August is one of the cooler months of the year in Barwon Heads, with average highs near 13.7°C and lows around 6.2°C (mean 10°C). It is about average for rainfall, averaging 61 mm of rainfall and 81% relative humidity across the period.
August is one of the cooler months of the year in Barwon Heads. Across 45 years of records, the warmest August in Barwon Heads was 2024 — when the month averaged 12.6°C — while the coldest were 1989 and 1992 at 8.5°C. Typical August days reach 13.7°C with nights near 6.2°C. The long-term trend is warming, about 0.3°C per decade.
August is about average for rainfall in Barwon Heads, averaging 61 mm of rainfall. The wettest August on record was 2010 with 112 mm, while the driest was 1982 at 19 mm.
Relative humidity in Barwon Heads during August averages 81%. The most humid August was 1989 at 86%, and the least humid was 1982 at 73%.
August receives about 2.8 kWh/m²/day of solar energy in Barwon Heads. The sunniest August was 1995 at 3.1 kWh/m²/day, and the cloudiest was 2013 at 2.5.
Average wind speed in Barwon Heads during August is 4.1 m/s. The windiest August was 1991 at 5.6 m/s, while the calmest was 2014 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.7°C | 9.6°C | 10.1°C | 9.9°C | 10.9°C | +1.2°C |
| Avg High | 13.4°C | 13.3°C | 14.0°C | 13.5°C | 14.8°C | +1.4°C |
| Avg Low | 5.9°C | 5.9°C | 6.3°C | 6.2°C | 7.0°C | +1.1°C |
| Avg Rain | 67 mm | 69 mm | 62 mm | 56 mm | 42 mm | -25 mm |
August temperatures in Barwon Heads have risen by about 1.3°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 1.5°C (1997) to a record high of 22.8°C (1982).
Rainfall in August is about average for rainfall, averaging 61 mm, with a wettest year of 112 mm.
A quieter season to visit Barwon Heads
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Barwon Heads. That said, August — with days averaging 13.7°C and nights around 6.2°C (mean 10°C) and moderate rainfall (61 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 | 14.8°C | 10.6°C | 6.4°C | 19.7°C | 3.8°C | 45 mm | 78% | 3.3 m/s | 3 |
| 2024 🔥 | 16.8°C | 12.6°C | 8.3°C | 21.8°C | 3.4°C | 24 mm | 73% | 4.1 m/s | 2.8 |
| 2023 | 15.4°C | 11.4°C | 7.4°C | 21.2°C | 2.6°C | 25 mm | 79% | 3.5 m/s | 2.8 |
| 2022 | 14.2°C | 10.6°C | 7.0°C | 18.1°C | 3.6°C | 79 mm | 81% | 4 m/s | 2.7 |
| 2021 | 14.4°C | 10.6°C | 6.9°C | 19.3°C | 3.8°C | 24 mm | 80% | 4.2 m/s | 2.9 |
| 2020 | 13.3°C | 9.7°C | 6.0°C | 18.7°C | 2.9°C | 56 mm | 83% | 4.3 m/s | 2.9 |
| 2019 | 13.4°C | 9.6°C | 5.7°C | 17.6°C | 2.9°C | 53 mm | 80% | 4.2 m/s | 2.7 |
| 2018 | 13.6°C | 9.7°C | 5.8°C | 17.6°C | 3.1°C | 37 mm | 74% | 4.7 m/s | 2.9 |
| 2017 | 13.4°C | 9.8°C | 6.3°C | 19.0°C | 2.9°C | 49 mm | 79% | 4.2 m/s | 2.8 |
| 2016 | 14.2°C | 10.3°C | 6.4°C | 19.2°C | 4.1°C | 52 mm | 80% | 3.9 m/s | 2.7 |
| 2015 | 12.7°C | 9.3°C | 5.9°C | 16.9°C | 2.5°C | 31 mm | 80% | 3.9 m/s | 2.6 |
| 2014 | 13.9°C | 10.2°C | 6.4°C | 19.2°C | 1.7°C | 36 mm | 82% | 2.9 m/s | 3 |
| 2013 | 13.7°C | 10.4°C | 7.2°C | 19.4°C | 3.0°C | 92 mm | 83% | 5.3 m/s | 2.5 |
| 2012 | 12.8°C | 9.4°C | 5.9°C | 16.9°C | 3.3°C | 66 mm | 83% | 4.8 m/s | 2.8 |
| 2011 | 15.2°C | 11.0°C | 6.9°C | 20.0°C | 3.6°C | 30 mm | 80% | 3.1 m/s | 2.7 |
| 2010 🌧️ | 12.1°C | 8.9°C | 5.8°C | 15.6°C | 3.2°C | 112 mm | 85% | 4.5 m/s | 2.6 |
| 2009 | 14.8°C | 10.9°C | 6.9°C | 19.0°C | 3.7°C | 62 mm | 77% | 5.3 m/s | 2.6 |
| 2008 | 12.3°C | 9.0°C | 5.6°C | 16.8°C | 2.5°C | 67 mm | 83% | 3.9 m/s | 2.6 |
