August is one of the warmer months of the year in Milton, with average highs near 30.8°C and lows around 25.1°C (mean 28°C). It is a relatively wet time of year, averaging 166 mm of rainfall and 78% relative humidity across the period.
August is one of the warmer months of the year in Milton. Across 45 years of records, the warmest August in Milton was 2023 — when the month averaged 31°C — while the coldest were 1992 and 1994 at 26.2°C. Typical August days reach 30.8°C with nights near 25.1°C. The long-term trend is warming, about 0.3°C per decade.
August is a relatively wet time of year in Milton, averaging 166 mm of rainfall. The wettest August on record was 2017 with 300 mm, while the driest was 1989 at 56 mm.
Relative humidity in Milton during August averages 78%. The most humid August was 2003 at 85%, and the least humid was 1990 at 68%.
August receives about 5.7 kWh/m²/day of solar energy in Milton. The sunniest August was 2023 at 6.8 kWh/m²/day, and the cloudiest was 2022 at 4.9.
Average wind speed in Milton during August is 2.2 m/s. The windiest August was 2008 at 3 m/s, while the calmest was 2022 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.3°C | 27.7°C | 27.9°C | 28.1°C | 28.8°C | +1.5°C |
| Avg High | 30.0°C | 30.7°C | 30.8°C | 30.9°C | 31.9°C | +1.9°C |
| Avg Low | 24.7°C | 24.8°C | 25.0°C | 25.3°C | 25.8°C | +1.1°C |
| Avg Rain | 184 mm | 144 mm | 154 mm | 191 mm | 157 mm | -27 mm |
August temperatures in Milton have risen by about 1.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 17.9°C (2004) to a record high of 37.5°C (2023).
Rainfall in August is a relatively wet time of year, averaging 166 mm, with a wettest year of 300 mm.
A good time to visit Milton
August is a good time to visit Milton, with days averaging 30.8°C and nights around 25.1°C (mean 28°C, warmer than Milton's yearly average) and higher rainfall. October and May 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 | 31.2°C | 28.1°C | 25.1°C | 34.2°C | 22.1°C | 147 mm | 76% | 2 m/s | 5.7 |
| 2024 | 34.1°C | 30.0°C | 26.0°C | 36.3°C | 23.1°C | 70 mm | 68% | 2.5 m/s | 6.7 |
| 2023 🔥 | 35.0°C | 31.0°C | 27.1°C | 37.5°C | 24.3°C | 75 mm | 69% | 2.3 m/s | 6.8 |
| 2022 | 30.0°C | 27.6°C | 25.2°C | 32.9°C | 24.1°C | 210 mm | 81% | 1.8 m/s | 4.9 |
| 2021 | 30.4°C | 28.0°C | 25.6°C | 32.4°C | 23.6°C | 247 mm | 82% | 2.5 m/s | 5.4 |
| 2020 | 30.9°C | 28.3°C | 25.7°C | 33.2°C | 24.2°C | 192 mm | 79% | 2.5 m/s | 5.7 |
| 2019 | 31.8°C | 28.8°C | 25.8°C | 34.5°C | 21.6°C | 208 mm | 78% | 2.1 m/s | 5.7 |
| 2018 | 29.9°C | 27.4°C | 24.8°C | 32.1°C | 22.8°C | 202 mm | 81% | 2.2 m/s | 5.5 |
| 2017 🌧️ | 30.2°C | 27.7°C | 25.1°C | 32.3°C | 21.5°C | 300 mm | 81% | 2.3 m/s | 5.3 |
| 2016 | 30.5°C | 28.1°C | 25.6°C | 32.5°C | 23.8°C | 248 mm | 82% | 2.5 m/s | 5.6 |
| 2015 | 31.9°C | 28.6°C | 25.3°C | 34.8°C | 19.7°C | 121 mm | 74% | 2.4 m/s | 6.2 |
| 2014 | 30.6°C | 27.8°C | 25.1°C | 33.9°C | 21.4°C | 60 mm | 81% | 2.1 m/s | 6.2 |
| 2013 | 29.5°C | 27.0°C | 24.5°C | 32.5°C | 21.1°C | 228 mm | 84% | 2.2 m/s | 5.2 |
| 2012 | 29.6°C | 27.3°C | 24.9°C | 33.0°C | 22.3°C | 249 mm | 82% | 2.7 m/s | 5.1 |
| 2011 | 33.3°C | 29.4°C | 25.6°C | 36.6°C | 21.4°C | 60 mm | 71% | 1.9 m/s | 6.5 |
| 2010 | 31.9°C | 29.0°C | 26.2°C | 37.2°C | 23.4°C | 232 mm | 77% | 2.7 m/s | 5.2 |
| 2009 | 29.9°C | 27.1°C | 24.3°C | 32.8°C | 19.0°C | 154 mm | 79% | 2.1 m/s | 5.5 |
| 2008 | 29.8°C | 27.1°C | 24.4°C | 33.0°C | 20.9°C | 208 mm | 81% | 3 m/s | 5.6 |
