August is one of the cooler months of the year in Exmouth, with average highs near 25.5°C and lows around 16.5°C (mean 21°C). It is one of the drier months, averaging 7 mm of rainfall and 62% relative humidity across the period.
August is one of the cooler months of the year in Exmouth. Across 45 years of records, the warmest Augusts in Exmouth were 1982 and 2023 — when the month averaged 22.4°C — while the coldest was 1986 at 19.1°C. Typical August days reach 25.5°C with nights near 16.5°C. The long-term August temperature trend is broadly flat.
August is one of the drier months in Exmouth, averaging 7 mm of rainfall. The wettest August on record was 1990 with 35 mm, while the driest were 1989, 2007 and 2013 at 0 mm.
Relative humidity in Exmouth during August averages 62%. The most humid August was 1998 at 69%, and the least humid was 2008 at 55%.
August receives about 5.4 kWh/m²/day of solar energy in Exmouth. The sunniest Augusts were 2007, 2012 and 2018, among others at 5.7 kWh/m²/day, and the cloudiest were 1990 and 2010 at 4.9.
Average wind speed in Exmouth during August is 4.2 m/s. The windiest Augusts were 1990 and 2004 at 5 m/s, while the calmest was 2014 at 3.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.0°C | 21.0°C | 20.9°C | 21.0°C | 21.4°C | +0.4°C |
| Avg High | 25.5°C | 25.4°C | 25.4°C | 25.6°C | 26.0°C | +0.5°C |
| Avg Low | 16.6°C | 16.6°C | 16.3°C | 16.4°C | 17.0°C | +0.4°C |
| Avg Rain | 6 mm | 10 mm | 5 mm | 3 mm | 12 mm | +6 mm |
August temperatures in Exmouth have stayed relatively stable across the record.
August has ranged from a record low of 10.2°C (1992) to a record high of 33.5°C (2020).
Rainfall in August is one of the drier months, averaging 7 mm, with a wettest year of 35 mm.
One of the best times to visit Exmouth
August is one of the best times to visit Exmouth. Expect days averaging 25.5°C and nights around 16.5°C (mean 21°C) — cooler than Exmouth's yearly average — with low rainfall (7 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 | 25.4°C | 21.3°C | 17.3°C | 30.0°C | 13.1°C | 31 mm | 63% | 3.8 m/s | 5 |
| 2024 | 26.0°C | 21.6°C | 17.3°C | 28.7°C | 14.2°C | 3 mm | 66% | 4.1 m/s | 5.4 |
| 2023 | 27.2°C | 22.4°C | 17.6°C | 32.1°C | 14.5°C | 2 mm | 59% | 3.4 m/s | 5.5 |
| 2022 | 25.0°C | 20.7°C | 16.3°C | 28.9°C | 10.7°C | 15 mm | 63% | 4.2 m/s | 5.2 |
| 2021 | 25.8°C | 21.0°C | 16.3°C | 29.3°C | 11.9°C | 15 mm | 61% | 4.1 m/s | 5.4 |
| 2020 | 26.4°C | 21.6°C | 16.9°C | 33.5°C | 13.5°C | 6 mm | 58% | 4.5 m/s | 5.4 |
| 2019 | 25.1°C | 20.6°C | 16.0°C | 28.6°C | 12.5°C | 4 mm | 60% | 4.1 m/s | 5.5 |
| 2018 | 24.1°C | 19.5°C | 14.8°C | 28.0°C | 10.9°C | 1 mm | 60% | 4.5 m/s | 5.7 |
| 2017 | 25.6°C | 21.0°C | 16.4°C | 32.4°C | 11.4°C | 2 mm | 59% | 4.3 m/s | 5.6 |
| 2016 | 23.8°C | 19.7°C | 15.7°C | 25.8°C | 10.7°C | 1 mm | 66% | 4.2 m/s | 5.4 |
| 2015 | 25.5°C | 21.1°C | 16.7°C | 29.1°C | 13.2°C | 0 mm | 64% | 4 m/s | 5.4 |
| 2014 | 26.8°C | 22.0°C | 17.2°C | 29.4°C | 15.9°C | 0 mm | 58% | 3.2 m/s | 5.6 |
| 2013 | 25.7°C | 20.9°C | 16.1°C | 29.7°C | 13.3°C | 0 mm | 62% | 3.7 m/s | 5.6 |
| 2012 | 27.2°C | 21.8°C | 16.5°C | 31.2°C | 14.1°C | 0 mm | 60% | 3.6 m/s | 5.7 |
| 2011 | 26.5°C | 22.0°C | 17.6°C | 29.9°C | 14.4°C | 5 mm | 64% | 3.5 m/s | 5.4 |
| 2010 | 25.2°C | 21.2°C | 17.3°C | 28.0°C | 13.5°C | 12 mm | 61% | 4 m/s | 4.9 |
| 2009 | 25.1°C | 20.8°C | 16.5°C | 27.7°C | 13.5°C | 1 mm | 64% | 4.1 m/s | 5.5 |