| 2007 | 14.5°C | 10.6°C | 6.6°C | 21.6°C | 3.2°C | 38 mm | 81% | 4.1 m/s | 2.9 |
| 2006 | 15.0°C | 10.7°C | 6.3°C | 20.4°C | 4.0°C | 30 mm | 76% | 3.2 m/s | 3 |
| 2005 | 14.6°C | 10.6°C | 6.6°C | 20.4°C | 3.3°C | 75 mm | 77% | 4.9 m/s | 2.8 |
| 2004 | 14.0°C | 10.2°C | 6.4°C | 19.7°C | 3.1°C | 72 mm | 80% | 3.9 m/s | 2.7 |
| 2003 | 12.9°C | 9.1°C | 5.4°C | 16.1°C | 2.3°C | 87 mm | 79% | 4.6 m/s | 2.7 |
| 2002 | 14.0°C | 10.1°C | 6.2°C | 17.6°C | 3.8°C | 48 mm | 79% | 3.6 m/s | 2.8 |
| 2001 | 13.9°C | 10.2°C | 6.5°C | 18.8°C | 3.8°C | 93 mm | 79% | 4.7 m/s | 2.6 |
| 2000 | 14.0°C | 10.0°C | 6.1°C | 18.7°C | 3.9°C | 47 mm | 81% | 3.3 m/s | 2.9 |
| 1999 | 14.6°C | 10.8°C | 7.1°C | 21.6°C | 3.9°C | 76 mm | 83% | 3.7 m/s | 2.7 |
| 1998 | 14.1°C | 10.3°C | 6.5°C | 18.9°C | 4.5°C | 28 mm | 83% | 3 m/s | 2.9 |
| 1997 | 13.2°C | 9.4°C | 5.6°C | 17.8°C | 1.5°C | 62 mm | 79% | 4.1 m/s | 2.6 |
| 1996 | 12.6°C | 9.3°C | 5.9°C | 16.9°C | 2.2°C | 76 mm | 85% | 4.5 m/s | 2.6 |
| 1995 | 14.0°C | 9.9°C | 5.8°C | 19.7°C | 3.3°C | 52 mm | 83% | 4.2 m/s | 3.1 |
| 1994 | 12.6°C | 8.9°C | 5.2°C | 20.1°C | 1.8°C | 41 mm | 80% | 3.9 m/s | 3 |
| 1993 | 15.0°C | 10.8°C | 6.6°C | 19.5°C | 2.5°C | 83 mm | 79% | 4.3 m/s | 3 |
| 1992 | 12.1°C | 8.5°C | 5.0°C | 16.6°C | 2.6°C | 94 mm | 83% | 4.5 m/s | 2.7 |
| 1991 | 12.5°C | 8.9°C | 5.3°C | 15.8°C | 2.4°C | 97 mm | 83% | 5.6 m/s | 2.7 |
| 1990 | 11.9°C | 8.9°C | 5.9°C | 15.0°C | 3.4°C | 76 mm | 85% | 4.6 m/s | 2.7 |
| 1989 ❄️ | 12.0°C | 8.5°C | 5.0°C | 15.7°C | 2.7°C | 85 mm | 86% | 3.8 m/s | 2.8 |
| 1988 | 13.8°C | 10.2°C | 6.6°C | 18.8°C | 3.7°C | 62 mm | 82% | 4.2 m/s | 2.8 |
| 1987 | 13.3°C | 9.5°C | 5.7°C | 16.6°C | 3.7°C | 49 mm | 84% | 3.4 m/s | 2.9 |
| 1986 | 13.1°C | 9.4°C | 5.6°C | 17.6°C | 3.1°C | 46 mm | 84% | 3.6 m/s | 3 |
| 1985 | 12.8°C | 9.2°C | 5.6°C | 16.7°C | 2.0°C | 83 mm | 84% | 3.9 m/s | 2.7 |
| 1984 | 13.2°C | 9.8°C | 6.3°C | 16.4°C | 3.7°C | 86 mm | 84% | 4.8 m/s | 3 |
| 1983 | 13.6°C | 10.2°C | 6.7°C | 17.0°C | 1.9°C | 66 mm | 84% | 3.8 m/s | — |
| 1982 | 16.5°C | 11.3°C | 6.1°C | 22.8°C | 2.0°C | 19 mm | 73% | 3.2 m/s | — |
| 1981 | 12.6°C | 9.1°C | 5.6°C | 16.0°C | 2.5°C | 111 mm | 84% | 4.6 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 13.7°C with lows near 6.2°C (mean 10°C), based on 45 years of NASA POWER data.
August averages 61 mm of rainfall in Barwon Heads, about average for rainfall. The wettest on record was 112 mm in 2010.
The hottest August reached 22.8°C in 1982. The coldest dipped to 1.5°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.3°C. Daytime highs moved from 13.7°C to 15.1°C and overnight lows from 6.1°C to 7.2°C over the same span.
August is one of the cooler months of the year in Barwon Heads and about average for rainfall, so plan for around 13.7°C daytime highs and 6.2°C at night.
Not quite — August is the 2nd coolest month in Barwon Heads, averaging 10°C.
For August in Barwon Heads, pack warm layers and a jacket for chilly mornings, with typical highs of 13.7°C and lows of 6.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 81% — quite humid.
Average wind speed in August is 4.1 m/s. The windiest August on record averaged 5.6 m/s (1991).
The wettest August on record was 2010 with 112 mm. On average, August sees 61 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 Barwon Heads 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.
