August is one of the warmer months of the year in Melbourne, with average highs near 30.3°C and lows around 25.2°C (mean 27.8°C). It is a relatively wet time of year, averaging 196 mm of rainfall and 82% relative humidity across the period.
August is one of the warmer months of the year in Melbourne. Across 45 years of records, the warmest August in Melbourne was 2023 — when the month averaged 29.3°C — while the coldest was 1994 at 26.7°C. Typical August days reach 30.3°C with nights near 25.2°C. The long-term trend is warming, about 0.3°C per decade.
August is a relatively wet time of year in Melbourne, averaging 196 mm of rainfall. The wettest August on record was 2008 with 483 mm, while the driest was 2007 at 72 mm.
Relative humidity in Melbourne during August averages 82%. The most humid August was 2008 at 87%, and the least humid was 1987 at 76%.
August receives about 5.7 kWh/m²/day of solar energy in Melbourne. The sunniest August was 2018 at 6.2 kWh/m²/day, and the cloudiest were 1985 and 2008 at 5.
Average wind speed in Melbourne during August is 2.3 m/s. The windiest Augusts were 1995 and 2008 at 3 m/s, while the calmest was 1990 at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.4°C | 27.5°C | 27.7°C | 27.9°C | 28.7°C | +1.3°C |
| Avg High | 30.0°C | 30.0°C | 30.2°C | 30.5°C | 31.3°C | +1.3°C |
| Avg Low | 24.8°C | 25.0°C | 25.1°C | 25.4°C | 26.0°C | +1.2°C |
| Avg Rain | 175 mm | 207 mm | 198 mm | 200 mm | 197 mm | +21 mm |
August temperatures in Melbourne have risen by about 1.5°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 22°C (1984) to a record high of 35.2°C (2006).
Rainfall in August is a relatively wet time of year, averaging 196 mm, with a wettest year of 483 mm.
A quieter season to visit Melbourne
If your dates are flexible, the more temperate months of November and April tend to be the most comfortable for visiting Melbourne. That said, August — with days averaging 30.3°C and nights around 25.2°C (mean 27.8°C) and higher rainfall (196 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.5°C | 28.8°C | 26.1°C | 34.0°C | 24.7°C | 311 mm | 82% | 2.1 m/s | 5.8 |
| 2024 | 31.8°C | 29.0°C | 26.2°C | 34.9°C | 24.4°C | 172 mm | 79% | 2.7 m/s | 5.5 |
| 2023 🔥 | 32.3°C | 29.3°C | 26.3°C | 34.6°C | 23.9°C | 156 mm | 80% | 2.5 m/s | 6 |
| 2022 | 31.4°C | 28.6°C | 25.8°C | 33.7°C | 23.2°C | 152 mm | 80% | 2 m/s | 6 |
| 2021 | 30.3°C | 28.0°C | 25.6°C | 32.3°C | 24.4°C | 183 mm | 85% | 2.3 m/s | 5.5 |
| 2020 | 30.7°C | 28.3°C | 25.9°C | 32.3°C | 24.3°C | 207 mm | 84% | 2.3 m/s | 5.7 |
| 2019 | 30.3°C | 27.8°C | 25.3°C | 31.9°C | 23.9°C | 258 mm | 86% | 2.2 m/s | 5.6 |
| 2018 | 29.9°C | 27.5°C | 25.1°C | 31.3°C | 23.6°C | 201 mm | 85% | 2.2 m/s | 6.2 |
| 2017 | 30.5°C | 27.9°C | 25.4°C | 32.0°C | 24.0°C | 195 mm | 85% | 2.4 m/s | 5.9 |
| 2016 | 29.9°C | 27.8°C | 25.7°C | 31.7°C | 24.3°C | 256 mm | 85% | 2.5 m/s | 5.8 |
| 2015 | 30.2°C | 27.7°C | 25.2°C | 31.9°C | 23.4°C | 305 mm | 85% | 1.9 m/s | 5.5 |
| 2014 | 31.0°C | 28.1°C | 25.3°C | 32.6°C | 23.8°C | 113 mm | 80% | 2.1 m/s | 5.9 |
| 2013 | 30.1°C | 27.6°C | 25.1°C | 31.4°C | 24.1°C | 80 mm | 82% | 2.4 m/s | 6 |
| 2012 | 30.7°C | 27.8°C | 25.0°C | 34.0°C | 23.7°C | 243 mm | 81% | 2.4 m/s | 5.2 |
| 2011 | 31.2°C | 28.4°C | 25.6°C | 33.6°C | 24.7°C | 193 mm | 82% | 2.5 m/s | 5.6 |
| 2010 | 31.5°C | 28.7°C | 26.0°C | 33.9°C | 24.5°C | 156 mm | 79% | 2.4 m/s | 5.7 |
| 2009 | 30.4°C | 28.0°C | 25.6°C | 31.6°C | 24.0°C | 133 mm | 83% | 2.1 m/s | 6.1 |
