Perth monthly weather averages

  • Average daytime temperature

    The bar chart below shows the average monthly peak daytime temperatures at Perth

    Perth average temperature chart
    Average monthly temperatures in Perth (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 30.7 30.9 28.7 24.4 20.9 18.4 17.4 17.8 19.5 21.8 24.9 28
    °F 87.2 87.7 83.7 76 69.6 65.2 63.3 64 67.1 71.3 76.8 82.4

    Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

  • Average rainfall & rainy days

    The graph below shows the average rainfall and number of rainy days per month.

    Average monthly rainfall in Perth (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 8 18 15 45 112 177 169 118 71 52 25 13
    inches 0.3 0.7 0.6 1.8 4.4 7 6.7 4.6 2.8 2.1 1 0.5
    Rainy days 3 6 6 9 12 14 15 13 10 9 4 4
  • Average daily sunshine

    The bar chart below shows the average daily sunshine hours in Perth

    Average daily sunshine Perth
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 12 11 9.4 7.4 6.2 5.5 5.8 7 8 9 10.3 11.6
  • Day / night temperatures

    The graph below shows the daily range of temperatures for each month.

    Maximum and minimum daily temperatures in Perth (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C 17.6 18.2 16.6 13.7 11.1 9.8 8.6 8.6 9.7 11.1 13.5 15.7
    Max °C 31 31.3 29 24.7 21.2 18.7 17.6 18 19.8 22.1 25.2 28.3
    Min °F 63.7 64.7 61.9 56.7 51.9 49.6 47.5 47.5 49.4 52 56.2 60.3
    Max °F 75.7 76.5 73 66.6 61 57.6 55.6 55.9 58.5 61.9 66.7 71.6
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Perth in degrees centigrade and fahrenheit
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 21.7 22.4 22.7 22.5 22 21.2 20.1 19.3 19.1 19.2 19.8 20.8
    °F 71 72.2 72.8 72.5 71.6 70.1 68.2 66.8 66.3 66.5 67.7 69.4
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Perth (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 20 19 18 16 16 17 17 16 17 18 19 19
    mph 12 12 11 10 10 10 10 10 10 11 12 12

    A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

  • Relative humidity

    The graph below shows the average relative humidity.

    Average relative humidity in Perth
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    41% 43% 46% 55% 62% 70% 71% 67% 62% 54% 48% 44%
Perth

Other monthly averages

Perth weather stats

Perth weather statistics
Hottest month: February 30.9°C 87.6°F
Driest month: January 8mm 0.3ins
Sunniest month: January 12hrs
Coldest month: July 17.4°C 63.3°F
Wettest month: June 177mm 7ins
Warmest sea: March 22.7°C 72.9°F
Map showing location of Perth (-31.95224, 115.8614)

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