Climate averages 1991–2020
Mandurah weather
in August.
A mild, wet month: the 11th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Mandurah: daytime highs average 16.8°C and nights cool to about 9.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 96 mm of rain on roughly 12 days, which makes August a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 56 min on an average August day.
The nearest other city in this atlas is Perth (65 km away). In August its highs average 17.2°C, about as warm as Mandurah, with 89 mm of rain.
Among the 32 cities listed in Australia, Mandurah ranks 19th of 32 for the warmest August highs and 31st of 32 for the driest August (rainfall, lowest first). The mean August high of those 32 cities is 17.6°C; Mandurah is 0.9°C cooler than that mean.
From August to September, average highs rise by 1.0°C to 17.8°C, and monthly rainfall falls from 96 mm to 64 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Mandurah climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.2°C18.2°C | 18.2°C | 12 | 1.4 | 14.014 h |
| February | 30.3°C18.5°C | 18.5°C | 16 | 1.4 | 13.313 h |
| March | 28.1°C17.3°C | 17.3°C | 18 | 2.5 | 12.312 h |
| April | 24.3°C15.1°C | 15.1°C | 25 | 4.3 | 11.311 h |
| May | 20.5°C12.6°C | 12.6°C | 73 | 8.1 | 10.510 h |
| June | 17.5°C10.9°C | 10.9°C | 111 | 11.2 | 10.010 h |
| July | 16.4°C9.9°C | 9.9°C | 111 | 13.0 | 10.210 h |
| August, selected | 16.8°C9.8°C | 9.8°C | 96 | 11.5 | 10.911 h |
| September | 17.8°C10.4°C | 10.4°C | 64 | 9.1 | 11.912 h |
| October | 20.9°C12.0°C | 12.0°C | 29 | 5.0 | 12.913 h |
| November | 24.6°C14.5°C | 14.5°C | 23 | 4.1 | 13.814 h |
| December | 28.0°C16.5°C | 16.5°C | 12 | 1.9 | 14.214 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Mandurah) is explained once on the Mandurah year overview and on the Sources, method and limits page.