Western Australia weather in August 2025

Expect 18°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Western Australia in August. Check more long-term weather averages for Western Australia in August before you book your next holiday to Western Australia in 2025/2026.

  • 18°C maximum daytime temperature in August in Western Australia (Perth)18
    18°C max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in August in Western Australia (Perth)13
    13 days with some rainfall
  • 9°C minimum night-time temperature in August in Western Australia (Perth)9
    9°C min night temperature
  • 11 hours of daylight per day in August in Western Australia (Perth)11
    11 hours of daylight per day
  • No heat & humidity in August in Western Australia (Perth)0
    No heat & humidity
  • 118 mm monthly rainfall in August in Western Australia (Perth)118
    118 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Western Australia (Perth)4
    4 (Moderate) UV index
  • 18°C sea temperature in August in Western Australia (Perth)18
    18°C sea temperature

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The August weather guide for Western Australia (Perth) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Western Australia destinations

Below are average maximum temperatures at popular countries, regions and places in Western Australia in August. Select a holiday destination to see more weather parameters.

All Western Australia destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Australia

How hot is it in Western Australia in August?

Daytime temperatures usually reach 18°C in Perth, Western Australia in August, falling to 9°C at night.

How sunny is it in Western Australia in August?

There are normally 7 hours of bright sunshine each day in Perth, Western Australia in August - that's 59% of daylight hours.

How warm is the sea around Western Australia in August?

The average sea temperature around Perth, Western Australia in August is 18°C.

Does it rain in Western Australia in August?

There are usually 13 days with some rain in Perth, Western Australia in August and the average monthly rainfall is 118mm.

Western Australia August sunrise & sunset times

Browse the sunrise and sunset times for Western Australia in August 2025. Select a month to view Western Australia sunrise and sunset times for the next 12 months. The Western Australia sunrise and sunset times shown below are for Perth.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 07:06 17:41
Saturday, 16th August 2025 06:52 17:50
Sunday, 31st August 2025 06:35 17:59

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