Perth weather and climate
Perth weather and climate
Day
22 °C
Night
12 °C
Sea
22 °C
Precipitation
92 mm
in month
Rainy days
11 days
in month
Daylight
10 hours
average
Sunshine
6 hours
average
Humidity
62 %
Day
22 °C
Night
12 °C
Sea
22 °C
Precipitation
92 mm
in month
Rainy days
11 days
in month
Daylight
10 hours
average
Sunshine
6 hours
average
Humidity
62 %
Overview: Perth
Weather charts for Perth
We make the most from 40 years of historical weather data to predict the best weather conditions.
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Weather overview for Perth
Weather overview
Perth, situated in Australia, typically experiences a semi-arid climate with warm to hot temperatures. During the sunlit daytime, the mercury ranges from a crisp 18 °C (65 °F) Celsius in the cool of July to a toasty 31 °C (87 °F) Celsius in the peak of February. Ocean waters along Perth's coastline exhibit seasonal temperature variations, starting at a brisk 19 °C (66 °F) Celsius in autumnal September and climbing to a more balmy 22 °C (72 °F) Celsius by springtime March. The driest chapter on Perth's calendar is January, boasting merely 2 days of rainfall, while July heralds the zenith of precipitation, with the skies opening for 16 days. Nightly temperatures also see seasonal shifts, hitting a zenith in February with 18 °C (65 °F) Celsius and plunging to their nadir in July at 9 °C (49 °F) Celsius.
January weather
In January, Perth experiences an uptick in day temperatures, reaching a warm 30 °C (86 °F), and the ocean's temperature also ascends to 22 °C (71 °F). The tourist deluge is underway, as are the minimum number of rain-filled days, contrasting with a slight increase in monthly rainfall to 15 mm (0.58 in). The zenith of sunny hours is here, tallied at 11 hours.
February weather
February second only to January in wooing tourists to Perth, with a rise in both day and sea temperatures to 31 °C (87 °F) and 22 °C (72 °F) respectively. Nighttime temperatures crest at this time, hitting 18 °C (65 °F). As the sunny hours commence their gradual decline, the first signs of change are noticed.
March weather
March in Perth marks the onset of decreasing day temperatures, now at a pleasant 29 °C (84 °F). The ocean temperatures reach their peak warmth, signaling a continued influx of tourists. The dry season remains, even as the rise in the number of rainy days begins. Night temperature trends also begin to turn cooler.
April weather
With the arrival of April, Perth sees a continuation of the increase in rainy days, now at 5 days, as well as ascending rainfall, reaching 34 mm (1.35 in). Day and night temperatures follow the previous trend, descending to 26 °C (78 °F) and 15 °C (58 °F) respectively. Meanwhile, sunny hours also see a decrease, now at 7 hours.
May weather
May brings a continued decline in day temperatures to 22 °C (72 °F) in Perth, and night temperatures follow suit, reaching 12 °C (54 °F). The progression of rainy days is ever-present, with their count now at 11 days, and precipitation volume also climbing. Sunny hours lessen and winds calm to a sedate 4 m/s.
June weather
June in Perth ushers in the early stages of the wet season, with day temperatures dipping to 19 °C (66 °F) while the ocean starts to cool, now at 21 °C (69 °F). Rainy days amass to 14 days, with a parallel rise in precipitation. The fewest sunny hours are now seen, with a total of 5 hours.
July weather
July observes Perth at its coldest daytime temperatures, averaging 18 °C (65 °F), while the sea temperature also hits its yearly low at 20 °C (68 °F). The wettest month is upon us, with the rain tally peaking at 16 days, and the nighttime minimum temperature also reaching a chilly 9 °C (49 °F).
August weather
The peak of the wet season in Perth is nearly upon us in August, with average day temperatures experiencing a slight increase to 19 °C (66 °F), and sea temperatures persisting their downward trend, now 19 °C (66 °F). The frequency of rainy days begins to descend, now at 14 days, complemented by a decrease in rainfall volume to 113 mm (4.46 in). Sunny hours start their progressive increase to 6 hours.
September weather
September's sea temperature reaches its annual nadir at 19 °C (66 °F) in Perth, while day temperatures show a modest ascent to 20 °C (68 °F). The change in rainy days is evident, with their count now at 11 days, and the rainfall quantity continues its decline too. Night temperatures start to warm slightly at 10 °C (50 °F). Sunny hours and daylight hours grow, now at 7 hours and 12 hours respectively.
October weather
As Perth marches through October, there's a further decline in rainy days and a correlation in the rainfall amount, now at 39 mm (1.54 in). Daytime temperatures continue their climb to 22 °C (72 °F), and overnight, the mercury steadies at 11 °C (53 °F). The trajectory of sunny hours ascends, now standing at 8 hours.
November weather
As November arrives, Perth sees both sea temperatures and daytime temperatures on the rise, now at 20 °C (67 °F) and 25 °C (77 °F) respectively. With a decrease in the number of rain-filled days to 4 days, the arid season is on the horizon.
December weather
December accomplishes a continued boost in day temperatures to a cozy 27 °C (81 °F) in Perth, while the ocean's warmth rises as well, settling at 21 °C (69 °F). The tourist influx marks its inception. A lesser number of rain-soaked days is notable, and the least rainfall volume of the year is also at hand. Sunny times experience an upward swing, reaching 11 hours.
FAQs
What temperature could I experience in Perth during a January day?
In Perth throughout January, the average daytime temperature is a balmy 30 °C (86 °F). It's an ideal climate for beach-goers or a dip in the pool, though it could feel quite sultry elsewhere. Remember to stay hydrated in such heat.
Is Perth in February considered hot?
Perth in February offers comfortably warm weather, with temperatures that many find agreeable – not overwhelmingly hot.
Does March in Perth mean the start of a wet season?
March in Perth doesn’t introduce a wet season; rather, you can expect a modest 3 days of rainfall over the month.
What are the visiting conditions like in Perth during April?
April is favorable for visiting Perth, featuring a mild daytime temperature of 26 °C (78 °F) and a manageable 5 days of rain throughout the month. Sea temperature hits 22 °C (72 °F), which may feel chilly to some, but is invigorating to others. Evening chills necessitate warmer attire.
How does the night feel temperature-wise in Perth during May?
May nights in Perth cool down to an average of 12 °C (54 °F), suitable for cozy evenings but potentially too brisk for late-night outdoor gatherings without proper clothing.
What is the daytime weather like in Perth throughout June?
In June, Perth's days are cooler with an average temperature of 19 °C (66 °F), and you can expect a considerable number of rainy days.
What is the humidity level like in Perth during July?
July in Perth is marked by high humidity, averaging 71 %, shadowing the cool temperatures.
Is there an onset of the dry season in Perth come August?
August in Perth still maintains its wet-season characteristics, with consistent precipitation expected over 14 days of the month.
What can be said about the wind conditions in September in Perth?
In September, Perth experiences a moderate wind speed averaging 5 m/s, neither too brisk nor too stagnant.
What number of sunlit hours are typical in Perth during October?
The duration of sunshine in Perth for October typically stretches to about 8 hours.
What are the chances of experiencing rainy days in Perth during November?
November in Perth generally presents a small number of rainy days, totaling around 4 days, indicating the commencement of drier conditions.
In December, what is the temperature profile of the sea in Perth?
The December sea temperature in Perth averages 21 °C (69 °F), providing a pleasantly cool option for those looking to escape the summer heat.