August is one of the cooler months of the year in Port Pirie, with average highs near 16.9°C and lows around 6.1°C (mean 11.5°C). It is about average for rainfall, averaging 37 mm of rainfall and 69% relative humidity across the period.
August is one of the cooler months of the year in Port Pirie. Across 45 years of records, the warmest August in Port Pirie was 2024 — when the month averaged 14.8°C — while the coldest was 1989 at 9°C. Typical August days reach 16.9°C with nights near 6.1°C. The long-term trend is warming, about 0.3°C per decade.
August is about average for rainfall in Port Pirie, averaging 37 mm of rainfall. The wettest August on record was 1985 with 125 mm, while the driest was 2006 at 4 mm.
Relative humidity in Port Pirie during August averages 69%. The most humid August was 1989 at 80%, and the least humid was 1982 at 50%.
August receives about 3.6 kWh/m²/day of solar energy in Port Pirie. The sunniest Augusts were 2006 and 2007 at 4.1 kWh/m²/day, and the cloudiest was 2001 at 3.2.
Average wind speed in Port Pirie during August is 3.2 m/s. The windiest August was 2018 at 4 m/s, while the calmest were 2006 and 2014 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.1°C | 11.3°C | 11.6°C | 11.4°C | 12.6°C | +1.5°C |
| Avg High | 16.3°C | 16.6°C | 17.2°C | 16.8°C | 18.1°C | +1.8°C |
| Avg Low | 5.8°C | 6.0°C | 6.0°C | 5.9°C | 7.0°C | +1.2°C |
| Avg Rain | 49 mm | 39 mm | 37 mm | 34 mm | 23 mm | -26 mm |
August temperatures in Port Pirie have risen by about 1.2°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 0.1°C (1989) to a record high of 28.9°C (2024).
Rainfall in August is about average for rainfall, averaging 37 mm, with a wettest year of 125 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.4°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A quieter season to visit Port Pirie
If your dates are flexible, the more temperate months of March and December tend to be the most comfortable for visiting Port Pirie. That said, August — with days averaging 16.9°C and nights around 6.1°C (mean 11.5°C) and moderate rainfall (37 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 | 17.7°C | 12.0°C | 6.2°C | 26.4°C | 2.1°C | 19 mm | 66% | 3.3 m/s | 3.6 |
| 2024 🔥 | 20.5°C | 14.8°C | 9.1°C | 28.9°C | 4.2°C | 17 mm | 61% | 3.4 m/s | 3.7 |
| 2023 | 19.6°C | 13.5°C | 7.5°C | 27.0°C | 2.8°C | 22 mm | 65% | 2.8 m/s | 3.7 |
| 2022 | 16.7°C | 11.7°C | 6.7°C | 23.6°C | 3.2°C | 38 mm | 71% | 3.6 m/s | 3.4 |
| 2021 | 17.6°C | 12.1°C | 6.6°C | 25.2°C | 3.3°C | 15 mm | 67% | 2.9 m/s | 3.9 |
| 2020 | 16.7°C | 11.3°C | 6.0°C | 25.1°C | 2.0°C | 26 mm | 66% | 3.2 m/s | 3.5 |
| 2019 | 17.0°C | 11.0°C | 5.0°C | 23.2°C | 1.0°C | 13 mm | 65% | 3.2 m/s | 3.8 |
| 2018 | 17.5°C | 11.9°C | 6.4°C | 25.1°C | 1.6°C | 32 mm | 62% | 4 m/s | 3.7 |
| 2017 | 16.9°C | 11.4°C | 6.0°C | 22.8°C | 1.5°C | 39 mm | 66% | 3.3 m/s | 3.5 |
| 2016 | 17.6°C | 11.9°C | 6.2°C | 23.4°C | 2.8°C | 38 mm | 66% | 3.2 m/s | 3.8 |
| 2015 | 16.2°C | 11.0°C | 5.8°C | 21.3°C | 1.8°C | 50 mm | 76% | 2.9 m/s | 3.4 |
| 2014 | 17.2°C | 11.0°C | 4.7°C | 23.8°C | 1.1°C | 9 mm | 67% | 2.6 m/s | 3.9 |
| 2013 | 17.1°C | 11.8°C | 6.6°C | 25.0°C | 2.1°C | 29 mm | 77% | 3.1 m/s | 3.5 |
| 2012 | 16.1°C | 10.9°C | 5.6°C | 22.3°C | 2.6°C | 27 mm | 71% | 3.1 m/s | 3.6 |
| 2011 | 18.1°C | 12.7°C | 7.4°C | 24.4°C | 3.5°C | 41 mm | 71% | 2.9 m/s | 3.6 |
| 2010 | 14.7°C | 10.0°C | 5.3°C | 20.7°C | 1.0°C | 62 mm | 77% | 3.5 m/s | 3.3 |
| 2009 | 18.7°C | 13.0°C | 7.2°C | 26.4°C | 4.3°C | 22 mm | 67% | 3.4 m/s | 3.6 |
