Weathermondo.com
AustraliaThe weather in August in Rottnest Island
It's pleasantly warm in August in Rottnest Island with an average temperature of 19°C. Temperatures this month range from a low of 17°C to a high of 21°C. At night, you can expect temperatures between 7°C and 12°C.
Looking for great weather? August is a good time to be in Rottnest Island. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Rottnest Island, Australia. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 29°C in 2019, Rottnest Island reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 12°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 1°C to a highest value of 17°C.
Rainfall amount
In August, there is an average of 72 mm of precipitation, spread over 10 days. The wind speed is around 5 Bft, mostly coming from the South.
Daily weather in August for Rottnest Island
Click on any day in August to get detailed info about the usual weather on that day in Rottnest Island. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Rottnest Island | New York | |
|---|---|---|
| Average temperature | 19°C | 30°C |
| Max. temperature | 21°C | 31°C |
| Min. temperature | 7°C | -5°C |
| Total precipitation | 72 mm | 79 mm |
| Rainy days | 10 days | 13 days |
Start of August
The month of August starts in Rottnest Island with mild temps, averaging around 18°C during the day and nights around 10°C.
Mid August
By mid-August, daytime temps rise to around 19°C, with nights around 11°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of August
By the end of August, the average daytime temperature in Rottnest Island is around 20°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
Find affordable trips to Rottnest Island
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Rottnest Island for all months and discover the best travel time
Curious about the weather in other parts of Australia? Check out the climate and weather for spots like Sydney, Gold Coast, Melbourne, or explore other destinations in Australia.
Temperature charts
These charts show the average temperatures in August in Rottnest Island, Australia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Rottnest Island
Temperature in August in Rottnest Island over the years
Precipitation charts
These charts show the average amount of precipitation in August in Rottnest Island, Australia. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Rottnest Island
Total precipitation in August in Rottnest Island over the years
Daily UV index in August in Rottnest Island
This chart shows the average daily UV index in August in Rottnest Island, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in Rottnest Island
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Average weather in Rottnest Island by month
Click on a month below to see detailed weather info for Rottnest Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.