Lexi Webster
Winters in Perth, Australia, are relatively cool and wet, with temperatures ranging from 8°C to 19°C. The city experiences a Mediterranean climate, with July being the coldest month of the year. While days can be sunny, nights are cool, and rain is common. Frost can occasionally form, and temperatures below 0°C have been recorded on rare occasions. Snow has never been reported in the Perth CBD, but light snowfalls have occurred in outer suburbs like Kalamunda and Roleystone. Perth's winter offers a pleasant break from the extreme heat of summer, making it a popular time to visit for those seeking milder temperatures.
| Characteristics | Values |
|---|---|
| Season | Winter (June – August) |
| Temperature | 8°C–19°C (46.4°F–66.2°F) |
| Temperature (July) | 5°C–20°C |
| Temperature (Daytime) | 15°C–18°C |
| Temperature (Night) | 0°C–5°C |
| Sunshine Hours (July) | 10–10.5 hours |
| Sunshine Hours (January) | 13 hours |
| Sunlight (June) | 6.3 hours |
| Rainy Days (2009) | 16 days |
| Wettest Day (2009) | 19th with 30.6mm |
| Rainy Days (July) | Rare, but possible |
| Frost | Occasional |
| Snow | Never recorded in Perth CBD, but light snowfalls reported in outer suburbs |
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What You'll Learn
Perth's winter weather: June to August
Perth, the capital of Western Australia, has a Mediterranean climate, with hot, dry summers and mild, wet winters. Winter in Perth lasts from June to August and is relatively cool and wet, with temperatures ranging from 8°C to 19°C. The coldest month is July, with an average maximum temperature of 18.4°C and a minimum of 7.9°C. Frost can occasionally form, and temperatures below 2°C occur about four times a year.
While snow has never been recorded in the Perth CBD, light snowfalls have been reported in outer suburbs like Kalamunda, Roleystone, and Mundaring, with the most recent snowfall in 1968. Winter days in Perth can be sunny and fresh, with temperatures between 15°C and 18°C, and cool nights, dropping to between 0°C and 5°C. Rain is rare, but July is the rainiest month, with the possibility of storms. An umbrella is recommended.
The sea temperatures are at their hottest in autumn, and visitors should be aware of the UV index, protecting themselves from sunburn with SPF30+ sunscreen and sun-smart clothing. In contrast to the summer, when temperatures can exceed 40°C for several consecutive days, winter in Perth offers a more pleasant climate, with fewer tourists and the opportunity to head north for a swim.
Perth experiences a smaller range of temperatures during winter, with maximums between 16°C and 22°C, and minimums between 3°C and 13°C. An average of 6.3 to 10.5 hours of daylight can be expected in July, with approximately 8.8 hours of sunshine per day.
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Daytime and night-time temperatures
Winters in Perth, Australia, are relatively cool and wet. The city experiences a Mediterranean climate, with hot, dry summers and mild, wet winters.
During the winter months of June, July, and August, the daytime temperatures in Perth range from 16°C to 22°C. The maximum temperature in July, the coldest month of the year, is typically around 18.4°C, although it can vary between 5°C and 20°C. The nights can be cool, with minimum temperatures ranging from 3°C to 13°C. On average, temperatures below 2°C occur about four times a year, and temperatures can drop below freezing once every five years. The lowest recorded temperature in Perth was −0.7°C in June 2006.
It is important to note that wind chill can significantly impact how cold it feels, and many buildings in Perth lack central heating or double glazing, which can make indoor temperatures colder.
In contrast to the cooler nights, the sea temperatures remain relatively warm during the winter months, ranging from 19.4°C to 21.3°C. This makes winter swimming quite pleasant for those acclimated to cooler waters.
Overall, Perth's winter temperatures are mild compared to some other parts of Australia, and residents and visitors can still expect to experience sunny days during this season.
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Rain and storms
Winters in Perth are mild and wet, with temperatures ranging from 8°C to 19°C. While snow has never been recorded in the Perth CBD, light snowfalls have been reported in outer suburbs like Kalamunda, Roleystone, and Mundaring. The last time it snowed in these areas was in 1968.
