The climate of Perth
Perth, nestled on the southwest coast of
Australia, adheres to a Csa Köppen climate classification. This classification translates into a Mediterranean climate with a hot summer. Throughout the year, the city witnesses weather that varies drastically, presenting distinct peaks and valleys in its climatic parameters.
Perth, akin to its Mediterranean classification, experiences warm to hot temperatures through most of the year with the highest monthly average temperature reaching 31.7°C (89.1°F) in
February. The thermal trend then decreases gradually, and by
July, the city endures the coldest month, with temperatures dropping to an average low of 7.7°C (45.9°F). Concurrently, the relative humidity also elevates from an average of 39% in
January and February to a high of 57% in July.
Rainfall in Perth spirals from a mere 9mm (0.35") in February to a substantial 145mm (5.71") in July. The number of rainy days follows a similar trend, increasing from 2.1 days in February to 16.9 days in July. Conversely, sunbathing opportunities dwindle from a lengthy 14 daylight hours in January to just 10.1 hours in
June. Correspondingly, the UV index fluctuates between 12 in January and
December, dropping to 3 in June and July.
Perth's distinct climate patterns truly emphasize the nature of its Mediterranean hot summer classification with hot, dry summers contrasting with moderately wet and cool winters.
The best time to visit Perth
With its Mediterranean climate,
Perth invites visitors particularly during late spring and early autumn. Coinciding with both optimal temperatures and moderate rainfall, this period offers ideal conditions for outdoor activities and events.
November, for instance, averages highs of 26.6°C (79.9°F) and only 24mm (0.94") of rainfall, making it an apt month to relish the local landscapes without the disruption of heavy rainfalls or extreme heat.
The worst time to visit Perth
Perth's winter months,
June to
August, dawns the list as the least desirable time for a visit.
July marks both the coldest and wettest month with temperatures plummeting to 7.7°C (45.9°F) and rainfall escalating to 145mm (5.71"). Also, with the shortest daylight duration clocked in June, at an average of just 10.1 hours, the opportunities for outdoor exploration are significantly limited during this period.
Spring weather in Perth
Allying the warmth from the departing summer and the mildness of the arriving winter, Spring in
Perth is pleasantly modulated. The temperature ranges from 25.9°C (78.6°F) to 18.4°C (65.1°F) in
September, resting at 22.3°C (72.1°F) to 10.5°C (50.9°F) in
November, with relative humidity hovering around 50%. Although rainfall escalates from 37mm (1.46") in September to 90mm (3.54") in November, it is still palatable compared to the winter season.
Summer weather in Perth
Summers in
Perth are characterized by high temperatures and low rainfall.
December welcomes the onset of summer with highs averaging 29.1°C (84.4°F) which scales up to a sizzling 31.7°C (89.1°F) by
February. The scant rainfall ranges from 10mm (0.39") in December to 9mm (0.35") in February, coinciding with a short rainy spell triggered by the fewest average rainy days, thereby providing ample opportunity to revel the sunshine.
Autumn weather in Perth
Autumn in
Perth is a transitional period where temperatures begin to cool and rainfall starts to inch upward. From
March to
May, temperatures abate from 29.6°C (85.3°F) to 22.3°C (72.1°F) and rainfall swells from 21mm (0.83") to a significant 90mm (3.54"). On the bright side, the lengthening daylight hours offer extended periods for leisure and exploration.
Winter weather in Perth
Winters in
Perth exhibit a mellower temperament with decreasing temperature and increasing rainfall. The coldest month,
July, sees temperatures dipping down to 7.7°C (45.9°F). Along with the chill, rainfall is at its zenith peaking at 145mm (5.71"), accompanied by the most rainy days at an average of 16.9. Winter in Perth is far from gloomy, however, with average daylight hours subtly increasing as the season progresses.
Weather in January
January in
Perth,
Australia brings in the New Year with a blend of warm temperatures and modest humidity. Characterized by a summery weather, the month commences with the city's highest annual temperature, reaching a scorching high of 31.3°C (88.3°F).
Weather in January » Weather in February
Just as
January handed the baton of heat,
February holds steady, recording the highest temperature of the year, an intense 31.7°C (89.1°F).
Perth's weather during the second month continues to embrace the summer spirit, as sunbathed days make way for starlit nights.
Weather in February »Weather in March
March in
Perth is a transitional time as summer bids farewell, and autumn graces the city. A detectable dip in temperature takes place, lowering to 29.6°C (85.3°F), signaling the start of the cooler months. Standout features of March include a slight increase in rainfall coupled with more humid conditions as nature prepares for autumn.
Weather in March »
Weather in April
Embracing the full swing of autumn,
April in
Perth encounters pronounced changes in its climatic patterns. A decrease in temperature from 25.9°C (78.6°F) to cooler thresholds becomes noticeable, offering a respite after the heated summer months.
Weather in April »Weather in May
May marks the further continuation of cooler weather in
Perth, where autumn transitions into the early phase of winter. The rainfall during this month amplifies to a significant 90mm (3.54"), marking the onset of wetter conditions in the city.
Weather in May » Weather in June
June in
Perth not only ushers in the winter season but also signifies the shift to shorter days and longer nights. With recorded average low temperatures dipping to 8.6°C (47.5°F), the winter cold makes its presence felt. Occasional overcast skies and chilly winds become common phenomena during this time.
Weather in June »
Weather in July
July in
Perth grows colder, becoming the epitome of winter in the city. With the lowest sea temperatures registered at 19°C (66.2°F), a chilly blanket covers Perth during this month. The city experiences its highest rainfall of the year, 145mm (5.71"), providing nourishment to the abundant greenery.
Weather in July » Weather in August
August in
Perth provides a glimpse of departure from the colder months, acting as a curtain-closer for winter. It holds onto the winter's vestiges, while introducing early signs of spring. As August advances, rainfall decreases, acting as a herald to sunnier days.
Weather in August » Weather in September
September marks the arrival of spring in
Perth, bringing pleasant weather and blooming flowers. Gradual warming up of temperatures indicates the city’s shift from cooler to warmer months. Initially, remnants of winter rainfall linger, but as the month advances, the rain subsides.
Weather in September »
Weather in October
In
Perth,
October weather offers warmth and serenity, characteristic of spring. Warmer temperatures from 23.4°C (74.1°F) accompany the city residents as they enjoy golden sunlight during the day. October sees a sharp reduction in rainfall, paving the way for sunnier days and cooler nights.
Weather in October »Weather in November
November in
Perth is a segue into the approaching summer, exemplifying the brilliance of the late spring. Temperatures climb higher, reaching up to 26.6°C (79.9°F), indicating the advent of the warmer season. The progressively longer days speak of the coming summer, marked by copious sunlight and sparse rains.
Weather in November » Weather in December
Closing the year,
December in
Perth is filled with the arrival of summer, bringing back familiar higher temperatures. To herald the summer, Perth experiences a significant rise in temperature, soaring to 29.1°C (84.4°F), alongside reduced rainfall of 10mm (0.39").
Weather in December » [Resources]