| 2008 | 25.4°C | 20.7°C | 15.9°C | 28.0°C | 12.0°C | 2 mm | 55% | 3.6 m/s | 5.3 |
| 2007 | 25.9°C | 20.7°C | 15.6°C | 29.1°C | 13.2°C | 0 mm | 61% | 4.3 m/s | 5.7 |
| 2006 | 26.7°C | 21.8°C | 16.9°C | 29.6°C | 14.0°C | 0 mm | 65% | 3.4 m/s | 5.6 |
| 2005 | 24.7°C | 20.5°C | 16.2°C | 26.9°C | 13.2°C | 16 mm | 64% | 4.3 m/s | 5.2 |
| 2004 | 24.4°C | 19.8°C | 15.1°C | 27.2°C | 12.8°C | 1 mm | 57% | 5 m/s | 5.7 |
| 2003 | 25.0°C | 20.7°C | 16.5°C | 29.8°C | 13.6°C | 14 mm | 59% | 4.5 m/s | 5.4 |
| 2002 | 25.3°C | 20.8°C | 16.4°C | 27.1°C | 13.3°C | 1 mm | 61% | 4.4 m/s | 5.5 |
| 2001 | 26.4°C | 22.3°C | 18.1°C | 28.0°C | 15.1°C | 2 mm | 60% | 4 m/s | 5.5 |
| 2000 | 25.0°C | 20.4°C | 15.7°C | 27.9°C | 12.2°C | 8 mm | 60% | 4.2 m/s | 5.4 |
| 1999 | 26.2°C | 22.1°C | 18.0°C | 27.6°C | 15.2°C | 0 mm | 61% | 4.1 m/s | 5.4 |
| 1998 | 25.9°C | 21.3°C | 16.6°C | 29.1°C | 13.4°C | 17 mm | 69% | 4 m/s | 5.6 |
| 1997 | 25.0°C | 20.7°C | 16.4°C | 30.3°C | 13.1°C | 26 mm | 60% | 4.3 m/s | 5.2 |
| 1996 | 24.6°C | 20.4°C | 16.1°C | 27.7°C | 12.4°C | 1 mm | 65% | 4.8 m/s | 5.2 |
| 1995 | 26.8°C | 21.7°C | 16.6°C | 33.2°C | 13.8°C | 2 mm | 57% | 4.6 m/s | 5.7 |
| 1994 | 26.7°C | 22.1°C | 17.5°C | 29.2°C | 13.3°C | 10 mm | 62% | 3.7 m/s | 5.6 |
| 1993 | 24.8°C | 20.3°C | 15.8°C | 29.0°C | 12.4°C | 10 mm | 60% | 4.6 m/s | 5.5 |
| 1992 | 23.3°C | 19.5°C | 15.7°C | 26.0°C | 10.2°C | 4 mm | 65% | 4.9 m/s | 5.2 |
| 1991 | 26.6°C | 21.8°C | 17.1°C | 30.5°C | 14.9°C | 1 mm | 61% | 4.1 m/s | 5.6 |
| 1990 🌧️ | 24.3°C | 20.4°C | 16.5°C | 27.4°C | 13.7°C | 35 mm | 67% | 5 m/s | 4.9 |
| 1989 | 25.9°C | 21.0°C | 16.1°C | 29.0°C | 11.2°C | 0 mm | 57% | 4.2 m/s | 5.5 |
| 1988 | 26.2°C | 22.1°C | 18.0°C | 29.2°C | 15.2°C | 16 mm | 63% | 4 m/s | 5.4 |
| 1987 | 25.7°C | 21.1°C | 16.5°C | 28.4°C | 12.3°C | 2 mm | 58% | 4.1 m/s | 5.6 |
| 1986 ❄️ | 23.8°C | 19.1°C | 14.5°C | 28.2°C | 10.5°C | 2 mm | 59% | 4.8 m/s | 5.6 |
| 1985 | 25.0°C | 20.3°C | 15.5°C | 29.9°C | 12.5°C | 1 mm | 61% | 4.4 m/s | 5.5 |
| 1984 | 24.7°C | 20.1°C | 15.5°C | 30.4°C | 12.8°C | 15 mm | 62% | 4.4 m/s | 5.4 |
| 1983 | 26.0°C | 21.9°C | 17.9°C | 29.1°C | 13.7°C | 9 mm | 64% | 3.9 m/s | — |
| 1982 🔥 | 26.6°C | 22.4°C | 18.2°C | 29.3°C | 13.7°C | 7 mm | 65% | 3.8 m/s | — |
| 1981 | 25.2°C | 21.3°C | 17.3°C | 29.4°C | 13.7°C | 7 mm | 63% | 4.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 25.5°C with lows near 16.5°C (mean 21°C), based on 45 years of NASA POWER data.
August averages 7 mm of rainfall in Exmouth, one of the drier months. The wettest on record was 35 mm in 1990.
The hottest August reached 33.5°C in 2020. The coldest dipped to 10.2°C in 1992.
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 25.5°C to 25.9°C and overnight lows from 16.9°C to 17°C over the same span.
August is one of the cooler months of the year in Exmouth and one of the drier months, so plan for around 25.5°C daytime highs and 16.5°C at night.
Not quite — August is the 2nd coolest month in Exmouth, averaging 21°C.
For August in Exmouth, pack light layers you can adjust through the day, with typical highs of 25.5°C and lows of 16.5°C.
Relative humidity in August averages 62% — moderately humid.
Average wind speed in August is 4.2 m/s. The windiest August on record averaged 5 m/s (1990).
The wettest August on record was 1990 with 35 mm. On average, August sees 7 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.
