed in Gawler during August is 2.7 m/s. The windiest August was 1991 at 3.5 m/s, while the calmest was 2014 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.4°C | 10.4°C | 10.8°C | 10.9°C | 11.7°C | +1.3°C |
| Avg High | 15.3°C | 15.4°C | 16.1°C | 15.9°C | 17.0°C | +1.7°C |
| Avg Low | 5.4°C | 5.4°C | 5.5°C | 5.8°C | 6.5°C | +1.1°C |
| Avg Rain | 66 mm | 56 mm | 51 mm | 45 mm | 44 mm | -22 mm |
August temperatures in Gawler have risen by about 1.2°C between 1981–1985 and 2021–2025.
August has ranged from a record low of -0.4°C (1989) to a record high of 28.3°C (2024).
Rainfall in August is a relatively wet time of year, averaging 53 mm, with a wettest year of 119 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 Gawler
If your dates are flexible, the more temperate months of December and March tend to be the most comfortable for visiting Gawler. That said, August — with days averaging 15.9°C and nights around 5.6°C (mean 10.8°C) and moderate rainfall (53 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 | 16.6°C | 11.3°C | 6.1°C | 23.8°C | 2.1°C | 38 mm | 74% | 2.7 m/s | 3.5 |
| 2024 🔥 | 19.4°C | 13.8°C | 8.3°C | 28.3°C | 4.3°C | 34 mm | 70% | 3.1 m/s | 3.5 |
| 2023 | 18.3°C | 12.5°C | 6.6°C | 26.4°C | 2.7°C | 28 mm | 72% | 2.2 m/s | 3.5 |
| 2022 | 15.8°C | 11.3°C | 6.8°C | 21.8°C | 4.2°C | 75 mm | 79% | 3 m/s | 3.3 |
| 2021 | 16.4°C | 11.2°C | 5.9°C | 23.0°C | 1.7°C | 38 mm | 77% | 2.4 m/s | 3.8 |
| 2020 | 15.2°C | 10.2°C | 5.2°C | 23.8°C | -0.4°C | 52 mm | 78% | 2.5 m/s | 3.5 |
| 2019 | 16.2°C | 10.6°C | 4.9°C | 21.1°C | 0.8°C | 31 mm | 72% | 2.6 m/s | 3.5 |
| 2018 | 16.9°C | 11.5°C | 6.1°C | 25.1°C | 2.5°C | 43 mm | 67% | 3.4 m/s | 3.5 |
| 2017 | 16.0°C | 10.9°C | 5.8°C | 23.0°C | 0.8°C | 43 mm | 73% | 3 m/s | 3.3 |
| 2016 | 16.5°C | 11.3°C | 6.1°C | 22.8°C | 1.6°C | 36 mm | 75% | 2.5 m/s | 3.7 |
| 2015 | 15.7°C | 10.6°C | 5.6°C | 22.0°C | 2.0°C | 37 mm | 78% | 2.4 m/s | 3.4 |
| 2014 | 16.1°C | 10.2°C | 4.3°C | 23.4°C | 0.7°C | 8 mm | 75% | 1.8 m/s | 3.9 |
| 2013 | 15.7°C | 11.2°C | 6.8°C | 23.5°C | 3.6°C | 69 mm | 83% | 2.9 m/s | 3.3 |
| 2012 | 14.9°C | 10.2°C | 5.5°C | 20.1°C | 1.4°C | 49 mm | 79% | 2.7 m/s | 3.2 |
| 2011 | 17.2°C | 12.2°C | 7.1°C | 24.9°C | 2.8°C | 57 mm | 78% | 2.3 m/s | 3.5 |
| 2010 | 14.3°C | 9.9°C | 5.5°C | 19.0°C | 2.8°C | 77 mm | 79% | 3 m/s | 3.2 |
| 2009 | 17.4°C | 12.1°C | 6.8°C | 25.0°C | 2.6°C | 33 mm | 76% | 3 m/s | 3.4 |
| 2008 | 13.8°C | 9.2°C | 4.7°C | 19.1°C | 1.4°C | 67 mm | 81% | 2.5 m/s | 3.4 |
| 2007 | 17.1°C | 11.4°C | 5.7°C | 27.1°C | 1.4°C | 17 mm | 73% | 2.6 m/s | 3.9 |
| 2006 | 18.2°C | 11.9°C | 5.6°C | 24.6°C | 3.2°C | 12 mm | 72% | 2.1 m/s | 3.8 |
| 2005 | 17.0°C | 11.5°C | 6.0°C | 24.7°C | 2.1°C | 63 mm | 74% | 2.8 m/s | 3.4 |
| 2004 | 15.6°C | 10.5°C | 5.4°C | 23.7°C | 1.6°C | 73 mm | 78% | 2.7 m/s | 3.5 |
| 2003 | 14.3°C | 9.4°C | 4.5°C | 21.1°C | 1.4°C | 83 mm | 77% | 3.1 m/s | 3.2 |
