Perth in August
In August, Perth averages 18°C (64°F) during the day and 10°C (50°F) at night, with frequent rain — about 17 days of the month see precipitation (96 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Expect daily rain or showers, often in heavy bursts.
August is one of the wetter and less comfortable months in Perth. If your dates are flexible, consider a different time of year.
How August compares to the rest of the year in Perth
August is one of the coolest months in Perth (11th of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 6°C below the annual average (23°C). August runs roughly the same as July (17°C) and warms a further 2°C into September (19°C).
August sunrise & sunset in Perth
Times shown for Perth local time (Australia/Perth), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Perth — August
Golden-hour and blue-hour windows for the 15th of August, in Perth's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Perth in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (Shoulder) and Perth's popularity.
Crowds & pricing — August in Perth
Perth is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — August in Perth
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Perth in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 30°C / 86°F | 19°C / 66°F | 23 mm | 4 | — |
| February | 30°C / 86°F | 19°C / 66°F | 24 mm | 5 | — |
| March | 28°C / 83°F | 18°C / 65°F | 39 mm | 8 | — |
| April | 24°C / 75°F | 15°C / 59°F | 39 mm | 10 | — |
| May | 21°C / 69°F | 12°C / 54°F | 78 mm | 12 | — |
| June | 18°C / 65°F | 11°C / 51°F | 102 mm | 15 | — |
| July | 17°C / 63°F | 10°C / 51°F | 112 mm | 20 | — |
| August | 18°C / 64°F | 10°C / 50°F | 96 mm | 17 | — |
| September | 19°C / 67°F | 11°C / 51°F | 46 mm | 15 | — |
| October | 22°C / 71°F | 13°C / 55°F | 38 mm | 12 | — |
| November | 25°C / 78°F | 15°C / 59°F | 18 mm | 8 | — |
| December | 29°C / 83°F | 18°C / 64°F | 8 mm | 4 | — |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Perth in August →
Frequently asked questions
How hot is Perth in August?
In August, Perth averages a high of 18°C (64°F) and a low of 10°C (50°F) — generally mild and pleasant.
Does it rain a lot in Perth in August?
August is quite rainy in Perth, with about 17 rainy days on average.
Is August a good time to visit Perth?
August is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Perth in August?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full August packing list for Perth for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.