The best times to visit Perth for ideal weather are

August 27th to June 10th

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

 


Perth Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Perth

    Temperature

    Average temperatures in Perth vary very little and are temperate for much of the year. The area is in the top 37 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Perth, the hottest months are February, January, and then March. See average monthly temperatures below. The warmest time of year is generally mid-February where highs are regularly around 63.7°F (17.6°C) with temperatures rarely dropping below 48.4°F (9.1°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

    Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
    Jan 85 73.3 62.8
    Feb 85.2 73.5 63.4
    Mar 81 70.2 60.8
    Apr 74.8 65.8 58
    May 68 60.6 53.5
    Jun 63.7 57 50.3
    Jul 61.6 55 48.4
    Aug 63.6 56.4 49.7
    Sep 65.1 57.4 50.2
    Oct 70.9 61.7 53.4
    Nov 75.6 65.4 56.6
    Dec 79.8 69 59.3

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 29.4 22.9 17.1
    Feb 29.6 23.1 17.4
    Mar 27.2 21.2 16
    Apr 23.8 18.8 14.4
    May 20 15.9 11.9
    Jun 17.6 13.9 10.2
    Jul 16.4 12.8 9.1
    Aug 17.6 13.6 9.8
    Sep 18.4 14.1 10.1
    Oct 21.6 16.5 11.9
    Nov 24.2 18.6 13.7
    Dec 26.6 20.6 15.2

     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of precipitation in Perth are July, August, and then June. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are only 0.2 days of precipitation on average. By contrast, it’s most likely to rain or snow in late July with an average of 4.5 days with 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.

    Chance of 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

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 7.1 0 0.01
    Feb 7.1 0 0.02
    Mar 11.4 0 0.02
    Apr 25.7 0 0.07
    May 35.7 0 0.12
    Jun 50 0 0.15
    Jul 60 0 0.21
    Aug 51.4 0 0.15
    Sep 50 0 0.14
    Oct 28.6 0 0.05
    Nov 21.4 0 0.04
    Dec 14.3 0 0.03

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 7.1 0 0.03
    Feb 7.1 0 0.05
    Mar 11.4 0 0.05
    Apr 25.7 0 0.18
    May 35.7 0 0.3
    Jun 50 0 0.38
    Jul 60 0 0.53
    Aug 51.4 0 0.38
    Sep 50 0 0.36
    Oct 28.6 0 0.13
    Nov 21.4 0 0.1
    Dec 14.3 0 0.08

     

    Humidity and Wind

    Perth has slightly low to average humidity compared to most tourist destinations. The least humid month is February (49.6% relative humidity), and the most humid month is July (67.9%).

    Wind in Perth is usually stronger than usual. The windiest month is January, followed by December and February. January’s average wind speed of around 12.8 knots (14.7 MPH or 23.7 KPH) is considered “moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late January and early February where average top sustained speeds reach 18.5 knots, which is considered a fresh 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.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 12.8 a moderate breeze 18.1 a fresh breeze
    Feb 12.1 a moderate breeze 17.5 a fresh breeze
    Mar 11.4 a moderate breeze 16.7 a fresh breeze
    Apr 10 a gentle breeze 14.7 a moderate breeze
    May 9.9 a gentle breeze 14.2 a fresh breeze
    Jun 10.9 a gentle breeze 15.2 a moderate breeze
    Jul 10.8 a gentle breeze 15.6 a fresh breeze
    Aug 10.2 a gentle breeze 15 a moderate breeze
    Sep 11.4 a moderate breeze 16.6 a fresh breeze
    Oct 11.1 a moderate breeze 16.2 a moderate breeze
    Nov 12 a moderate breeze 17 a fresh breeze
    Dec 12.6 a moderate breeze 17.9 a fresh breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 49.8
    Feb 49.6
    Mar 50.9
    Apr 56.1
    May 61.3
    Jun 64.1
    Jul 67.9
    Aug 66.5
    Sep 64.5
    Oct 60.2
    Nov 54.6
    Dec 51.1

     

    Is it Safe to Travel to Perth?

    As of 5/2/2017 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.
     

    The Busiest and Least Crowded Months

    The busiest month for tourism in Perth, Australia 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. 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 63.3°F (17.4°C) and 50.2°F (10.1°C) with colder temperatures in the later months. Rain is somewhat common with 4 to 11 days of precipitation per month. Fall is busy for tourism, which makes it a good time for those looking for things to do.

    Winter (June through August)

    The middle-year months have cold weather with high temperatures that are brisk. These months see moderate precipitation with 15 to 19 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 57.4°F (14.1°C) and 48.6°F (9.2°C), which will feel comfortable given the humidity and wind. It rains or snows a great amount: 6 to 15 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be affordably 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 63.7°F (17.6°C) and 56.3°F (13.5°C). On average, it rains or snows a normal amount: 2 to 4 times per month. These times of year are the busiest with tourists.