August is one of the cooler months of the year in Ceduna, with average highs near 19.2°C and lows around 7.9°C (mean 13.6°C). It is about average for rainfall, averaging 30 mm of rainfall and 66% relative humidity across the period.
August is one of the cooler months of the year in Ceduna. Across 45 years of records, the warmest Augusts in Ceduna were 1982 and 2024 — when the month averaged 15.9°C — while the coldest was 1989 at 11.3°C. Typical August days reach 19.2°C with nights near 7.9°C. The long-term trend is warming, about 0.3°C per decade.
August is about average for rainfall in Ceduna, averaging 30 mm of rainfall. The wettest August on record was 2004 with 92 mm, while the driest was 2014 at 1 mm.
Relative humidity in Ceduna during August averages 66%. The most humid August was 1989 at 74%, and the least humid was 1982 at 52%.
August receives about 3.9 kWh/m²/day of solar energy in Ceduna. The sunniest Augusts were 2007 and 2014 at 4.2 kWh/m²/day, and the cloudiest were 2003 and 2010 at 3.5.
Average wind speed in Ceduna during August is 3.5 m/s. The windiest Augusts were 1984 and 2018 at 4.3 m/s, while the calmest was 2014 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.0°C | 13.4°C | 13.7°C | 13.6°C | 14.3°C | +1.3°C |
| Avg High | 18.6°C | 19.0°C | 19.6°C | 19.1°C | 20.0°C | +1.4°C |
| Avg Low | 7.5°C | 7.8°C | 7.8°C | 8.0°C | 8.6°C | +1.1°C |
| Avg Rain | 34 mm | 32 mm | 40 mm | 22 mm | 16 mm | -18 mm |
August temperatures in Ceduna have risen by about 0.9°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 1.9°C (1994) to a record high of 32.2°C (2024).
Rainfall in August is about average for rainfall, averaging 30 mm, with a wettest year of 92 mm.
A quieter season to visit Ceduna
If your dates are flexible, the more temperate months of March and December tend to be the most comfortable for visiting Ceduna. That said, August — with days averaging 19.2°C and nights around 7.9°C (mean 13.6°C) and low rainfall (30 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 | 19.2°C | 13.7°C | 8.2°C | 25.5°C | 3.1°C | 9 mm | 62% | 3.9 m/s | 4 |
| 2024 | 22.0°C | 15.9°C | 9.8°C | 32.2°C | 5.0°C | 4 mm | 63% | 3.5 m/s | 4 |
| 2023 | 21.6°C | 15.2°C | 8.7°C | 29.0°C | 3.9°C | 7 mm | 63% | 3.1 m/s | 3.9 |
| 2022 | 18.7°C | 13.4°C | 8.2°C | 28.7°C | 4.5°C | 30 mm | 65% | 4.1 m/s | 3.7 |
| 2021 | 19.7°C | 14.1°C | 8.5°C | 27.7°C | 4.1°C | 11 mm | 64% | 3.3 m/s | 4.1 |
| 2020 | 18.9°C | 13.6°C | 8.4°C | 28.0°C | 4.9°C | 37 mm | 67% | 3.8 m/s | 3.8 |
| 2019 | 18.9°C | 13.2°C | 7.5°C | 26.4°C | 3.6°C | 9 mm | 63% | 3.6 m/s | 3.8 |
| 2018 | 19.6°C | 14.0°C | 8.5°C | 27.7°C | 3.3°C | 36 mm | 60% | 4.3 m/s | 3.6 |
| 2017 | 19.5°C | 14.0°C | 8.5°C | 27.9°C | 4.1°C | 7 mm | 61% | 3.9 m/s | 3.8 |
| 2016 | 19.9°C | 13.9°C | 7.9°C | 26.6°C | 4.0°C | 7 mm | 61% | 3.5 m/s | 3.9 |
| 2015 | 18.6°C | 13.3°C | 8.1°C | 25.6°C | 4.3°C | 27 mm | 70% | 3.3 m/s | 3.6 |
| 2014 | 19.2°C | 12.9°C | 6.5°C | 25.7°C | 2.8°C | 1 mm | 67% | 2.7 m/s | 4.2 |
| 2013 | 20.1°C | 14.5°C | 8.8°C | 27.6°C | 4.2°C | 26 mm | 70% | 3.4 m/s | 3.8 |
| 2012 | 18.8°C | 13.1°C | 7.4°C | 25.7°C | 3.2°C | 15 mm | 66% | 3.4 m/s | 4 |
| 2011 | 20.0°C | 14.6°C | 9.2°C | 25.7°C | 5.6°C | 41 mm | 71% | 3.1 m/s | 4 |
| 2010 | 16.7°C | 12.2°C | 7.7°C | 24.2°C | 3.7°C | 48 mm | 73% | 3.6 m/s | 3.5 |
| 2009 | 21.2°C | 15.0°C | 8.8°C | 28.3°C | 3.8°C | 14 mm | 68% | 3.4 m/s | 4 |
