August is one of the cooler months of the year in Katanning, with average highs near 15.3°C and lows around 5.3°C (mean 10.3°C). It is a relatively wet time of year, averaging 60 mm of rainfall and 84% relative humidity across the period.
August is one of the cooler months of the year in Katanning. Across 45 years of records, the warmest August in Katanning was 2014 — when the month averaged 12.1°C — while the coldest was 1986 at 8.8°C. Typical August days reach 15.3°C with nights near 5.3°C. The long-term trend is warming, about 0.2°C per decade.
August is a relatively wet time of year in Katanning, averaging 60 mm of rainfall. The wettest Augusts on record were 2024 and 2025 with 101 mm, while the driest was 2008 at 12 mm.
Relative humidity in Katanning during August averages 84%. The most humid August was 1992 at 88%, and the least humid was 2019 at 79%.
August receives about 3.5 kWh/m²/day of solar energy in Katanning. The sunniest Augusts were 2008, 2011 and 2019 at 3.8 kWh/m²/day, and the cloudiest was 1992 at 3.2.
Average wind speed in Katanning during August is 3.1 m/s. The windiest August was 2024 at 3.8 m/s, while the calmest was 2023 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.0°C | 10.1°C | 10.2°C | 10.8°C | 10.5°C | +0.5°C |
| Avg High | 15.1°C | 15.0°C | 15.2°C | 15.9°C | 15.2°C | +0.1°C |
| Avg Low | 4.9°C | 5.2°C | 5.3°C | 5.6°C | 5.7°C | +0.8°C |
| Avg Rain | 52 mm | 55 mm | 55 mm | 62 mm | 87 mm | +35 mm |
August temperatures in Katanning have stayed relatively stable across the record.
August has ranged from a record low of -0.8°C (1981) to a record high of 25°C (2006).
Rainfall in August is a relatively wet time of year, averaging 60 mm, with a wettest year of 101 mm.
A quieter season to visit Katanning
If your dates are flexible, the more temperate months of December and February tend to be the most comfortable for visiting Katanning. That said, August — with days averaging 15.3°C and nights around 5.3°C (mean 10.3°C) and moderate rainfall (60 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 | 10.0°C | 5.2°C | 21.4°C | 2.4°C | 101 mm | 86% | 3 m/s | 3.6 |
| 2024 🌧️ | 15.4°C | 11.1°C | 6.9°C | 20.3°C | 1.7°C | 101 mm | 87% | 3.8 m/s | 3.5 |
| 2023 | 16.8°C | 11.4°C | 5.9°C | 23.4°C | 0.3°C | 66 mm | 85% | 2.2 m/s | 3.5 |
| 2022 | 14.3°C | 9.6°C | 4.9°C | 19.7°C | 0.8°C | 97 mm | 86% | 3.1 m/s | 3.6 |
| 2021 | 15.1°C | 10.5°C | 5.9°C | 21.8°C | 2.7°C | 69 mm | 86% | 3.1 m/s | 3.6 |
| 2020 | 14.8°C | 10.2°C | 5.6°C | 21.8°C | 2.5°C | 89 mm | 85% | 3 m/s | 3.7 |
| 2019 | 16.6°C | 11.0°C | 5.4°C | 24.3°C | 2.4°C | 70 mm | 79% | 2.8 m/s | 3.8 |
| 2018 | 14.6°C | 9.8°C | 5.0°C | 23.1°C | 0.8°C | 89 mm | 85% | 3.3 m/s | 3.5 |
| 2017 | 15.0°C | 10.4°C | 5.9°C | 20.9°C | 2.5°C | 65 mm | 86% | 3.4 m/s | 3.4 |
| 2016 | 14.0°C | 9.1°C | 4.3°C | 18.9°C | -0.7°C | 80 mm | 85% | 3.2 m/s | 3.3 |
| 2015 | 16.0°C | 11.0°C | 6.0°C | 24.8°C | 2.4°C | 59 mm | 83% | 2.8 m/s | 3.3 |
| 2014 🔥 | 17.6°C | 12.1°C | 6.6°C | 21.6°C | 1.2°C | 60 mm | 80% | 2.7 m/s | 3.4 |
| 2013 | 16.5°C | 11.9°C | 7.3°C | 22.0°C | 3.0°C | 69 mm | 86% | 3.3 m/s | 3.3 |
| 2012 | 16.7°C | 11.0°C | 5.2°C | 22.5°C | 1.7°C | 42 mm | 80% | 2.8 m/s | 3.6 |
| 2011 | 16.4°C | 11.0°C | 5.6°C | 23.3°C | 2.1°C | 57 mm | 83% | 3.1 m/s | 3.8 |
| 2010 | 16.0°C | 10.3°C | 4.6°C | 22.6°C | 0.8°C | 34 mm | 79% | 2.4 m/s | 3.5 |
| 2009 | 15.2°C | 10.7°C | 6.2°C | 18.4°C | 2.3°C | 51 mm | 87% | 3.2 m/s | 3.3 |
