August is one of the warmer months of the year in Exmouth, with average highs near 18.9°C and lows around 14.6°C (mean 16.8°C). It is one of the drier months, averaging 66 mm of rainfall and 84% relative humidity across the period.
August is one of the warmer months of the year in Exmouth. Across 45 years of records, the warmest August in Exmouth was 2022 — when the month averaged 19.2°C — while the coldest was 1986 at 14.3°C. Typical August days reach 18.9°C with nights near 14.6°C. The long-term trend is warming, about 0.2°C per decade.
August is one of the drier months in Exmouth, averaging 66 mm of rainfall. The wettest August on record was 2015 with 186 mm, while the driest was 1995 at 9 mm.
Relative humidity in Exmouth during August averages 84%. The most humid Augusts were 1997 and 2012 at 88%, and the least humid was 1995 at 77%.
August receives about 4.6 kWh/m²/day of solar energy in Exmouth. The sunniest Augusts were 1995, 2005 and 2022 at 5.3 kWh/m²/day, and the cloudiest was 1986 at 3.6.
Average wind speed in Exmouth during August is 4.1 m/s. The windiest August was 1985 at 5.4 m/s, while the calmest was 1981 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.3°C | 16.8°C | 16.7°C | 16.5°C | 17.6°C | +1.3°C |
| Avg High | 18.5°C | 19.1°C | 18.7°C | 18.6°C | 19.8°C | +1.3°C |
| Avg Low | 14.1°C | 14.6°C | 14.6°C | 14.5°C | 15.4°C | +1.3°C |
| Avg Rain | 54 mm | 62 mm | 60 mm | 91 mm | 59 mm | +5 mm |
August temperatures in Exmouth have risen by about 1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 10.1°C (1986) to a record high of 26.4°C (2022).
Rainfall in August is one of the drier months, averaging 66 mm, with a wettest year of 186 mm.
One of the best times to visit Exmouth
August is one of the best times to visit Exmouth. Expect days averaging 18.9°C and nights around 14.6°C (mean 16.8°C) — warmer than Exmouth's yearly average — with moderate rainfall (66 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 20.4°C | 18.1°C | 15.9°C | 24.7°C | 14.1°C | 36 mm | 80% | 4.2 m/s | 4.8 |
| 2024 | 19.3°C | 17.3°C | 15.2°C | 21.9°C | 13.4°C | 80 mm | 85% | 4.5 m/s | 4.6 |
| 2023 | 19.0°C | 17.0°C | 14.9°C | 21.1°C | 13.2°C | 70 mm | 86% | 4.4 m/s | 4.5 |
| 2022 🔥 | 22.0°C | 19.2°C | 16.3°C | 26.4°C | 13.7°C | 16 mm | 77% | 3.5 m/s | 5.3 |
| 2021 | 18.5°C | 16.4°C | 14.3°C | 20.0°C | 12.9°C | 43 mm | 86% | 4.2 m/s | 4.6 |
| 2020 | 19.8°C | 17.7°C | 15.7°C | 24.8°C | 12.1°C | 107 mm | 84% | 4.4 m/s | 4.5 |
| 2019 | 18.9°C | 17.0°C | 15.1°C | 21.3°C | 13.5°C | 93 mm | 85% | 4.6 m/s | 4.9 |
| 2018 | 19.8°C | 17.4°C | 15.0°C | 24.6°C | 12.5°C | 88 mm | 82% | 3.9 m/s | 4.5 |
| 2017 | 18.2°C | 16.2°C | 14.3°C | 22.2°C | 12.6°C | 81 mm | 85% | 4.2 m/s | 4.7 |
| 2016 | 19.0°C | 16.9°C | 14.7°C | 21.3°C | 12.8°C | 71 mm | 86% | 4.4 m/s | 5 |
| 2015 🌧️ | 17.8°C | 15.9°C | 14.0°C | 20.3°C | 12.1°C | 186 mm | 86% | 4.2 m/s | 4 |
| 2014 | 18.1°C | 16.1°C | 14.1°C | 20.5°C | 11.2°C | 95 mm | 80% | 4.9 m/s | 4.8 |
| 2013 | 19.5°C | 17.1°C | 14.8°C | 21.6°C | 12.8°C | 36 mm | 82% | 3.9 m/s | 5 |
| 2012 | 18.0°C | 16.5°C | 15.0°C | 21.0°C | 11.5°C | 98 mm | 88% | 4.6 m/s | 4.5 |
| 2011 | 17.8°C | 15.9°C | 14.0°C | 20.0°C | 11.8°C | 77 mm | 83% | 4.1 m/s | 4.4 |
| 2010 | 18.5°C | 16.3°C | 14.1°C | 20.2°C | 11.3°C | 79 mm | 84% | 4.7 m/s | 4.2 |
| 2009 | 18.2°C | 16.4°C | 14.6°C | 20.6°C | 12.7°C | 53 mm | 87% | 4.4 m/s | 4.4 |
| 2008 | 17.7°C | 16.1°C | 14.5°C | 19.4°C | 12.0°C | 103 mm | 88% | 5.2 m/s | 4 |
