Temperature range
Typical highs and lows
High31.2°C
Low9.7°C
The broad yearly range between warm daytime highs and the coolest overnight lows.
Australia Perth, Australia
The climate in Perth is temperate, with annual average temperatures spanning 17°C / 62°F during August up to 31°C / 88°F in February.
Precipitation is distributed throughout the year, averaging 47 mm / 1.9 inches monthly, peaking in July (109 mm / 4.3 inches) and reaching its lowest in December (10 mm / 0.39 inches).
The UV index ranges from 4 in June to 10 in January, so strong sun protection is essential during summer months.
The longest days occur in December with around 14.2 hours of daylight, while June has the shortest days at about 10.1 hours.
Trip planning
Plan your trip
Find the best dates. Understand the conditions. Pack with confidence.
Climate overview
Climate at a glance
The big-picture stats that matter for planning your visit to Perth.
Rain pattern
Wettest point of the year
109 mm
July carries the highest typical rainfall load.
Sun exposure
Typical peak UV band
High (7.3)
A fast read on how strong midday sun typically gets across the year.
Daylight window
Seasonal daylight range
10 hrsto14 hrs
Useful for gauging how much sightseeing time you get in shorter versus longer seasons.
Wind profile
Typical breeze strength
18 km/h
January is typically the breeziest month.
Humidity
Typical moisture range
51 %to76 %
A quick signal for how dry, comfortable, or heavy the air tends to feel.
When should I go?
Our top-rated months for visiting Perth, based on long-term weather comfort and conditions
Typical weather by month
Compare all monthsTip: click on a card to see detailed daily weather averages for that month.
How Perth compares
See how it ranks against the rest of Australia for key metrics.
HOTTEST (AVG)
in Australia
#6 / 14
COOLEST (AVG)
in Australia
#7 / 14
WETTEST (TOTAL)
in Australia
#13 / 14
WINDIEST (AVG)
in Australia
#1 / 14
HIGHEST UV
in Australia
#7 / 14
MOST HUMID
in Australia
#14 / 14
Short term outlook
Visiting soon? Here's the next 7 days of weather for Perth, or see an hourly breakdown for the next 14 days.
Travel planning FAQ
Frequently asked questions
Quick answers to the weather questions you ask the most.
How does the weather in Perth feel over the year?
Across the year, daytime highs average about 24°C (75°F), with nights near 14°C (57°F). Overall it feels warm by day and cool after dark. Daylight is fairly typical, with enough time for sightseeing. Expect a mix of sun and cloud across the year.
When is the best time to visit Perth for dry weather?
When is sun exposure strongest in Perth?
UV tends to peak in January, when UV levels frequently reach very high levels (around 10), so strong sun protection is essential, especially around midday.
Is Perth humid?
It can feel humid, especially in the warmer months, when humidity can climb to around 76%. Light, breathable fabrics help a lot on muggy days.
Is Perth a windy place?
Across the year, average winds sit around 18 km/h (11 mph), with gusts on windier days up to about 68 km/h (42 mph). Overall it is it is a notably windy place, and strong gusts are fairly common.
How much daylight does Perth get?
On average, days offer about 12 hours of daylight. Daylight is fairly typical, with enough time for sightseeing.