| 2002 | 16.3°C | 10.5°C | 4.6°C | 22.3°C | 0.0°C | 25 mm | 71% | 2.4 m/s | 3.7 |
| 2001 | 15.8°C | 11.0°C | 6.3°C | 21.4°C | 3.0°C | 77 mm | 75% | 3.1 m/s | 3.1 |
| 2000 | 15.0°C | 10.1°C | 5.2°C | 20.0°C | 1.7°C | 56 mm | 79% | 2.4 m/s | 3.4 |
| 1999 | 17.0°C | 11.2°C | 5.4°C | 24.2°C | 1.1°C | 33 mm | 73% | 2.5 m/s | 3.7 |
| 1998 | 16.3°C | 11.1°C | 5.9°C | 22.4°C | 1.8°C | 39 mm | 77% | 2.4 m/s | 3.4 |
| 1997 | 14.9°C | 9.9°C | 4.9°C | 21.0°C | 1.6°C | 68 mm | 74% | 2.5 m/s | 3.3 |
| 1996 | 14.3°C | 10.1°C | 5.8°C | 19.9°C | 2.4°C | 78 mm | 82% | 2.7 m/s | 3.3 |
| 1995 | 16.6°C | 10.9°C | 5.2°C | 24.1°C | 2.5°C | 22 mm | 77% | 2.4 m/s | 3.7 |
| 1994 | 15.2°C | 9.8°C | 4.4°C | 22.7°C | 1.1°C | 16 mm | 74% | 2.2 m/s | 3.7 |
| 1993 | 17.5°C | 12.0°C | 6.5°C | 23.7°C | 1.5°C | 43 mm | 68% | 2.8 m/s | 3.6 |
| 1992 🌧️ | 14.4°C | 9.6°C | 4.8°C | 20.7°C | 0.0°C | 119 mm | 78% | 3.1 m/s | 3.4 |
| 1991 | 14.5°C | 10.2°C | 5.8°C | 19.9°C | 1.5°C | 72 mm | 79% | 3.5 m/s | 3.3 |
| 1990 | 13.5°C | 9.5°C | 5.5°C | 17.1°C | 2.9°C | 72 mm | 83% | 3.2 m/s | 3.2 |
| 1989 ❄️ | 13.0°C | 8.6°C | 4.1°C | 19.3°C | -0.4°C | 69 mm | 84% | 2.8 m/s | 3.6 |
| 1988 | 16.0°C | 10.7°C | 5.5°C | 23.0°C | 1.1°C | 28 mm | 77% | 2.5 m/s | 3.3 |
| 1987 | 14.8°C | 10.0°C | 5.2°C | 19.6°C | 0.5°C | 38 mm | 82% | 2.4 m/s | 3.4 |
| 1986 | 14.6°C | 10.0°C | 5.3°C | 19.4°C | 1.5°C | 93 mm | 80% | 2.7 m/s | 3.4 |
| 1985 | 14.7°C | 10.0°C | 5.4°C | 22.4°C | 1.5°C | 94 mm | 80% | 2.8 m/s | 3.3 |
| 1984 | 14.5°C | 10.3°C | 6.0°C | 21.0°C | 2.1°C | 94 mm | 80% | 3.2 m/s | 3.3 |
| 1983 | 16.1°C | 10.7°C | 5.3°C | 21.5°C | 1.0°C | 63 mm | 78% | 2.4 m/s | — |
| 1982 | 19.9°C | 13.0°C | 6.0°C | 27.2°C | 1.3°C | 18 mm | 63% | 2.3 m/s | — |
| 1981 | 14.4°C | 9.9°C | 5.5°C | 17.9°C | 0.8°C | 94 mm | 81% | 3.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 15.9°C with lows near 5.6°C (mean 10.8°C), based on 45 years of NASA POWER data.
August averages 53 mm of rainfall in Gawler, a relatively wet time of year. The wettest on record was 119 mm in 1992.
The hottest August reached 28.3°C in 2024. The coldest dipped to -0.4°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.2°C. Daytime highs moved from 15.9°C to 17.3°C and overnight lows from 5.6°C to 6.7°C over the same span.
August is one of the cooler months of the year in Gawler and a relatively wet time of year, so plan for around 15.9°C daytime highs and 5.6°C at night.
Not quite — August is the 2nd coolest month in Gawler, averaging 10.8°C.
For August in Gawler, pack warm layers and a jacket for chilly mornings, with typical highs of 15.9°C and lows of 5.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 76% — quite humid.
Average wind speed in August is 2.7 m/s. The windiest August on record averaged 3.5 m/s (1991).
The wettest August on record was 1992 with 119 mm. On average, August sees 53 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 Gawler 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.
