August is one of the cooler months of the year in Gladstone, with average highs near 23.6°C and lows around 12.9°C (mean 18.3°C). It is one of the drier months, averaging 31 mm of rainfall and 68% relative humidity across the period.
August is one of the cooler months of the year in Gladstone. Across 45 years of records, the warmest August in Gladstone was 2009 — when the month averaged 20.8°C — while the coldest was 2008 at 16°C. Typical August days reach 23.6°C with nights near 12.9°C. The long-term trend is warming, about 0.3°C per decade.
August is one of the drier months in Gladstone, averaging 31 mm of rainfall. The wettest August on record was 1998 with 119 mm, while the driest were 2009 and 2013 at 0 mm.
Relative humidity in Gladstone during August averages 68%. The most humid August was 2024 at 78%, and the least humid was 2004 at 58%.
August receives about 4.8 kWh/m²/day of solar energy in Gladstone. The sunniest Augusts were 2001, 2004 and 2013 at 5.3 kWh/m²/day, and the cloudiest was 1998 at 4.1.
Average wind speed in Gladstone during August is 2.6 m/s. The windiest August was 1982 at 3.8 m/s, while the calmest was 2012 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.5°C | 18.1°C | 18.4°C | 18.5°C | 19.0°C | +1.5°C |
| Avg High | 22.6°C | 23.4°C | 23.8°C | 24.0°C | 24.3°C | +1.7°C |
| Avg Low | 12.5°C | 12.9°C | 13.0°C | 12.9°C | 13.6°C | +1.1°C |
| Avg Rain | 37 mm | 31 mm | 29 mm | 29 mm | 26 mm | -12 mm |
August temperatures in Gladstone have risen by about 1.4°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 4.5°C (1989) to a record high of 33.1°C (2009).
Rainfall in August is one of the drier months, averaging 31 mm, with a wettest year of 119 mm.
A good time to visit Gladstone
August is a good time to visit Gladstone, with days averaging 23.6°C and nights around 12.9°C (mean 18.3°C, cooler than Gladstone's yearly average) and moderate rainfall. September and April are marginally more temperate, but August still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 23.9°C | 18.5°C | 13.1°C | 30.3°C | 9.7°C | 19 mm | 68% | 2.6 m/s | 4.8 |
| 2024 | 24.8°C | 20.0°C | 15.2°C | 28.9°C | 10.2°C | 82 mm | 78% | 2.4 m/s | 4.6 |
| 2023 | 25.6°C | 20.1°C | 14.7°C | 30.1°C | 10.8°C | 4 mm | 67% | 2.8 m/s | 5.1 |
| 2022 | 23.0°C | 17.7°C | 12.5°C | 26.1°C | 7.8°C | 10 mm | 71% | 2.3 m/s | 4.8 |
| 2021 | 24.5°C | 19.1°C | 13.6°C | 29.3°C | 8.8°C | 9 mm | 68% | 2.6 m/s | 4.9 |
| 2020 | 24.0°C | 18.3°C | 12.6°C | 28.8°C | 8.4°C | 31 mm | 65% | 2.6 m/s | 5 |
| 2019 | 24.5°C | 18.8°C | 13.1°C | 28.3°C | 8.5°C | 3 mm | 60% | 2.6 m/s | 5 |
| 2018 | 24.7°C | 18.6°C | 12.6°C | 28.7°C | 7.4°C | 9 mm | 59% | 2.3 m/s | 5.2 |
| 2017 | 25.8°C | 19.9°C | 14.0°C | 30.3°C | 8.9°C | 11 mm | 62% | 2.2 m/s | 5 |
| 2016 | 22.7°C | 18.0°C | 13.2°C | 27.4°C | 7.0°C | 16 mm | 74% | 2.8 m/s | 4.7 |
| 2015 | 24.4°C | 18.8°C | 13.1°C | 27.8°C | 6.8°C | 32 mm | 68% | 2.3 m/s | 5 |
| 2014 | 23.2°C | 18.1°C | 12.9°C | 26.0°C | 8.8°C | 51 mm | 70% | 2.9 m/s | 4.7 |
| 2013 | 25.2°C | 19.1°C | 13.1°C | 28.5°C | 8.3°C | 0 mm | 66% | 2.1 m/s | 5.3 |
| 2012 | 23.0°C | 17.5°C | 12.0°C | 26.5°C | 6.4°C | 29 mm | 70% | 2 m/s | 5 |
| 2011 | 23.1°C | 18.1°C | 13.1°C | 25.8°C | 9.3°C | 65 mm | 72% | 2.8 m/s | 4.5 |
| 2010 | 23.3°C | 17.8°C | 12.3°C | 27.6°C | 7.2°C | 78 mm | 68% | 2.4 m/s | 4.3 |
| 2009 🔥 | 26.7°C | 20.8°C | 14.8°C | 33.1°C | 10.1°C | 0 mm | 70% | 2.5 m/s | 5.2 |
