August is one of the cooler months of the year in Ouyen, with average highs near 17.2°C and lows around 5.2°C (mean 11.2°C). It is about average for rainfall, averaging 29 mm of rainfall and 69% relative humidity across the period.
August is one of the cooler months of the year in Ouyen. Across 45 years of records, the warmest August in Ouyen was 2024 — when the month averaged 14°C — while the coldest was 1989 at 9.1°C. Typical August days reach 17.2°C with nights near 5.2°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Ouyen, averaging 29 mm of rainfall. The wettest August on record was 1985 with 74 mm, while the driest was 2007 at 3 mm.
Relative humidity in Ouyen during August averages 69%. The most humid August was 1989 at 81%, and the least humid was 1982 at 56%.
August receives about 3.4 kWh/m²/day of solar energy in Ouyen. The sunniest Augusts were 2006, 2007 and 2014 at 3.9 kWh/m²/day, and the cloudiest was 2010 at 3.1.
Average wind speed in Ouyen during August is 2.9 m/s. The windiest August was 1991 at 3.7 m/s, while the calmest were 1982 and 2006 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.0°C | 10.9°C | 11.3°C | 11.1°C | 12.1°C | +1.1°C |
| Avg High | 16.8°C | 16.9°C | 17.6°C | 17.0°C | 18.1°C | +1.3°C |
| Avg Low | 5.2°C | 4.8°C | 4.9°C | 5.3°C | 6.0°C | +0.8°C |
| Avg Rain | 42 mm | 30 mm | 25 mm | 25 mm | 19 mm | -23 mm |
August temperatures in Ouyen have risen by about 1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of -0.4°C (2003) to a record high of 28°C (1982).
Rainfall in August is about average for rainfall, averaging 29 mm, with a wettest year of 74 mm.
A quieter season to visit Ouyen
If your dates are flexible, the more temperate months of March and December tend to be the most comfortable for visiting Ouyen. That said, August — with days averaging 17.2°C and nights around 5.2°C (mean 11.2°C) and low rainfall (29 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 | 17.4°C | 11.5°C | 5.6°C | 21.8°C | 1.3°C | 14 mm | 67% | 2.7 m/s | 3.4 |
| 2024 🔥 | 20.6°C | 14.0°C | 7.4°C | 27.4°C | 1.8°C | 5 mm | 62% | 2.9 m/s | 3.6 |
| 2023 | 18.4°C | 12.1°C | 5.7°C | 25.8°C | 1.4°C | 19 mm | 69% | 2.3 m/s | 3.3 |
| 2022 | 17.5°C | 12.0°C | 6.5°C | 23.9°C | 2.8°C | 40 mm | 69% | 3 m/s | 3.2 |
| 2021 | 18.3°C | 12.2°C | 6.0°C | 25.8°C | 2.6°C | 7 mm | 66% | 2.7 m/s | 3.5 |
| 2020 | 16.4°C | 10.6°C | 4.8°C | 23.7°C | 0.2°C | 28 mm | 69% | 2.8 m/s | 3.5 |
| 2019 | 16.7°C | 10.5°C | 4.4°C | 23.1°C | 1.0°C | 11 mm | 66% | 3.1 m/s | 3.5 |
| 2018 | 17.4°C | 11.3°C | 5.1°C | 23.2°C | 0.5°C | 10 mm | 61% | 3.4 m/s | 3.5 |
| 2017 | 16.6°C | 10.7°C | 4.8°C | 23.7°C | 0.8°C | 40 mm | 68% | 3 m/s | 3.4 |
| 2016 | 18.0°C | 11.8°C | 5.6°C | 24.4°C | 1.9°C | 26 mm | 65% | 2.7 m/s | 3.4 |
| 2015 | 16.1°C | 10.7°C | 5.3°C | 22.0°C | 1.2°C | 11 mm | 71% | 2.5 m/s | 3.3 |
| 2014 | 17.4°C | 11.0°C | 4.7°C | 24.5°C | 0.8°C | 9 mm | 69% | 2.3 m/s | 3.9 |
| 2013 | 17.4°C | 11.8°C | 6.3°C | 24.9°C | 1.4°C | 25 mm | 73% | 3.1 m/s | 3.3 |
| 2012 | 16.8°C | 11.2°C | 5.5°C | 22.3°C | 1.8°C | 18 mm | 68% | 3.3 m/s | 3.3 |
| 2011 | 18.2°C | 12.5°C | 6.7°C | 26.0°C | 2.3°C | 39 mm | 72% | 2.3 m/s | 3.4 |
| 2010 | 15.1°C | 9.9°C | 4.6°C | 20.2°C | 0.2°C | 57 mm | 76% | 3.3 m/s | 3.1 |
| 2009 | 19.0°C | 12.7°C | 6.3°C | 25.3°C | 1.7°C | 12 mm | 63% | 3.2 m/s | 3.5 |
| 2008 | 15.2°C | 9.6°C | 4.1°C | 20.5°C | 1.2°C | 35 mm | 73% | 2.9 m/s | 3.2 |
