August is one of the cooler months of the year in Hervey Bay, with average highs near 21.3°C and lows around 16.4°C (mean 18.9°C). It is one of the drier months, averaging 47 mm of rainfall and 69% relative humidity across the period.
August is one of the cooler months of the year in Hervey Bay. Across 45 years of records, the warmest August in Hervey Bay was 2024 — when the month averaged 20.8°C — while the coldest were 1990 and 2008 at 16.7°C. Typical August days reach 21.3°C with nights near 16.4°C. The long-term trend is warming, about 0.4°C per decade.
August is one of the drier months in Hervey Bay, averaging 47 mm of rainfall. The wettest August on record was 2007 with 217 mm, while the driest was 2013 at 1 mm.
Relative humidity in Hervey Bay during August averages 69%. The most humid August was 1999 at 76%, and the least humid was 2001 at 61%.
August receives about 4.6 kWh/m²/day of solar energy in Hervey Bay. The sunniest Augusts were 2004, 2013 and 2017 at 5.1 kWh/m²/day, and the cloudiest were 2002 and 2014 at 4.1.
Average wind speed in Hervey Bay during August is 3.6 m/s. The windiest Augusts were 1982 and 2014 at 4.4 m/s, while the calmest was 2022 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.1°C | 18.6°C | 19.0°C | 19.1°C | 19.6°C | +1.5°C |
| Avg High | 20.5°C | 21.0°C | 21.4°C | 21.7°C | 22.0°C | +1.5°C |
| Avg Low | 15.8°C | 16.3°C | 16.5°C | 16.5°C | 17.2°C | +1.4°C |
| Avg Rain | 59 mm | 37 mm | 48 mm | 53 mm | 31 mm | -28 mm |
August temperatures in Hervey Bay have risen by about 1.5°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 9.5°C (1989) to a record high of 29.1°C (2009).
Rainfall in August is one of the drier months, averaging 47 mm, with a wettest year of 217 mm.
A good time to visit Hervey Bay
August is a good time to visit Hervey Bay, with days averaging 21.3°C and nights around 16.4°C (mean 18.9°C, cooler than Hervey Bay's yearly average) and moderate rainfall. October and September 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 | 21.5°C | 19.1°C | 16.7°C | 25.4°C | 12.0°C | 46 mm | 70% | 3.8 m/s | 4.4 |
| 2024 🔥 | 23.0°C | 20.8°C | 18.5°C | 26.4°C | 15.2°C | 76 mm | 76% | 3.7 m/s | 4.4 |
| 2023 | 22.8°C | 20.6°C | 18.4°C | 26.9°C | 14.7°C | 17 mm | 69% | 3.8 m/s | 4.5 |
| 2022 | 20.8°C | 18.4°C | 16.1°C | 22.2°C | 12.2°C | 9 mm | 70% | 3 m/s | 4.4 |
| 2021 | 22.1°C | 19.5°C | 16.8°C | 25.7°C | 12.3°C | 12 mm | 68% | 3.1 m/s | 4.8 |
| 2020 | 21.9°C | 19.1°C | 16.4°C | 25.5°C | 13.0°C | 27 mm | 64% | 3.4 m/s | 4.9 |
| 2019 | 22.0°C | 19.3°C | 16.6°C | 24.5°C | 12.0°C | 15 mm | 64% | 3.3 m/s | 4.7 |
| 2018 | 22.1°C | 18.9°C | 15.8°C | 24.9°C | 12.4°C | 15 mm | 62% | 3.2 m/s | 5 |
| 2017 | 23.1°C | 20.1°C | 17.2°C | 26.3°C | 13.7°C | 5 mm | 65% | 3.4 m/s | 5.1 |
| 2016 | 21.5°C | 19.3°C | 17.0°C | 24.5°C | 12.3°C | 27 mm | 69% | 3.7 m/s | 4.5 |
| 2015 | 21.9°C | 19.3°C | 16.7°C | 24.9°C | 11.4°C | 53 mm | 71% | 3.3 m/s | 4.6 |
| 2014 | 20.9°C | 18.8°C | 16.6°C | 24.0°C | 13.3°C | 168 mm | 72% | 4.4 m/s | 4.1 |
| 2013 | 22.7°C | 19.7°C | 16.7°C | 25.6°C | 12.6°C | 1 mm | 66% | 3.1 m/s | 5.1 |
| 2012 | 20.6°C | 18.1°C | 15.6°C | 23.3°C | 11.6°C | 6 mm | 67% | 3.1 m/s | 5 |
| 2011 | 20.9°C | 18.8°C | 16.6°C | 22.4°C | 13.3°C | 127 mm | 71% | 3.8 m/s | 4.2 |
| 2010 | 21.3°C | 18.7°C | 16.1°C | 24.0°C | 11.5°C | 113 mm | 67% | 3.5 m/s | 4.2 |
| 2009 | 23.0°C | 20.3°C | 17.7°C | 29.1°C | 14.3°C | 5 mm | 72% | 3.5 m/s | 5 |
| 2008 | 19.1°C | 16.7°C | 14.3°C | 22.1°C | 10.0°C | 6 mm | 68% | 3.2 m/s | 4.8 |
