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Forecast

Perth (31.9554°S, 115.8586°E, 5m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Mostly sunny 4° 17°
    mostly sunny
    Chance of rain: 5%
    Likely amount: < 1mm
    First
    light     		Sunrise Sunset Last light
    Sunrise Sunset
    6:50am WST 7:17am WST 5:21pm WST 5:48pm WST
    NOW
    8.7° Feels Like: 7.7°
    Relative Humidity: 99%
    Dew: 8.6°
    Wind: SE 4km/h
    Gust: 6km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1029.9hPa

  3. Today Weather

    Perth
    Now
    9.6°c
    Feels Like:
    8.1°
    Wind:
    E 6km/h
    Gusts:
    9km/h
    Humidity:
    90%
    Mostly sunny
     
    4°
    Min
    17°
    Max
    Today in Perth
    Partly cloudy. Light winds.
    Tomorrow
    Mostly sunny
    5°
    Min
    18°
    Max
    Mostly sunny. Light winds.

  4. Radar

  5. Popup Radar

  6. Warnings

    There are no current warnings for Perth

  7. Next 48 Hours


    Next 48 Hours

  8. 7 day forecast

    Today: Partly cloudy. Light winds.

    Forecast for Perth (31.9554°S, 115.8586°E, 5m AMSL)
      Thu Fri Sat Sun Mon Tue Wed
    Summary Mostly sunny Mostly sunny Mostly sunny Showers Showers Showers Showers
    Minimum 4° 5° 5° 9° 11° 10° 9°
    Maximum 17° 18° 20° 18° 20° 17° 18°
    Chance of rain 5% 5% 40% 90% 90% 90% 70%
    Likely amount < 1mm < 1mm < 1mm 10-20mm 10-20mm 5-10mm 1-5mm
    UV index Moderate Moderate Moderate Low Low - -
    Frost risk Slight Slight Slight Nil Nil Nil Nil
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 5
    (km/h)     		6
    (km/h)     		12
    (km/h)     		12
    (km/h)     		16
    (km/h)     		20
    (km/h)     		28
    (km/h)     		30
    (km/h)     		13
    (km/h)     		24
    (km/h)     		22
    (km/h)     		29
    (km/h)     		9
    (km/h)     		17
    (km/h)
    Wind direction ENE NNE NE NNE ENE NE NNE N WNW WNW W W NE NW
    Relative humidity 91% 52% 80% 50% 73% 43% 58% 81% 88% 66% 87% 67% 83% 60%
    Dew point 6°C 6°C 6°C 7°C 5°C 6°C 6°C 14°C 14°C 13°C 12°C 10°C 10°C 9°C

  9. 28 Day Rainfall forecast

    Perth Rain Forecast

    Perth 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    24
    25
    26
    LOW
    27
    HIGH
    28
    HIGH
    29
    HIGH
    30
    MEDIUM
    Jul 1
    MEDIUM
    2
    LOW
    3
    MEDIUM
    4
    MEDIUM
    5
    6
    7
    MEDIUM
    8
    LOW
    9
    LOW
    10
    HIGH
    11
    MEDIUM
    12
    LOW
    13
    HIGH
    14
    MEDIUM
    15
    LOW
    16
    MEDIUM
    17
    MEDIUM
    18
    MEDIUM
    19
    LOW
    20
    HIGH
    21
    HIGH
    22
    HIGH
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Jun24

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of the southwest Indian Ocean, Western Australia, the south Pacific, the southeast Pacific, and the Atlantic Ocean.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 30 June to 4 July, 21 July to 25 July, and 25 July to 29 July. Rain events originating in the tropics and moving south are possible about 22 June to 26 June. Over Western Australia the strongest cold fronts should occur about 29 June to 3 July, 3 July to 7 July, and 21 July to 25 July.

    Forecast Explanation

    This forecast is produced by a multi-model ensemble consisting of dynamical atmospheric models, which are forced by the latest observed atmosphere, ocean, land and ice conditions. The models are designed to simulate features of the real atmosphere, including the daily movement of long and short wave patterns in the Southern Hemisphere.

    The future probability of rain in each district is estimated using output from the multi-model ensemble, combined with historical information about the difference between the model forecasts and observed rainfall.

    In this deterministic framework the skill of the forecast tends to decrease with time, however the forecasts are updated daily to provide the latest estimates of rainfall probability out to 28 days.

  10. 12 Month Rainfall Forecast

    Perth Rain Forecast

    Perth 12-month Rainfall Forecast
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    2021
    2022
    5
    6
    8
    7
    7
    7
    8
    8
    7
    7
    1
    7
    10
    5
    0
    1
    2 - 3
    4 - 7
    8 - 9
    10
    Well below normal
    Below normal
    Near normal
    Above normal
    Well above normal