| 2007 | 18.6°C | 12.0°C | 5.4°C | 27.2°C | 0.4°C | 3 mm | 67% | 2.8 m/s | 3.9 |
| 2006 | 18.9°C | 11.9°C | 5.0°C | 25.8°C | 1.5°C | 4 mm | 63% | 2.2 m/s | 3.9 |
| 2005 | 18.4°C | 11.7°C | 5.0°C | 26.1°C | 1.3°C | 31 mm | 65% | 3.1 m/s | 3.5 |
| 2004 | 17.6°C | 11.5°C | 5.4°C | 27.4°C | 0.8°C | 38 mm | 65% | 2.7 m/s | 3.4 |
| 2003 | 16.1°C | 10.0°C | 4.0°C | 22.9°C | -0.4°C | 47 mm | 70% | 3 m/s | 3.3 |
| 2002 | 18.2°C | 11.3°C | 4.4°C | 24.0°C | 0.3°C | 14 mm | 61% | 2.6 m/s | 3.5 |
| 2001 | 17.9°C | 11.6°C | 5.3°C | 25.2°C | 3.0°C | 34 mm | 65% | 3.4 m/s | 3.3 |
| 2000 | 16.4°C | 10.3°C | 4.1°C | 20.7°C | 1.0°C | 26 mm | 73% | 2.3 m/s | 3.3 |
| 1999 | 18.0°C | 11.7°C | 5.4°C | 26.6°C | 0.9°C | 41 mm | 71% | 2.8 m/s | 3.5 |
| 1998 | 18.1°C | 11.8°C | 5.4°C | 23.6°C | 2.2°C | 11 mm | 68% | 2.3 m/s | 3.5 |
| 1997 | 16.6°C | 10.5°C | 4.5°C | 23.1°C | 0.8°C | 42 mm | 67% | 2.7 m/s | 3.3 |
| 1996 | 16.1°C | 10.6°C | 5.1°C | 21.6°C | 1.9°C | 37 mm | 75% | 2.9 m/s | 3.3 |
| 1995 | 18.0°C | 11.4°C | 4.8°C | 26.1°C | 0.7°C | 15 mm | 72% | 2.7 m/s | 3.6 |
| 1994 | 16.4°C | 9.9°C | 3.4°C | 23.8°C | -0.1°C | 6 mm | 66% | 2.5 m/s | 3.7 |
| 1993 | 18.9°C | 12.3°C | 5.7°C | 23.9°C | 0.8°C | 25 mm | 63% | 2.9 m/s | 3.7 |
| 1992 | 15.2°C | 9.8°C | 4.3°C | 21.7°C | 1.4°C | 56 mm | 71% | 3.2 m/s | 3.4 |
| 1991 | 16.0°C | 10.5°C | 5.1°C | 20.5°C | 1.0°C | 32 mm | 73% | 3.7 m/s | 3.4 |
| 1990 | 15.3°C | 10.0°C | 4.6°C | 18.3°C | 0.2°C | 40 mm | 77% | 3.5 m/s | 3.4 |
| 1989 ❄️ | 14.0°C | 9.1°C | 4.2°C | 18.8°C | 0.2°C | 37 mm | 81% | 2.9 m/s | 3.3 |
| 1988 | 17.7°C | 11.7°C | 5.7°C | 25.4°C | 2.3°C | 8 mm | 69% | 3.1 m/s | 3.4 |
| 1987 | 16.4°C | 10.9°C | 5.5°C | 22.2°C | 2.6°C | 47 mm | 75% | 2.8 m/s | 3.4 |
| 1986 | 16.0°C | 10.3°C | 4.5°C | 21.8°C | 1.3°C | 56 mm | 75% | 2.8 m/s | 3.4 |
| 1985 🌧️ | 16.5°C | 10.7°C | 4.9°C | 22.6°C | -0.2°C | 74 mm | 70% | 3 m/s | 3.2 |
| 1984 | 16.6°C | 11.2°C | 5.7°C | 22.3°C | 2.5°C | 61 mm | 72% | 3.4 m/s | 3.5 |
| 1983 | 17.5°C | 11.6°C | 5.7°C | 22.5°C | 0.5°C | 45 mm | 73% | 2.9 m/s | — |
| 1982 | 21.0°C | 13.4°C | 5.8°C | 28.0°C | 1.5°C | 7 mm | 56% | 2.2 m/s | — |
| 1981 | 15.3°C | 10.0°C | 4.6°C | 20.7°C | 0.5°C | 43 mm | 75% | 3.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 17.2°C with lows near 5.2°C (mean 11.2°C), based on 45 years of NASA POWER data.
August averages 29 mm of rainfall in Ouyen, about average for rainfall. The wettest on record was 74 mm in 1985.
The hottest August reached 28°C in 1982. The coldest dipped to -0.4°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1°C. Daytime highs moved from 17.4°C to 18.4°C and overnight lows from 5.3°C to 6.2°C over the same span.
August is one of the cooler months of the year in Ouyen and about average for rainfall, so plan for around 17.2°C daytime highs and 5.2°C at night.
Not quite — August is the 3rd coolest month in Ouyen, averaging 11.2°C.
For August in Ouyen, pack warm layers and a jacket for chilly mornings, with typical highs of 17.2°C and lows of 5.2°C.
Relative humidity in August averages 69% — moderately humid.
Average wind speed in August is 2.9 m/s. The windiest August on record averaged 3.7 m/s (1991).
The wettest August on record was 1985 with 74 mm. On average, August sees 29 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 Ouyen 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.