| 2007 | 18.3°C | 16.1°C | 13.9°C | 20.8°C | 12.5°C | 60 mm | 84% | 4.5 m/s | 5.1 |
| 2006 | 19.0°C | 16.9°C | 14.8°C | 22.6°C | 13.4°C | 45 mm | 82% | 4.6 m/s | 4.7 |
| 2005 | 19.0°C | 16.6°C | 14.2°C | 22.0°C | 12.3°C | 38 mm | 83% | 3.8 m/s | 5.3 |
| 2004 | 18.6°C | 16.9°C | 15.1°C | 20.9°C | 12.6°C | 132 mm | 87% | 4.2 m/s | 4.6 |
| 2003 | 20.3°C | 17.9°C | 15.4°C | 25.1°C | 12.0°C | 26 mm | 83% | 3.3 m/s | 4.7 |
| 2002 | 18.6°C | 16.4°C | 14.3°C | 20.2°C | 13.2°C | 38 mm | 86% | 3.5 m/s | 4.5 |
| 2001 | 18.6°C | 16.6°C | 14.7°C | 21.5°C | 12.9°C | 55 mm | 86% | 4.1 m/s | 4.2 |
| 2000 | 18.6°C | 16.7°C | 14.8°C | 20.6°C | 13.2°C | 52 mm | 86% | 4 m/s | 4.4 |
| 1999 | 18.4°C | 16.8°C | 15.2°C | 20.6°C | 12.8°C | 128 mm | 87% | 3.7 m/s | 4.3 |
| 1998 | 18.9°C | 16.3°C | 13.8°C | 21.4°C | 11.8°C | 26 mm | 84% | 3.9 m/s | 5.2 |
| 1997 | 19.7°C | 17.9°C | 16.2°C | 22.8°C | 14.3°C | 116 mm | 88% | 3.2 m/s | 3.9 |
| 1996 | 18.2°C | 16.0°C | 13.9°C | 20.9°C | 12.1°C | 56 mm | 84% | 4.1 m/s | 4.8 |
| 1995 | 21.8°C | 18.9°C | 16.1°C | 26.0°C | 13.5°C | 9 mm | 77% | 3.5 m/s | 5.3 |
| 1994 | 18.4°C | 16.5°C | 14.5°C | 21.0°C | 11.9°C | 69 mm | 83% | 4.3 m/s | 4.4 |
| 1993 | 17.7°C | 15.4°C | 13.1°C | 20.3°C | 10.2°C | 46 mm | 83% | 3.9 m/s | 4.8 |
| 1992 | 18.0°C | 16.0°C | 14.1°C | 20.0°C | 11.1°C | 119 mm | 83% | 4.9 m/s | 3.9 |
| 1991 | 19.1°C | 16.7°C | 14.3°C | 21.7°C | 12.3°C | 22 mm | 84% | 3.6 m/s | 4.8 |
| 1990 | 20.4°C | 17.7°C | 15.0°C | 26.2°C | 12.9°C | 27 mm | 80% | 3.6 m/s | 4.8 |
| 1989 | 20.0°C | 17.5°C | 14.9°C | 21.6°C | 12.4°C | 38 mm | 79% | 4.1 m/s | 5 |
| 1988 | 17.5°C | 15.3°C | 13.2°C | 20.6°C | 11.0°C | 48 mm | 84% | 4.3 m/s | 4.3 |
| 1987 | 19.0°C | 16.5°C | 14.0°C | 23.9°C | 11.7°C | 22 mm | 81% | 3.5 m/s | 4.3 |
| 1986 ❄️ | 16.1°C | 14.3°C | 12.4°C | 18.0°C | 10.1°C | 118 mm | 84% | 4.3 m/s | 3.6 |
| 1985 | 16.7°C | 14.9°C | 13.2°C | 18.4°C | 11.6°C | 101 mm | 86% | 5.4 m/s | 4.1 |
| 1984 | 19.9°C | 17.5°C | 15.2°C | 23.2°C | 11.6°C | 45 mm | 82% | 3.1 m/s | 4.4 |
| 1983 | 20.1°C | 17.6°C | 15.1°C | 22.4°C | 12.0°C | 23 mm | 81% | 3.5 m/s | — |
| 1982 | 18.4°C | 16.3°C | 14.2°C | 23.2°C | 11.6°C | 56 mm | 84% | 4.5 m/s | — |
| 1981 | 19.1°C | 16.9°C | 14.6°C | 22.4°C | 12.0°C | 35 mm | 84% | 2.8 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 18.9°C with lows near 14.6°C (mean 16.8°C), based on 45 years of NASA POWER data.
August averages 66 mm of rainfall in Exmouth, one of the drier months. The wettest on record was 186 mm in 2015.
The hottest August reached 26.4°C in 2022. The coldest dipped to 10.1°C in 1986.
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 18.8°C to 19.8°C and overnight lows from 14.5°C to 15.3°C over the same span.
August is one of the warmer months of the year in Exmouth and one of the drier months, so plan for around 18.9°C daytime highs and 14.6°C at night.
Not quite — August is the 12th coolest month in Exmouth, averaging 16.8°C.
For August in Exmouth, pack light layers you can adjust through the day, with typical highs of 18.9°C and lows of 14.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 84% — quite humid.
Average wind speed in August is 4.1 m/s. The windiest August on record averaged 5.4 m/s (1985).
The wettest August on record was 2015 with 186 mm. On average, August sees 66 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 Exmouth 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.