| 2007 🌧️ | 21.4°C | 19.2°C | 16.9°C | 24.6°C | 13.1°C | 217 mm | 73% | 3.7 m/s | 4.2 |
| 2006 | 21.5°C | 19.2°C | 16.8°C | 24.8°C | 13.0°C | 26 mm | 70% | 3.6 m/s | 4.8 |
| 2005 | 21.2°C | 19.2°C | 17.2°C | 22.7°C | 10.8°C | 31 mm | 67% | 4.1 m/s | 4.3 |
| 2004 | 22.1°C | 19.1°C | 16.1°C | 25.1°C | 13.1°C | 16 mm | 62% | 3.5 m/s | 5.1 |
| 2003 | 21.6°C | 19.2°C | 16.9°C | 25.3°C | 10.6°C | 44 mm | 70% | 4 m/s | 4.3 |
| 2002 | 21.1°C | 18.9°C | 16.7°C | 23.4°C | 13.1°C | 94 mm | 70% | 4.2 m/s | 4.1 |
| 2001 | 21.7°C | 18.8°C | 15.8°C | 24.9°C | 12.9°C | 11 mm | 61% | 3.5 m/s | 4.8 |
| 2000 | 21.5°C | 18.9°C | 16.3°C | 25.2°C | 12.8°C | 29 mm | 67% | 3.9 m/s | 4.7 |
| 1999 | 19.8°C | 18.0°C | 16.2°C | 21.9°C | 11.2°C | 53 mm | 76% | 3.9 m/s | 4.3 |
| 1998 | 22.1°C | 20.1°C | 18.0°C | 24.1°C | 11.7°C | 105 mm | 75% | 4.2 m/s | 4.2 |
| 1997 | 20.8°C | 18.6°C | 16.5°C | 23.7°C | 12.3°C | 19 mm | 66% | 3.6 m/s | 4.6 |
| 1996 | 21.4°C | 18.8°C | 16.2°C | 23.6°C | 10.1°C | 27 mm | 72% | 3.7 m/s | 4.4 |
| 1995 | 20.9°C | 18.8°C | 16.8°C | 23.7°C | 11.1°C | 33 mm | 68% | 3.8 m/s | 4.3 |
| 1994 | 20.4°C | 18.2°C | 16.0°C | 23.5°C | 11.1°C | 19 mm | 68% | 3.8 m/s | 4.5 |
| 1993 | 21.6°C | 19.2°C | 16.9°C | 24.2°C | 10.6°C | 70 mm | 68% | 3.7 m/s | 4.6 |
| 1992 | 20.5°C | 18.0°C | 15.5°C | 23.9°C | 10.9°C | 28 mm | 70% | 3.5 m/s | 4.5 |
| 1991 | 22.4°C | 19.5°C | 16.7°C | 25.3°C | 12.4°C | 7 mm | 63% | 3.6 m/s | 4.8 |
| 1990 ❄️ | 19.7°C | 16.7°C | 13.7°C | 22.8°C | 10.7°C | 10 mm | 67% | 3.8 m/s | 4.9 |
| 1989 | 19.2°C | 16.9°C | 14.6°C | 22.3°C | 9.5°C | 77 mm | 69% | 3.3 m/s | 4.9 |
| 1988 | 20.5°C | 18.3°C | 16.2°C | 23.2°C | 9.9°C | 95 mm | 76% | 4.1 m/s | 4.2 |
| 1987 | 21.2°C | 19.0°C | 16.8°C | 24.1°C | 12.9°C | 67 mm | 72% | 3.7 m/s | 4.5 |
| 1986 | 20.4°C | 18.1°C | 15.7°C | 22.6°C | 11.5°C | 69 mm | 68% | 3.3 m/s | 4.3 |
| 1985 | 20.9°C | 18.5°C | 16.0°C | 24.0°C | 11.4°C | 50 mm | 70% | 3.2 m/s | 4.5 |
| 1984 | 20.9°C | 17.9°C | 14.9°C | 23.9°C | 10.7°C | 31 mm | 67% | 3.1 m/s | 4.6 |
| 1983 | 19.6°C | 17.6°C | 15.6°C | 21.0°C | 11.5°C | 59 mm | 73% | 3.7 m/s | — |
| 1982 | 20.4°C | 18.6°C | 16.9°C | 22.9°C | 12.1°C | 52 mm | 70% | 4.4 m/s | — |
| 1981 | 21.5°C | 18.3°C | 15.2°C | 25.0°C | 11.9°C | 30 mm | 61% | 3.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 21.3°C with lows near 16.4°C (mean 18.9°C), based on 45 years of NASA POWER data.
August averages 47 mm of rainfall in Hervey Bay, one of the drier months. The wettest on record was 217 mm in 2007.
The hottest August reached 29.1°C in 2009. The coldest dipped to 9.5°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.5°C. Daytime highs moved from 20.7°C to 22°C and overnight lows from 15.7°C to 17.3°C over the same span.
August is one of the cooler months of the year in Hervey Bay and one of the drier months, so plan for around 21.3°C daytime highs and 16.4°C at night.
Not quite — August is the 2nd coolest month in Hervey Bay, averaging 18.9°C.
For August in Hervey Bay, pack light layers you can adjust through the day, with typical highs of 21.3°C and lows of 16.4°C.
Relative humidity in August averages 69% — moderately humid.
Average wind speed in August is 3.6 m/s. The windiest August on record averaged 4.4 m/s (1982).
The wettest August on record was 2007 with 217 mm. On average, August sees 47 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 Hervey Bay 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.
