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August Weather in Joondalup, Australia

Last updated: August 22, 2025

In August, the average temperature in Joondalup, Australia is a comfortable 14°C (58°F). Expect a minimum of 6°C (44°F) and a pleasant maximum of 26°C (80°F). With an average precipitation of 102 mm (4.0 in) spread over 11 days, you might want to bring an umbrella. The average humidity level sits at 70%, making for a refreshing atmosphere!

August Temperature in Joondalup

In August in Joondalup, the average temperature is 14°C (58°F), with maximums reaching up to 26°C (80°F) and minimums dropping as low as 6°C (44°F). This climate makes Joondalup a comfortable destination for travelers seeking mild weather and pleasant outdoor activities.

August Weather in Joondalup: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Joondalup, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Joondalup, August typically has an average temperature of 14°C (58°F), with highs reaching up to 26°C (80°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec757573686259585760636773
Data source: Temperature data for Joondalup generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Joondalup

In Joondalup in August, the precipitation amount is 102 mm (4.0 in) over the course of 11 days.

August Precipitation Trends in Joondalup

The chart displays monthly precipitation patterns in Joondalup, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Joondalup, August typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec29582021541001111023939249
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Joondalup

In Joondalup in August, humidity is 70%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace that can make outdoor activities feel sticky and exhausting, potentially limiting your exploration to cooler hours of the day.

August Average Humidity in Joondalup

This chart illustrates the average monthly humidity levels in Joondalup, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Joondalup is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec40%44%50%65%69%75%74%71%61%51%45%40%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Joondalup

In Joondalup in August, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Joondalup, you can refer to this Hourly UV Index in Joondalup.

Maximum UV Index Levels in Joondalup for August

The chart shows the monthly maximum UV Index (UVI) for Joondalup in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Joondalup typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141412964468111314
Data source: Joondalup August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Joondalup Compares to Other Months

Weather in Joondalup varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Joondalup, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Joondalup, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)29 mm (1.2 inches)40%extreme
February Weather24°C (75°F)58 mm (2.3 inches)44%extreme
March Weather23°C (73°F)20 mm (0.8 inches)50%extreme
April Weather20°C (68°F)21 mm (0.8 inches)65%very high
May Weather17°C (63°F)54 mm (2.1 inches)69%high
June Weather15°C (59°F)100 mm (3.9 inches)75%moderate
July Weather14°C (58°F)111 mm (4.4 inches)74%moderate
August Weather14°C (58°F)102 mm (4.0 inches)70%high
September Weather15°C (60°F)39 mm (1.5 inches)61%very high
October Weather17°C (63°F)39 mm (1.5 inches)50%extreme
November Weather20°C (68°F)24 mm (0.9 inches)45%extreme
December Weather23°C (73°F)9 mm (0.3 inches)40%extreme

Compare Joondalup's Climate with Cities Worldwide