Perth experiences a Mediterranean climate, with 77.7% of its rain falling between May and September. The city has around 300 days of sunshine per year, but winter is its wettest season. June is the wettest month, with an average of 173.8 mm of rain over 16 days. The city experiences occasional storms, characterised by downpours of rain and thunderstorms.
Perth has experienced some notable extreme rainfall events in recent years. In March 2010, the city recorded 40.2 mm of rain, causing significant damage across the metropolitan area. This was the costliest natural disaster in Western Australia's history, with a damage bill of A$1.08 billion. On 10 February 2017, Perth received 114.4 mm of rain, the highest one-day rainfall total ever recorded in the city. In January 2018, the remnants of ex-Tropical Cyclone Joyce brought 96.2 mm of rain to Perth, with even higher rainfall recorded on Rottnest Island.
In August 2025, Perth experienced a severe weather event that pushed the city towards its wettest winter in almost 30 years. The city surpassed its average rainfall total for each of the three winter months for the first time in almost three decades. Gusty showers and thunderstorms delivered by a cold front caused Perth to exceed its average rainfall total for August, marking the first time in nearly three decades that the city had exceeded its average mark for every winter month.
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Sunshine and UV index
Perth, Australia, is known for its sunny weather and beautiful beaches. The city enjoys approximately 300 days of sunshine a year, with 8.8 hours of sunshine per day on average. This makes it the sunniest capital city in Australia, with clear blue skies for about 70% of the year.
Perth's winters, from June to August, are relatively cool and wet, with the occasional storm. June, the month with the shortest days, sees an average of 5.9 hours of sunshine. The UV index during this month is at its lowest, with a maximum of 3. July, the coldest month, sees a slight increase in sunshine, with an average of 10.1 hours of daylight. The UV index remains low, at a maximum of 3.
During winter, it is important to be mindful of the UV index, which describes the daily solar UV radiation intensity. Even on cloudy days, UV radiation can be high, and it is essential to take precautions to protect yourself from sunburn. Sunscreen with SPF30+ or SPF50+ is recommended, along with sun-smart clothing, including a hat and sunglasses.
The best times to visit Perth for pleasant weather are from March to May (autumn) and September to November (spring), as these seasons offer plenty of sunshine, warm temperatures, and minimal rainfall. November, in particular, often has warm weather with little rain, making it an ideal month to visit.
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What to wear
Winters in Perth are mild, with average minimums of 7–8°C and a maximum of 17–20°C. Early mornings can be as low as 8–10°C, and it can feel extra chilly when it's windy or rainy. So, while you may not need a thick winter coat, you will need some warm clothes for layering.
On colder days, a light jacket and trousers should suffice. A leather jacket, jeans, boots, a t-shirt, and a sweater are also suitable for days when you're not very active. On warmer winter days, you can get away with shorts and a t-shirt, perhaps with a light zip-up fleece or windbreaker on top. If you're heading to the beach, you might even go bare-legged in the sunshine.
However, nights in Perth can be cold, with temperatures dropping to around 0°C, so make sure you have some warmer clothes for the evenings. A decent jacket, jeans, a beanie, and a scarf should see you through the winter nights. It's also a good idea to bring some warm socks and closed shoes or boots for the colder months.
While snow is rare in Perth, it does rain a lot during winter, especially in July. So, a raincoat and umbrella are essential items to pack. You might also want to bring a hat and gloves to keep out the wind and rain.
Overall, Perth is a very casual city when it comes to dress, so don't worry about dressing up too much. Just make sure you have plenty of layers to adapt to the changing weather.
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Frequently asked questions
Winters in Perth are mild and wet, with temperatures ranging from 8°C to 19°C.
Snow has never been recorded in the Perth CBD, but light snowfalls have been reported in outer suburbs like Kalamunda, Roleystone, and Mundaring. The last time it snowed in these areas was in 1968.
You'll want to bring a good warm jacket and a few jumpers. It's unlikely to be warm enough for shorts, but you can always wear layers and take them off if you get too warm inside. An umbrella is also recommended.
Perth and the southwest are lush and green in July, so it's a great time to explore the nature reserves and national parks. There are over 12,000 species of wildflowers in bloom during this time.
The coldest month in Perth is July, with an average maximum temperature of 18.4°C and a minimum of 7.9°C.