| 2008 | 17.0°C | 12.0°C | 6.9°C | 23.2°C | 3.0°C | 31 mm | 67% | 3.2 m/s | 3.9 |
| 2007 | 21.1°C | 14.4°C | 7.7°C | 30.7°C | 4.8°C | 8 mm | 58% | 3.4 m/s | 4.2 |
| 2006 | 21.5°C | 14.6°C | 7.8°C | 28.2°C | 4.2°C | 3 mm | 62% | 3 m/s | 4.1 |
| 2005 | 19.8°C | 14.0°C | 8.2°C | 28.4°C | 3.9°C | 29 mm | 63% | 3.7 m/s | 3.7 |
| 2004 🌧️ | 19.1°C | 13.6°C | 8.1°C | 28.2°C | 4.9°C | 92 mm | 71% | 3.8 m/s | 3.9 |
| 2003 | 18.4°C | 12.9°C | 7.3°C | 23.1°C | 4.1°C | 69 mm | 68% | 4 m/s | 3.5 |
| 2002 | 19.8°C | 13.5°C | 7.1°C | 28.5°C | 3.1°C | 14 mm | 61% | 3.5 m/s | 4 |
| 2001 | 19.4°C | 14.1°C | 8.8°C | 28.5°C | 4.0°C | 66 mm | 65% | 4.1 m/s | 3.9 |
| 2000 | 18.3°C | 13.0°C | 7.6°C | 24.1°C | 4.0°C | 69 mm | 70% | 3.6 m/s | 4 |
| 1999 | 20.5°C | 14.1°C | 7.8°C | 29.1°C | 1.9°C | 16 mm | 58% | 3.6 m/s | 3.9 |
| 1998 | 20.1°C | 14.1°C | 8.1°C | 28.5°C | 5.7°C | 10 mm | 68% | 3.1 m/s | 4.1 |
| 1997 | 18.3°C | 12.9°C | 7.4°C | 24.6°C | 3.5°C | 42 mm | 65% | 3.4 m/s | 3.9 |
| 1996 | 18.2°C | 13.0°C | 7.8°C | 25.1°C | 4.4°C | 47 mm | 69% | 3.2 m/s | 3.9 |
| 1995 | 20.4°C | 14.2°C | 8.1°C | 31.6°C | 4.1°C | 18 mm | 65% | 3.2 m/s | 4.1 |
| 1994 | 19.1°C | 13.0°C | 6.9°C | 27.4°C | 1.9°C | 8 mm | 60% | 3.1 m/s | 4.1 |
| 1993 | 20.6°C | 14.4°C | 8.1°C | 27.6°C | 3.6°C | 42 mm | 60% | 3.4 m/s | 3.9 |
| 1992 | 17.9°C | 12.7°C | 7.4°C | 23.4°C | 3.2°C | 69 mm | 65% | 4.2 m/s | 3.7 |
| 1991 | 18.1°C | 13.3°C | 8.4°C | 24.5°C | 5.3°C | 34 mm | 67% | 4 m/s | 3.8 |
| 1990 | 17.2°C | 12.4°C | 7.6°C | 23.7°C | 3.3°C | 33 mm | 71% | 3.8 m/s | 3.7 |
| 1989 ❄️ | 16.1°C | 11.3°C | 6.5°C | 21.2°C | 2.8°C | 25 mm | 74% | 3.3 m/s | 4 |
| 1988 | 18.9°C | 13.2°C | 7.5°C | 25.8°C | 2.1°C | 10 mm | 62% | 3.4 m/s | 3.9 |
| 1987 | 18.2°C | 12.6°C | 7.1°C | 27.7°C | 2.9°C | 26 mm | 69% | 3.1 m/s | 3.8 |
| 1986 | 17.1°C | 12.0°C | 6.9°C | 24.6°C | 3.1°C | 45 mm | 74% | 3.5 m/s | 3.9 |
| 1985 | 18.2°C | 13.1°C | 8.0°C | 29.6°C | 3.9°C | 80 mm | 69% | 3.9 m/s | 3.6 |
| 1984 | 18.1°C | 12.7°C | 7.3°C | 23.8°C | 4.1°C | 47 mm | 68% | 4.3 m/s | 3.8 |
| 1983 | 19.5°C | 13.5°C | 7.5°C | 25.8°C | 3.3°C | 29 mm | 67% | 3.2 m/s | — |
| 1982 🔥 | 23.3°C | 15.9°C | 8.6°C | 29.4°C | 3.0°C | 5 mm | 52% | 3.2 m/s | — |
| 1981 | 18.4°C | 13.0°C | 7.7°C | 24.7°C | 3.2°C | 42 mm | 69% | 3.9 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 19.2°C with lows near 7.9°C (mean 13.6°C), based on 45 years of NASA POWER data.
August averages 30 mm of rainfall in Ceduna, about average for rainfall. The wettest on record was 92 mm in 2004.
The hottest August reached 32.2°C in 2024. The coldest dipped to 1.9°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.9°C. Daytime highs moved from 19.5°C to 20.2°C and overnight lows from 7.8°C to 8.7°C over the same span.
August is one of the cooler months of the year in Ceduna and about average for rainfall, so plan for around 19.2°C daytime highs and 7.9°C at night.
Not quite — August is the 3rd coolest month in Ceduna, averaging 13.6°C.
For August in Ceduna, pack warm layers and a jacket for chilly mornings, with typical highs of 19.2°C and lows of 7.9°C.
Relative humidity in August averages 66% — moderately humid.
Average wind speed in August is 3.5 m/s. The windiest August on record averaged 4.3 m/s (1984).
The wettest August on record was 2004 with 92 mm. On average, August sees 30 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 Ceduna 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.