| 2008 ❄️ | 21.5°C | 16.0°C | 10.5°C | 24.5°C | 5.7°C | 4 mm | 67% | 2.3 m/s | 5 |
| 2007 | 23.4°C | 18.6°C | 13.8°C | 26.7°C | 8.0°C | 36 mm | 74% | 2.6 m/s | 4.5 |
| 2006 | 24.1°C | 18.5°C | 13.0°C | 29.6°C | 8.1°C | 40 mm | 70% | 2.4 m/s | 5.1 |
| 2005 | 22.9°C | 18.2°C | 13.6°C | 25.6°C | 5.8°C | 33 mm | 68% | 3 m/s | 4.5 |
| 2004 | 24.5°C | 18.5°C | 12.5°C | 27.1°C | 8.4°C | 16 mm | 58% | 2.4 m/s | 5.3 |
| 2003 | 23.9°C | 18.7°C | 13.6°C | 28.0°C | 5.5°C | 69 mm | 69% | 2.5 m/s | 4.7 |
| 2002 | 22.5°C | 17.6°C | 12.7°C | 26.1°C | 7.9°C | 78 mm | 72% | 2.8 m/s | 4.5 |
| 2001 | 24.3°C | 18.2°C | 12.1°C | 28.0°C | 7.7°C | 6 mm | 59% | 2.5 m/s | 5.3 |
| 2000 | 24.1°C | 18.5°C | 13.0°C | 30.2°C | 8.6°C | 10 mm | 63% | 2.8 m/s | 4.9 |
| 1999 | 22.7°C | 18.0°C | 13.3°C | 26.6°C | 8.2°C | 22 mm | 74% | 3 m/s | 4.7 |
| 1998 🌧️ | 24.0°C | 19.5°C | 14.9°C | 28.1°C | 6.4°C | 119 mm | 76% | 3 m/s | 4.1 |
| 1997 | 23.0°C | 18.0°C | 13.0°C | 26.0°C | 7.7°C | 11 mm | 66% | 2.6 m/s | 4.9 |
| 1996 | 23.5°C | 18.1°C | 12.8°C | 26.9°C | 5.7°C | 26 mm | 71% | 2.6 m/s | 4.9 |
| 1995 | 22.4°C | 17.8°C | 13.1°C | 25.6°C | 5.0°C | 49 mm | 68% | 3.3 m/s | 4.5 |
| 1994 | 22.9°C | 17.7°C | 12.5°C | 26.3°C | 7.3°C | 3 mm | 63% | 2.9 m/s | 4.8 |
| 1993 | 23.4°C | 18.3°C | 13.1°C | 26.1°C | 7.2°C | 44 mm | 69% | 2.6 m/s | 5 |
| 1992 | 23.9°C | 18.1°C | 12.4°C | 28.5°C | 6.8°C | 26 mm | 67% | 2.5 m/s | 4.7 |
| 1991 | 25.5°C | 19.5°C | 13.5°C | 31.0°C | 9.0°C | 1 mm | 60% | 2.6 m/s | 5 |
| 1990 | 22.5°C | 16.3°C | 10.1°C | 28.0°C | 6.3°C | 6 mm | 65% | 2.7 m/s | 5.1 |
| 1989 | 21.5°C | 16.3°C | 11.1°C | 27.4°C | 4.5°C | 44 mm | 71% | 2.3 m/s | 5 |
| 1988 | 22.1°C | 17.6°C | 13.0°C | 26.5°C | 6.1°C | 102 mm | 76% | 3.1 m/s | 4.4 |
| 1987 | 23.5°C | 18.2°C | 12.9°C | 27.1°C | 8.1°C | 19 mm | 70% | 2.7 m/s | 4.8 |
| 1986 | 22.0°C | 17.2°C | 12.4°C | 25.7°C | 6.6°C | 89 mm | 71% | 2.3 m/s | 4.5 |
| 1985 | 23.1°C | 17.9°C | 12.7°C | 27.8°C | 5.6°C | 19 mm | 72% | 2.4 m/s | 4.8 |
| 1984 | 23.1°C | 17.5°C | 11.9°C | 27.0°C | 5.9°C | 7 mm | 69% | 2.4 m/s | 4.7 |
| 1983 | 21.0°C | 16.6°C | 12.3°C | 24.4°C | 6.8°C | 38 mm | 77% | 2.7 m/s | — |
| 1982 | 23.0°C | 18.5°C | 14.1°C | 26.3°C | 6.7°C | 6 mm | 66% | 3.8 m/s | — |
| 1981 | 24.0°C | 17.8°C | 11.7°C | 27.5°C | 7.9°C | 13 mm | 63% | 2.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 23.6°C with lows near 12.9°C (mean 18.3°C), based on 45 years of NASA POWER data.
August averages 31 mm of rainfall in Gladstone, one of the drier months. The wettest on record was 119 mm in 1998.
The hottest August reached 33.1°C in 2009. The coldest dipped to 4.5°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.4°C. Daytime highs moved from 22.8°C to 24.4°C and overnight lows from 12.5°C to 13.8°C over the same span.
August is one of the cooler months of the year in Gladstone and one of the drier months, so plan for around 23.6°C daytime highs and 12.9°C at night.
Not quite — August is the 3rd coolest month in Gladstone, averaging 18.3°C.
For August in Gladstone, pack light layers you can adjust through the day, with typical highs of 23.6°C and lows of 12.9°C.
Relative humidity in August averages 68% — moderately humid.
Average wind speed in August is 2.6 m/s. The windiest August on record averaged 3.8 m/s (1982).
The wettest August on record was 1998 with 119 mm. On average, August sees 31 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 Gladstone 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.
