Perth Weather in August
Average highs run from 17°C on August 1 to 16°C on August 31, and lows from 9°C to 8°C. Normal precipitation for the month is 109 mm over about 19 wet days.
August day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
August at a glance
- Average high
- 17°C
- Average low
- 9°C
- Precipitation
- 109 mm
- Reanalysis high
- 25°CAug 9, 2003
- Reanalysis low
- 3°CAug 30, 2010
- Daylight
- 16 h 07 min to 13 h 57 min
- Cloud cover
- 78%
- Humidity
- 87%
- Dew point
- 11°C
- Wind
- 14.8 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 17°C | 9°C | 23°C 1995 | 5°C 2015 | 62% |
| Aug 2 | 17°C | 9°C | 23°C 1995 | 5°C 1996 | 62% |
| Aug 3 | 17°C | 9°C | 21°C 2004 | 5°C 2020 | 62% |
| Aug 4 | 17°C | 9°C | 21°C 2002 | 7°C 2001 | 62% |
| Aug 5 | 17°C | 9°C | 22°C 2003 | 6°C 2010 | 62% |
| Aug 6 | 17°C | 9°C | 23°C 2003 | 5°C 2017 | 61% |
| Aug 7 | 17°C | 9°C | 24°C 2003 | 5°C 2015 | 60% |
| Aug 8 | 17°C | 9°C | 23°C 2003 | 5°C 2008 | 60% |
| Aug 9 | 17°C | 9°C | 25°C 2003 | 5°C 2016 | 60% |
| Aug 10 | 17°C | 9°C | 22°C 1995 | 4°C 2016 | 60% |
| Aug 11 | 17°C | 9°C | 23°C 1995 | 4°C 1993 | 61% |
| Aug 12 | 17°C | 9°C | 24°C 2020 | 4°C 1993 | 63% |
| Aug 13 | 17°C | 9°C | 23°C 1997 | 3°C 1993 | 63% |
| Aug 14 | 17°C | 9°C | 21°C 2020 | 4°C 1994 | 62% |
| Aug 15 | 17°C | 9°C | 21°C 1997 | 6°C 1994 | 63% |
| Aug 16 | 17°C | 9°C | 21°C 1995 | 6°C 2015 | 64% |
| Aug 17 | 17°C | 9°C | 22°C 1995 | 6°C 1993 | 64% |
| Aug 18 | 16°C | 9°C | 24°C 1995 | 5°C 1994 | 63% |
| Aug 19 | 16°C | 9°C | 22°C 1997 | 5°C 2014 | 63% |
| Aug 20 | 16°C | 9°C | 24°C 1995 | 4°C 1999 | 62% |
| Aug 21 | 16°C | 9°C | 24°C 1995 | 3°C 1999 | 63% |
| Aug 22 | 16°C | 9°C | 21°C 2007 | 3°C 1993 | 62% |
| Aug 23 | 16°C | 8°C | 21°C 2007 | 4°C 1993 | 60% |
| Aug 24 | 16°C | 8°C | 19°C 2019 | 4°C 2014 | 60% |
| Aug 25 | 16°C | 8°C | 23°C 2019 | 4°C 2014 | 58% |
| Aug 26 | 16°C | 8°C | 20°C 2002 | 3°C 1993 | 56% |
| Aug 27 | 16°C | 8°C | 20°C 2002 | 4°C 1998 | 54% |
| Aug 28 | 16°C | 8°C | 19°C 2002 | 5°C 1992 | 53% |
| Aug 29 | 16°C | 8°C | 20°C 2008 | 5°C 1992 | 52% |
| Aug 30 | 16°C | 8°C | 22°C 1991 | 3°C 2010 | 52% |
| Aug 31 | 16°C | 8°C | 21°C 1993 | 4°C 2012 | 52% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- August 1
- sunrise 5:16 AM, sunset 9:23 PM
- August 31
- sunrise 6:15 AM, sunset 8:12 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.