Weather in Perth in September

General weather information about Perth

Average annual temperature is 10.2 °C

Absolute maximum temperature: 34.5 °C

Absolute minimum temperature: -25.1 °C

Number of sunny days: 137 days

Number of rainy days: 196 days

Number of snow days: 32 days

Look at detailed online map of Perth

* Weather data for Perth United States is based on climate observations for 2026 year

Perth air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)8.516.612.228.932.434.531.527.932.328.918.211.4
Average daytime temperature (°C)3.94.96.316.821.824.427.825.022.818.18.35.7
Average temperature (°C)0.2-1.11.19.914.518.822.420.017.912.93.22.1
Average night temperature (°C)-2.9-5.9-3.64.57.714.018.116.013.98.8-0.5-0.4
Absolute minimum temperature (°C)-8.4-25.1-11.6-3.31.17.212.611.18.20.7-5.8-6.6

Perth monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.715.315.013.912.511.09.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)3.85.96.78.211.910.311.39.88.26.76.63.5
Precipitation (mm)88641169454111289172637164147
Sunny days81010141976416161512
Rainy days15917161223252714151013
Snow days894000000056

Perth - weather forecast by months

Perth weather in januaryPerth weather in februaryPerth weather in marchPerth weather in aprilPerth weather in mayPerth weather in junePerth weather in julyPerth weather in augustPerth weather in septemberPerth weather in octoberPerth weather in novemberPerth weather in december

Best time to visit Perth:

The best time to visit Perth during the most sunny months:

  • May — 11.9(h)
  • June — 10.3(h)
  • July — 11.3(h)
  • August — 9.8(h)

Months with the longest average daylight duration in Perth:

  • June — 15.3(h)

The largest precipitation sum in Perth is at

  • July — 289(mm)
  • August — 172(mm)
  • December — 147(mm)

    • Weather forecast in the closest to Perth admin centers

    Weather forecast in the closest towns to Perth

    Explore Perth

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

    When is the best time to visit Perth?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Perth.
    What is the weather like in Perth?
    See average temperature, rainfall and daylight hours for Perth by month in the table above.
    How many sunny days does Perth have?
    The monthly weather statistics above show sunshine and rainfall patterns for Perth throughout the year.