The best times to visit Perth for ideal weather are

March 12th to May 20th

or

September 24th to December 23rd

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.


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        Weather in Perth

        Temperature

        Average temperatures in Perth vary greatly. Considering humidity, temperatures feel very enjoyable all year with a low chance of precipitation most of the year. The area is somewhat temperate — in the 56th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Perth, the hottest months are January, February, and then March. See average monthly temperatures below. The warmest time of year is generally late January where highs are regularly around 92.5°F (33.6°C) with temperatures rarely dropping below 66.3°F (19.1°C) at night.

        Perth Temperatures (Fahrenheit)

        Key
        High
        Average
        Low

        Perth Temperatures (Celsius)

        Key
        High
        Average
        Low

        “Feels-Like” Temperatures

        The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

        Perth Perceived Temperature (F)

        Key
        High
        Average
        Low

        Perth Perceived Temperature (C)

        Key
        High
        Average
        Low

         

        Average Perth Temperatures by Month

        Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

        Show Fahrenheit

        MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
        Jan90.877.364.4
        Feb90.376.964.5
        Mar85.972.960.6
        Apr79.16755.2
        May71.960.348.7
        Jun67.456.445
        Jul65.354.743.5
        Aug67.656.845.5
        Sep69.459.147.5
        Oct75.764.152
        Nov80.568.656.8
        Dec8572.660.5

        Show Celsius

        MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
        Jan32.725.218
        Feb32.424.918.1
        Mar29.922.715.9
        Apr26.219.412.9
        May22.215.79.3
        Jun19.713.67.2
        Jul18.512.66.4
        Aug19.813.87.5
        Sep20.815.18.6
        Oct24.317.811.1
        Nov26.920.313.8
        Dec29.422.615.8

        Precipitation (Rain or Snow)

        If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Perth are February, March, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid January. For example, on the week of January 8th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late July with an average of 3 days of significant precipitation the week of July 23rd.

        When can you find snow in Perth? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

        Chanceof Precipitation

        The graph below shows the % chance of rainy and snowy days in Perth.

        Key
        Days with precipitation

        Snow on the Ground

        The graph below shows the average snow on the ground in Perth (in).

        Key
        Snow depth

        Average Rain and Snow by Month

        Show Inches

        MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
        Jan4%00.4
        Feb3%00.5
        Mar4%00.7
        Apr12%02
        May20%03.3
        Jun29%04.1
        Jul38%05.5
        Aug30%04
        Sep30%03.4
        Oct10%01.2
        Nov8%01.1
        Dec5%00.7

        Show Centimeters

        MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
        Jan401
        Feb301.3
        Mar401.8
        Apr1205.1
        May2008.4
        Jun29010.4
        Jul38014
        Aug30010.2
        Sep3008.6
        Oct1003
        Nov802.8
        Dec501.8

         

        Humidity and Wind

        Perth has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is January (41.3% relative humidity), and the most humid month is July (68.1%).

        Wind in Perth is usually calm. The windiest month is January, followed by December and February. January’s average wind speed of around 7 knots (8.1 MPH or 13 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid January where average top sustained speeds reach 11.3 knots, which is considered a moderate breeze.

        Relative Humidity (%)

        The graph below shows the average % humidity by month in Perth.

        Key
        Avg. Relative Humidity

        Wind

        The graph below shows wind speed (max and average) in knots.

        Key
        Max Sustained Wind
        Average Daily Wind

        Average Wind Speeds

        Show Wind Speeds

        All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

        MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
        Jan7Gentle breeze10.9Gentle breeze
        Feb6.6Light breeze10.2Gentle breeze
        Mar6Light breeze9.6Gentle breeze
        Apr4.5Light breeze8.4Gentle breeze
        May3.7Barely noticeable7.5Gentle breeze
        Jun4.1Light breeze7.9Gentle breeze
        Jul4.2Light breeze8.1Gentle breeze
        Aug4.3Light breeze8.3Gentle breeze
        Sep5.5Light breeze9.6Gentle breeze
        Oct5.9Light breeze9.9Gentle breeze
        Nov6.5Light breeze10.5Gentle breeze
        Dec6.9Light breeze10.8Gentle breeze

        Show Relative Humidity by Month

        MonthAvg. Relative Humidity
        Jan41.3%
        Feb43.2%
        Mar45.1%
        Apr54.5%
        May62.4%
        Jun66.3%
        Jul68.1%
        Aug64.4%
        Sep58.7%
        Oct52.4%
        Nov47.4%
        Dec43.8%

         

        Is it Safe to Travel to Perth?

        Our best data indicates this area is generally safe. As of Mar 17, 2019 there are no travel advisories or warnings for Australia; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 17, 2018.

        The Busiest and Least Crowded Months

        The busiest month for tourism in Perth, WT, AU is January, followed by December and September. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Perth in November. Those willing to visit at these times will likely find it the least expensive month.

        Estimated Tourism by Month

         

        Most Popular Months to Visit

        Key
        Tourists Seeking Accommodations

        Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 67.8 in November means 67.8% of the tourists vs. January.



        Overall Perth Travel Experience by Season

        Fall (March through May)

        Humidity and temperatures combine to make this season feel warm. Highs range from 90.3°F (32.4°C) and 69.9°F (21.1°C) with colder temperatures in the later months. Rain is rare with 1 to 6 days of significant precipitation per month. Fall is the second busiest for tourism, which makes it a good time for those looking for things to do.

        Winter (June through August)

        The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 9 to 12 days of precipitation per month. June – August is the slowest season for tourism in Perth, so lodging and other accommodations may cost less than usual.

        Spring (September through November)

        Spring daily highs range from 81.9°F (27.7°C) and 68.9°F (20.5°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 2 to 9 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

        Summer (December through February)

        Weather is perfect this time of year in Perth to be enjoyable for warm weather travelers. The average high during this season is between 92.5°F (33.6°C) and 80°F (26.7°C). On average, it rains or snows a smalll amount: 1 to 2 times per month. These times of year are the busiest with tourists.

         

        Best Times to TravelAustralia › Perth, WT, AU


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