    Issue Notes - Issued Jun 15

    ENSO status: Neutral. IOD status: Neutral, although during the past three weeks it has been negative. SAM status: Positive. The El Niño–Southern Oscillation (ENSO) is currently neutral, which is predicted to continue until at least October. The Indian Ocean Dipole (IOD) is currently neutral. although the last 3 weekly values have been negative.The negative value would need to continue for another 5 weeks for a negative IOD to be declared. While a negative IOD has not been officially declared, the negative weekly value may enhance rainfall across central and southern Australia. A negative IOD is forecast during winter or early spring by 3 out of 5 climate models. However, the confidence in the IOD forecast at this time of the year is low, specifically because the models are showing a range of outcomes from mid winter onwards. During winter, much of the Australia is likely to be wetter than normal, apart from far southern WA and SA, southern VIC and much of TAS. The weekly negative IOD valuesmay be influencing this outlook, potentially feeding moisture into cold fronts sweeping across central and southern Australia. Therefore a normal to above normal snow season is forecast. Springs rainfall at this stage is forecast to be above normal for much of the Australia, apart from western TAS. Again, the negative IOD values may be playing a role in this outlook.

  11. Long range rainfall forecast

    Perth Rain Forecast

    Perth 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    24
    25
    26
    LOW
    27
    HIGH
    28
    HIGH
    29
    HIGH
    30
    MEDIUM
    Jul 1
    MEDIUM
    2
    LOW
    3
    MEDIUM
    4
    MEDIUM
    5
    6
    7
    MEDIUM
    8
    LOW
    9
    LOW
    10
    HIGH
    11
    MEDIUM
    12
    LOW
    13
    HIGH
    14
    MEDIUM
    15
    LOW
    16
    MEDIUM
    17
    MEDIUM
    18
    MEDIUM
    19
    LOW
    20
    HIGH
    21
    HIGH
    22
    HIGH
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Jun24

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of the southwest Indian Ocean, Western Australia, the south Pacific, the southeast Pacific, and the Atlantic Ocean.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 30 June to 4 July, 21 July to 25 July, and 25 July to 29 July. Rain events originating in the tropics and moving south are possible about 22 June to 26 June. Over Western Australia the strongest cold fronts should occur about 29 June to 3 July, 3 July to 7 July, and 21 July to 25 July.

    Forecast Explanation

    This forecast is produced by a multi-model ensemble consisting of dynamical atmospheric models, which are forced by the latest observed atmosphere, ocean, land and ice conditions. The models are designed to simulate features of the real atmosphere, including the daily movement of long and short wave patterns in the Southern Hemisphere.

    The future probability of rain in each district is estimated using output from the multi-model ensemble, combined with historical information about the difference between the model forecasts and observed rainfall.

    In this deterministic framework the skill of the forecast tends to decrease with time, however the forecasts are updated daily to provide the latest estimates of rainfall probability out to 28 days.

  12. Popup - Daily historical

  13. Past 5 Days

    Perth Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Saturday
    Jun 19     		4.3 °C 20.0 °C
    0.0 mm
    Sunday
    Jun 20     		9.4 °C 15.7 °C
    24.8 mm
    Monday
    Jun 21     		8.3 °C 14.4 °C
    13.0 mm
    Tuesday
    Jun 22     		1.9 °C 15.8 °C
    0.0 mm
    Wednesday
    Jun 23     		2.8 °C 17.2 °C
    0.0 mm
    Legend

  14. Almanac

    Almanac

    Perth minimum temp history (31.9554°S, 115.8586°E, 5m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 21.8° 05/06/2021 Coldest this month 1.9° 22/06/2021
    Hottest on record 26.2 01/06/2009 Coldest on record -0.7 17/06/2006
    Hottest this year 42.2° 08/01/2021 Coldest this year 1.9° 22/06/2021
    Long term average 19.5° Long term average 8.7°
    Average this month 18.8° Average this month 7.4°
    Hottest June On Record Avg. max. temp. 21.0° 2015 Coldest June on record Avg. min. temp. 5.8° 2006
    Perth rainfall history (31.9554°S, 115.8586°E, 5m AMSL)
    RAINFALL
    Wettest This Month 24.8mm 20/06/2021 Total This Month 70.0mm
    9.0 days
    Long Term Average 127.3mm 14.7 days Wettest June on record 251.0mm 2005
    Driest on record 24.6mm 2006

  15. Popup - Radar

    Weather Radar for Australia

  16. Year to Date

    Perth Year To Date

    Average Rainfall To Jun 304.4mm 42.7 day(s)
    Total For 2021 303.6mm 41.0 day(s)
    Total To This Day 2020 259.6mm 47.0 day(s)
    Wettest Day 46.2mm May 5
    Lowest Temperature 1.9°C Jun22
    Highest Temperature 42.2°C Jan 8

  17. Popup - Monthly historical

  18. Climatology

    Climate History

    Perth Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 31.2 31.5 29.6 26.0 22.3 19.5 18.5 19.1 20.5 23.5 26.7 29.3 24.8
    Mean Min (°C) 18.1 18.3 16.8 13.8 10.5 8.7 7.9 8.3 9.6 11.6 14.3 16.4 12.8
    Mean Rain (mm) 18.4 14.3 20.4 35.4 88.6 127.3 142.3 124.4 82.7 37.1 24.2 10.4 721.4
    Mean Rain Days 2.9 2.4 4.7 6.8 11.2 14.7 17.2 15.9 14.6 8.9 5.7 3.5 107.7

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