| 2008 | 15.1°C | 9.4°C | 3.6°C | 19.7°C | 0.5°C | 12 mm | 80% | 2.5 m/s | 3.8 |
| 2007 | 15.8°C | 10.9°C | 6.1°C | 20.9°C | 1.8°C | 49 mm | 84% | 3.3 m/s | 3.3 |
| 2006 | 17.6°C | 12.0°C | 6.4°C | 25.0°C | 1.5°C | 62 mm | 81% | 3.4 m/s | 3.5 |
| 2005 | 14.9°C | 10.1°C | 5.3°C | 19.7°C | 1.0°C | 57 mm | 84% | 3.1 m/s | 3.4 |
| 2004 | 13.8°C | 9.5°C | 5.1°C | 17.9°C | 1.5°C | 65 mm | 85% | 3.4 m/s | 3.4 |
| 2003 | 14.7°C | 10.0°C | 5.4°C | 17.2°C | 2.2°C | 77 mm | 85% | 3 m/s | 3.4 |
| 2002 | 15.3°C | 10.1°C | 5.0°C | 20.0°C | 0.5°C | 46 mm | 83% | 3 m/s | 3.5 |
| 2001 | 15.3°C | 10.2°C | 5.1°C | 19.9°C | 1.3°C | 71 mm | 84% | 2.7 m/s | 3.4 |
| 2000 | 14.1°C | 9.5°C | 4.8°C | 17.9°C | 2.7°C | 56 mm | 84% | 3.2 m/s | 3.4 |
| 1999 | 15.3°C | 10.2°C | 5.2°C | 20.7°C | 0.8°C | 57 mm | 82% | 3.2 m/s | 3.6 |
| 1998 | 16.5°C | 11.9°C | 7.3°C | 24.0°C | 2.5°C | 87 mm | 85% | 3.3 m/s | 3.3 |
| 1997 | 15.1°C | 10.1°C | 5.1°C | 19.2°C | 1.5°C | 59 mm | 84% | 2.8 m/s | 3.5 |
| 1996 | 14.4°C | 9.5°C | 4.6°C | 21.9°C | 0.8°C | 38 mm | 85% | 3.2 m/s | 3.7 |
| 1995 | 15.9°C | 10.9°C | 5.8°C | 23.1°C | 0.1°C | 29 mm | 83% | 3.4 m/s | 3.7 |
| 1994 | 16.4°C | 10.9°C | 5.4°C | 24.6°C | 2.1°C | 61 mm | 81% | 2.8 m/s | 3.6 |
| 1993 | 14.8°C | 9.8°C | 4.8°C | 20.3°C | 1.1°C | 50 mm | 84% | 3.3 m/s | 3.5 |
| 1992 | 13.3°C | 9.2°C | 5.0°C | 17.0°C | 0.3°C | 89 mm | 88% | 3.5 m/s | 3.2 |
| 1991 | 14.9°C | 9.8°C | 4.7°C | 20.9°C | 1.7°C | 52 mm | 84% | 3.2 m/s | 3.7 |
| 1990 | 13.7°C | 8.9°C | 4.1°C | 17.8°C | -0.1°C | 32 mm | 83% | 3.3 m/s | 3.7 |
| 1989 | 14.9°C | 9.5°C | 4.0°C | 20.7°C | 0.2°C | 45 mm | 80% | 2.7 m/s | 3.7 |
| 1988 | 15.0°C | 9.9°C | 4.8°C | 20.5°C | 1.2°C | 53 mm | 85% | 3.1 m/s | 3.5 |
| 1987 | 16.0°C | 10.2°C | 4.5°C | 22.0°C | 0.4°C | 32 mm | 80% | 2.4 m/s | 3.5 |
| 1986 ❄️ | 13.9°C | 8.8°C | 3.8°C | 19.8°C | 0.8°C | 37 mm | 85% | 3 m/s | 3.6 |
| 1985 | 14.6°C | 10.0°C | 5.5°C | 19.8°C | 1.6°C | 70 mm | 85% | 3.4 m/s | 3.5 |
| 1984 | 14.3°C | 9.6°C | 5.0°C | 21.0°C | 2.3°C | 49 mm | 84% | 3.5 m/s | 3.7 |
| 1983 | 15.6°C | 11.0°C | 6.4°C | 20.4°C | 0.4°C | 64 mm | 85% | 3.6 m/s | — |
| 1982 | 17.2°C | 11.0°C | 4.9°C | 23.5°C | -0.1°C | 67 mm | 81% | 2.7 m/s | — |
| 1981 | 14.3°C | 9.7°C | 5.0°C | 17.5°C | -0.8°C | 52 mm | 84% | 3.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 15.3°C with lows near 5.3°C (mean 10.3°C), based on 45 years of NASA POWER data.
August averages 60 mm of rainfall in Katanning, a relatively wet time of year. The wettest on record was 101 mm in 2024.
The hottest August reached 25°C in 2006. The coldest dipped to -0.8°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.2°C. Daytime highs moved from 15.2°C to 15.3°C and overnight lows from 5.4°C to 5.8°C over the same span.
August is one of the cooler months of the year in Katanning and a relatively wet time of year, so plan for around 15.3°C daytime highs and 5.3°C at night.
Not quite — August is the 2nd coolest month in Katanning, averaging 10.3°C.
For August in Katanning, pack warm layers and a jacket for chilly mornings, with typical highs of 15.3°C and lows of 5.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 84% — quite humid.
Average wind speed in August is 3.1 m/s. The windiest August on record averaged 3.8 m/s (2024).
The wettest August on record was 2024 with 101 mm. On average, August sees 60 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 Katanning 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.