| 2008 | 14.3°C | 9.5°C | 4.7°C | 20.9°C | 0.8°C | 44 mm | 76% | 2.9 m/s | 3.4 |
| 2007 | 18.8°C | 12.5°C | 6.2°C | 27.8°C | 2.7°C | 14 mm | 63% | 3.1 m/s | 4.1 |
| 2006 | 19.2°C | 12.9°C | 6.6°C | 26.0°C | 2.7°C | 4 mm | 63% | 2.6 m/s | 4.1 |
| 2005 | 18.1°C | 12.5°C | 6.9°C | 25.7°C | 2.8°C | 34 mm | 65% | 3.5 m/s | 3.7 |
| 2004 | 16.8°C | 11.3°C | 5.8°C | 26.3°C | 0.6°C | 53 mm | 70% | 3.3 m/s | 3.6 |
| 2003 | 15.7°C | 10.5°C | 5.3°C | 23.3°C | 2.7°C | 65 mm | 68% | 3.6 m/s | 3.4 |
| 2002 | 17.4°C | 11.1°C | 4.9°C | 23.0°C | 1.2°C | 17 mm | 63% | 2.9 m/s | 3.7 |
| 2001 | 16.4°C | 11.4°C | 6.4°C | 22.5°C | 2.7°C | 54 mm | 70% | 3.7 m/s | 3.2 |
| 2000 | 16.2°C | 11.2°C | 6.1°C | 21.2°C | 1.7°C | 63 mm | 71% | 3.1 m/s | 3.4 |
| 1999 | 18.3°C | 12.2°C | 6.1°C | 25.4°C | 1.0°C | 30 mm | 63% | 3.2 m/s | 3.9 |
| 1998 | 17.5°C | 12.0°C | 6.5°C | 24.4°C | 3.6°C | 43 mm | 71% | 3 m/s | 3.6 |
| 1997 | 15.9°C | 10.7°C | 5.5°C | 21.1°C | 2.0°C | 40 mm | 67% | 3.1 m/s | 3.4 |
| 1996 | 15.6°C | 10.9°C | 6.1°C | 22.2°C | 2.8°C | 48 mm | 74% | 3.2 m/s | 3.5 |
| 1995 | 18.1°C | 12.3°C | 6.6°C | 27.7°C | 1.0°C | 19 mm | 68% | 2.9 m/s | 3.8 |
| 1994 | 16.4°C | 10.5°C | 4.6°C | 23.8°C | 0.9°C | 8 mm | 66% | 2.7 m/s | 3.9 |
| 1993 | 18.5°C | 12.8°C | 7.1°C | 24.7°C | 1.0°C | 32 mm | 62% | 3.5 m/s | 3.8 |
| 1992 | 15.5°C | 10.4°C | 5.4°C | 22.1°C | 0.4°C | 79 mm | 70% | 3.6 m/s | 3.6 |
| 1991 | 15.7°C | 10.9°C | 6.1°C | 21.7°C | 3.3°C | 41 mm | 73% | 3.7 m/s | 3.4 |
| 1990 | 14.5°C | 10.1°C | 5.8°C | 18.4°C | 2.8°C | 51 mm | 78% | 3.7 m/s | 3.3 |
| 1989 ❄️ | 13.5°C | 9.0°C | 4.5°C | 20.3°C | 0.1°C | 35 mm | 80% | 3.1 m/s | 3.7 |
| 1988 | 17.1°C | 11.5°C | 5.9°C | 25.3°C | 0.5°C | 12 mm | 69% | 3.1 m/s | 3.7 |
| 1987 | 16.1°C | 10.8°C | 5.5°C | 23.9°C | 1.2°C | 43 mm | 75% | 3.1 m/s | 3.5 |
| 1986 | 15.1°C | 10.3°C | 5.4°C | 20.0°C | 2.5°C | 71 mm | 75% | 3.2 m/s | 3.5 |
| 1985 🌧️ | 15.6°C | 10.6°C | 5.6°C | 23.6°C | 2.0°C | 125 mm | 75% | 3.5 m/s | 3.4 |
| 1984 | 15.6°C | 10.7°C | 5.9°C | 21.0°C | 1.5°C | 64 mm | 73% | 3.8 m/s | 3.5 |
| 1983 | 17.4°C | 11.7°C | 6.1°C | 23.8°C | 1.5°C | 37 mm | 69% | 3 m/s | — |
| 1982 | 21.2°C | 14.5°C | 7.8°C | 27.7°C | 1.4°C | 7 mm | 50% | 2.8 m/s | — |
| 1981 | 15.5°C | 10.7°C | 5.8°C | 18.8°C | 1.1°C | 50 mm | 74% | 3.8 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 16.9°C with lows near 6.1°C (mean 11.5°C), based on 45 years of NASA POWER data.
August averages 37 mm of rainfall in Port Pirie, about average for rainfall. The wettest on record was 125 mm in 1985.
The hottest August reached 28.9°C in 2024. The coldest dipped to 0.1°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.2°C. Daytime highs moved from 17.1°C to 18.4°C and overnight lows from 6.2°C to 7.2°C over the same span.
August is one of the cooler months of the year in Port Pirie and about average for rainfall, so plan for around 16.9°C daytime highs and 6.1°C at night.
Not quite — August is the 3rd coolest month in Port Pirie, averaging 11.5°C.
For August in Port Pirie, pack warm layers and a jacket for chilly mornings, with typical highs of 16.9°C and lows of 6.1°C.
Relative humidity in August averages 69% — moderately humid.
Average wind speed in August is 3.2 m/s. The windiest August on record averaged 4 m/s (2018).
The wettest August on record was 1985 with 125 mm. On average, August sees 37 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 Port Pirie 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.
