Weather in August
Temperature
During August, Perth records an average high-temperature of a still comfortable 19.1°C (66.4°F), marking a slight divergence from July's 18.4°C (65.1°F). In the month of August, an average of 8.3°C (46.9°F) marks the low-temperature.Humidity
The average relative humidity in August is 54%.Rainfall
In Perth, in August, during 15.7 rainfall days, 122mm (4.8") of precipitation is typically accumulated. Throughout the year, there are 108.4 rainfall days, and 725mm (28.54") of precipitation is accumulated.Sea temperature
In August, the average sea temperature in Perth is 19.4°C (66.9°F).Note: A surface water temperature of 19.4°C (66.9°F) does not provide an enjoyable swimming experience for most. Breathing control becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
The average length of the day in August in Perth is 10h and 59min.On the first day of the month, sunrise is at 7:05 am and sunset at 5:40 pm. On the last day of August, sunrise is at 6:34 am and sunset at 5:59 pm AWST.
Sunshine
The average sunshine in August in Perth is 7.2h.UV index
In August, the average daily maximum UV index in Perth is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 4 in August suggests the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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Average temperature in August
Perth, Australia
- Average high temperature in August: 19.1°C
The warmest month (with the highest average high temperature) is February (31.7°C).
The month with the lowest average high temperature is July (18.4°C).
- Average low temperature in August: 8.3°C
The month with the highest average low temperature is February (18.4°C).
The coldest month (with the lowest average low temperature) is July (7.7°C).
Average humidity in August
Perth, Australia
- Average humidity in August: 54%
The month with the highest relative humidity is July (57%).
The month with the lowest relative humidity is February (38%).
Average rainfall in August
Perth, Australia
- Average rainfall in August: 122.4mm
The wettest month (with the highest rainfall) is July (144.7mm).
The driest month (with the least rainfall) is February (8.8mm).
Average rainfall days in August
Perth, Australia
- Average rainfall days in August: 15.7 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (2.1 days).
Average sea temperature in August
Perth, Australia
- Average sea temperature in August: 19.4°C
The best month for swimming (with the highest average sea temperature) is March (23.4°C).
The coldest months (with the lowest average sea temperature) are September and October (19°C).
Average daylight in August /
Average sunshine in August
Perth, Australia
- Average daylight in August: 11h and 0min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in August: 7h and 1min
The months with the most sunshine are January and December (Average sunshine: 11h and 30min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average UV index in August
Perth, Australia
- Average UV index in August: 4
The months with the highest UV index are January and December (UV index 12).
The months with the lowest UV index are June and July (UV index 3).
Perth, Australia
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