| 2007 | 32.9°C | 29.7°C | 26.5°C | 36.5°C | 24.1°C | 91 mm | 75% | 2.1 m/s | 5.9 |
| 2006 | 32.8°C | 29.6°C | 26.4°C | 35.9°C | 24.9°C | 126 mm | 72% | 2 m/s | 5.9 |
| 2005 | 30.0°C | 27.7°C | 25.3°C | 32.8°C | 23.6°C | 219 mm | 83% | 2.1 m/s | 5.3 |
| 2004 | 30.3°C | 27.2°C | 24.0°C | 34.2°C | 17.9°C | 174 mm | 76% | 2.3 m/s | 5.9 |
| 2003 | 29.4°C | 27.2°C | 25.0°C | 31.0°C | 23.4°C | 178 mm | 85% | 2.2 m/s | 5.3 |
| 2002 | 30.2°C | 27.4°C | 24.6°C | 33.1°C | 22.2°C | 141 mm | 78% | 2.2 m/s | 5.8 |
| 2001 | 29.5°C | 26.8°C | 24.1°C | 31.5°C | 19.8°C | 176 mm | 82% | 2.4 m/s | 5.3 |
| 2000 | 33.3°C | 29.4°C | 25.5°C | 37.0°C | 22.9°C | 78 mm | 68% | 2.2 m/s | 6.2 |
| 1999 | 31.8°C | 28.9°C | 26.0°C | 33.5°C | 22.8°C | 106 mm | 77% | 2.1 m/s | 6 |
| 1998 | 31.2°C | 28.1°C | 24.9°C | 34.5°C | 21.4°C | 127 mm | 78% | 2.3 m/s | 6.1 |
| 1997 | 30.0°C | 27.0°C | 24.1°C | 31.8°C | 19.5°C | 117 mm | 80% | 2.2 m/s | 6.1 |
| 1996 | 30.3°C | 27.4°C | 24.5°C | 32.5°C | 22.1°C | 196 mm | 77% | 2.1 m/s | 5.7 |
| 1995 | 31.4°C | 28.3°C | 25.2°C | 34.8°C | 23.7°C | 177 mm | 79% | 2.5 m/s | 6.1 |
| 1994 | 28.9°C | 26.2°C | 23.5°C | 30.1°C | 21.4°C | 120 mm | 82% | 2.4 m/s | 6 |
| 1993 | 32.4°C | 29.0°C | 25.6°C | 35.3°C | 23.2°C | 88 mm | 72% | 2.2 m/s | 5.9 |
| 1992 ❄️ | 28.5°C | 26.2°C | 23.8°C | 31.0°C | 18.7°C | 240 mm | 82% | 2.2 m/s | 5.4 |
| 1991 | 29.2°C | 27.0°C | 24.7°C | 31.3°C | 21.9°C | 176 mm | 82% | 1.9 m/s | 5.3 |
| 1990 | 33.1°C | 29.3°C | 25.5°C | 35.3°C | 22.5°C | 89 mm | 68% | 2.1 m/s | 6.4 |
| 1989 | 29.8°C | 27.0°C | 24.3°C | 33.0°C | 19.7°C | 56 mm | 81% | 2 m/s | 6.1 |
| 1988 | 29.3°C | 27.1°C | 24.8°C | 31.6°C | 23.3°C | 298 mm | 84% | 2.4 m/s | 5.1 |
| 1987 | 30.5°C | 27.8°C | 25.2°C | 32.5°C | 22.5°C | 251 mm | 82% | 2 m/s | 5.4 |
| 1986 | 30.8°C | 27.9°C | 24.9°C | 35.4°C | 18.5°C | 145 mm | 74% | 2.1 m/s | 5.3 |
| 1985 | 29.6°C | 27.1°C | 24.5°C | 32.4°C | 22.4°C | 193 mm | 82% | 2.7 m/s | 5.4 |
| 1984 | 29.1°C | 26.5°C | 23.9°C | 30.8°C | 22.8°C | 245 mm | 82% | 2 m/s | 5.3 |
| 1983 | 30.3°C | 27.7°C | 25.1°C | 32.7°C | 23.9°C | 120 mm | 81% | 2 m/s | — |
| 1982 | 29.9°C | 27.3°C | 24.8°C | 32.6°C | 22.4°C | 163 mm | 80% | 2.1 m/s | — |
| 1981 | 30.4°C | 27.7°C | 25.0°C | 33.3°C | 21.3°C | 185 mm | 76% | 2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 30.8°C with lows near 25.1°C (mean 28°C), based on 45 years of NASA POWER data.
August averages 166 mm of rainfall in Milton, a relatively wet time of year. The wettest on record was 300 mm in 2017.
The hottest August reached 37.5°C in 2023. The coldest dipped to 17.9°C in 2004.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.6°C. Daytime highs moved from 29.9°C to 32.1°C and overnight lows from 24.7°C to 25.8°C over the same span.
August is one of the warmer months of the year in Milton and a relatively wet time of year, so plan for around 30.8°C daytime highs and 25.1°C at night.
Not quite — August is the 11th coolest month in Milton, averaging 28°C.
For August in Milton, pack light, breathable clothing and sun protection, with typical highs of 30.8°C and lows of 25.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 78% — quite humid.
Average wind speed in August is 2.2 m/s. The windiest August on record averaged 3 m/s (2008).
The wettest August on record was 2017 with 300 mm. On average, August sees 166 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 Milton 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.
