Our verdict
The best time to visit Perth is April-May
In summer, the average maximum temperature is around 31℃ (87℉), but temperatures can sometimes reach as high as 32℃ (90℉) on the hottest days of the year. The coldest it usually gets in winter-time in Perth is around 8℃ (45℉).
If you’re a sun-chaser and want to visit Perth when the days are longest, you should visit in January. The wet season in Perth usually falls during the months surrounding July each year. It’s not uncommon to get some decent rainfall or light showers during this time, but on some days the weather tends to be fine for a majority of the day, with only a few drops of rain falling from a passing shower.
To learn everything you need to know (and none of the stuff you don’t) about when to visit Perth, keep reading below. Plus, you’ll find tools to help you get the best deals on travel and hotels too!
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Perth seasons
Before you continue, it’s important to know when the seasons are in Perth as they might be different to yours depending on where in the world you’re travelling from. Perth is in the Southern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | December to February |
| Autumn/fall | March to May |
| Winter | June to August |
| Spring | September to November |
Average temperatures in Perth
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Perth for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Perth climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Perth for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Perth in January
- Average temperature: 25℃ (77℉)
- Average high temperature: 31℃ (87℉)
- Average low temperature: 19℃ (66℉)
- Average humidity: 51%
- Average sunny days: 24 days
- Average rainfall: 11mm (0") over 5 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in January, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Perth in February
- Average temperature: 25℃ (77℉)
- Average high temperature: 31℃ (87℉)
- Average low temperature: 19℃ (66℉)
- Average humidity: 52%
- Average sunny days: 23 days
- Average rainfall: 14mm (1") over 4 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in February, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Perth in March
- Average temperature: 23℃ (73℉)
- Average high temperature: 28℃ (83℉)
- Average low temperature: 18℃ (64℉)
- Average humidity: 55%
- Average sunny days: 24 days
- Average rainfall: 9mm (0") over 7 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in March, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Perth in April
- Average temperature: 20℃ (68℉)
- Average high temperature: 25℃ (77℉)
- Average low temperature: 16℃ (60℉)
- Average humidity: 60%
- Average sunny days: 20 days
- Average rainfall: 16mm (1") over 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in April, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Perth in May
- Average temperature: 16℃ (62℉)
- Average high temperature: 21℃ (70℉)
- Average low temperature: 13℃ (55℉)
- Average humidity: 65%
- Average sunny days: 20 days
- Average rainfall: 42mm (2") over 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in May, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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Perth in June
- Average temperature: 14℃ (57℉)
- Average high temperature: 18℃ (65℉)
- Average low temperature: 11℃ (52℉)
- Average humidity: 71%
- Average sunny days: 17 days
- Average rainfall: 56mm (2") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in June, make sure you pack a warm jacket or coat.
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Perth in July
- Average temperature: 13℃ (55℉)
- Average high temperature: 17℃ (62℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 75%
- Average sunny days: 14 days
- Average rainfall: 57mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in July, make sure you pack a warm jacket or coat.
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Perth in August
- Average temperature: 14℃ (56℉)
- Average high temperature: 18℃ (64℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 74%
- Average sunny days: 15 days
- Average rainfall: 53mm (2") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in August, make sure you pack a warm jacket or coat.
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Perth in September
- Average temperature: 15℃ (58℉)
- Average high temperature: 19℃ (66℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 71%
- Average sunny days: 16 days
- Average rainfall: 31mm (1") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in September, make sure you pack a warm jacket or coat.
Perth in October
- Average temperature: 17℃ (63℉)
- Average high temperature: 22℃ (72℉)
- Average low temperature: 12℃ (54℉)
- Average humidity: 65%
- Average sunny days: 20 days
- Average rainfall: 17mm (1") over 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in October, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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Perth in November
- Average temperature: 21℃ (69℉)
- Average high temperature: 26℃ (79℉)
- Average low temperature: 15℃ (59℉)
- Average humidity: 57%
- Average sunny days: 22 days
- Average rainfall: 14mm (1") over 6 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in November, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Perth in December
- Average temperature: 23℃ (74℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 17℃ (63℉)
- Average humidity: 52%
- Average sunny days: 25 days
- Average rainfall: 9mm (0") over 5 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Perth in December, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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