| 2008 🌧️ | 29.3°C | 27.0°C | 24.6°C | 31.2°C | 22.7°C | 483 mm | 87% | 3 m/s | 5 |
| 2007 | 30.9°C | 28.1°C | 25.3°C | 32.6°C | 23.9°C | 72 mm | 80% | 2.1 m/s | 6.1 |
| 2006 | 31.3°C | 28.2°C | 25.2°C | 35.2°C | 24.1°C | 161 mm | 78% | 2.3 m/s | 5.7 |
| 2005 | 31.0°C | 28.5°C | 26.0°C | 32.7°C | 24.3°C | 148 mm | 82% | 2 m/s | 6.1 |
| 2004 | 30.0°C | 27.6°C | 25.2°C | 31.7°C | 24.6°C | 236 mm | 85% | 2 m/s | 5.1 |
| 2003 | 29.4°C | 27.2°C | 25.0°C | 30.9°C | 23.6°C | 229 mm | 86% | 2.3 m/s | 5.3 |
| 2002 | 29.7°C | 27.3°C | 24.9°C | 31.4°C | 22.5°C | 236 mm | 83% | 2.4 m/s | 5.6 |
| 2001 | 29.8°C | 27.3°C | 24.7°C | 31.4°C | 22.8°C | 176 mm | 83% | 1.9 m/s | 5.8 |
| 2000 | 30.1°C | 27.3°C | 24.5°C | 31.6°C | 23.0°C | 102 mm | 80% | 2.5 m/s | 5.8 |
| 1999 | 30.7°C | 27.9°C | 25.1°C | 33.1°C | 23.7°C | 193 mm | 83% | 2.4 m/s | 5.8 |
| 1998 | 30.6°C | 28.1°C | 25.7°C | 33.0°C | 23.9°C | 234 mm | 83% | 2.2 m/s | 5.5 |
| 1997 | 30.1°C | 27.5°C | 24.9°C | 31.4°C | 22.6°C | 232 mm | 83% | 1.9 m/s | 5.8 |
| 1996 | 29.5°C | 27.0°C | 24.6°C | 31.6°C | 22.9°C | 146 mm | 82% | 2.1 m/s | 5.8 |
| 1995 | 29.8°C | 27.6°C | 25.4°C | 32.8°C | 23.5°C | 356 mm | 85% | 3 m/s | 5.2 |
| 1994 ❄️ | 29.0°C | 26.7°C | 24.5°C | 30.5°C | 22.6°C | 215 mm | 85% | 2.1 m/s | 5.8 |
| 1993 | 31.4°C | 28.2°C | 25.0°C | 34.8°C | 23.5°C | 130 mm | 76% | 2.4 m/s | 5.7 |
| 1992 | 29.5°C | 27.2°C | 24.8°C | 31.2°C | 23.1°C | 185 mm | 84% | 2 m/s | 5.6 |
| 1991 | 29.8°C | 27.4°C | 24.9°C | 31.3°C | 24.1°C | 174 mm | 85% | 2.1 m/s | 5.8 |
| 1990 | 29.9°C | 27.4°C | 24.9°C | 31.3°C | 23.4°C | 201 mm | 83% | 1.6 m/s | 5.7 |
| 1989 | 30.6°C | 27.8°C | 25.0°C | 34.6°C | 23.7°C | 185 mm | 79% | 2 m/s | 5.9 |
| 1988 | 29.4°C | 27.1°C | 24.7°C | 31.0°C | 23.3°C | 164 mm | 84% | 2.3 m/s | 5.3 |
| 1987 | 31.5°C | 28.3°C | 25.1°C | 33.2°C | 22.2°C | 79 mm | 76% | 2.3 m/s | 5.9 |
| 1986 | 29.6°C | 27.0°C | 24.5°C | 30.9°C | 23.3°C | 146 mm | 83% | 2.2 m/s | 5.7 |
| 1985 | 29.5°C | 27.3°C | 25.0°C | 31.1°C | 23.7°C | 209 mm | 83% | 2.4 m/s | 5 |
| 1984 | 30.0°C | 27.0°C | 24.1°C | 32.5°C | 22.0°C | 155 mm | 79% | 1.9 m/s | 5.4 |
| 1983 | 29.7°C | 27.3°C | 25.0°C | 31.5°C | 24.0°C | 224 mm | 84% | 2 m/s | — |
| 1982 | 29.4°C | 26.9°C | 24.5°C | 31.4°C | 23.7°C | 155 mm | 83% | 2.2 m/s | — |
| 1981 | 30.2°C | 27.6°C | 25.1°C | 33.5°C | 23.2°C | 260 mm | 81% | 2.9 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 30.3°C with lows near 25.2°C (mean 27.8°C), based on 45 years of NASA POWER data.
August averages 196 mm of rainfall in Melbourne, a relatively wet time of year. The wettest on record was 483 mm in 2008.
The hottest August reached 35.2°C in 2006. The coldest dipped to 22°C in 1984.
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 29.8°C to 31.5°C and overnight lows from 24.7°C to 26°C over the same span.
August is one of the warmer months of the year in Melbourne and a relatively wet time of year, so plan for around 30.3°C daytime highs and 25.2°C at night.
Not quite — August is the 12th coolest month in Melbourne, averaging 27.8°C.
For August in Melbourne, pack light, breathable clothing and sun protection, with typical highs of 30.3°C and lows of 25.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 82% — quite humid.
Average wind speed in August is 2.3 m/s. The windiest August on record averaged 3 m/s (1995).
The wettest August on record was 2008 with 483 mm. On average, August sees 196 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 Melbourne 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.
