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Forecast

Perth Airport (31.9324°S, 115.9551°E, 8m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TOMORROW
    Possible thunderstorm 9° 16°
    possible thunderstorm
    Chance of rain: 60%
    Likely amount: < 1mm
    First
    light     		Sunrise Sunset Last light
    Sunrise Sunset
    6:20am WST 6:44am WST 5:54pm WST 6:19pm WST
    NOW
    15.2° Feels Like: 12.5°
    Relative Humidity: 91%
    Dew: 13.7°
    Wind: WSW 20km/h
    Gust: WSW 20km/h
    Rainfall since 9am: 7.8mm
    Pressure: 1015.5hPa

  3. Today Weather

    Perth Airport
    Now
    14.9°c
    Feels Like:
    13.2°
    Wind:
    SW 15km/h
    Gusts:
    22km/h
    Humidity:
    93%
    Possible thunderstorm
     
    9°
    Min
    16°
    Max
    Today in Perth Airport
    Partly cloudy. Very high chance of rain, most likely in the early morning. The chance of a thunderstorm in the early morning. Winds W/SW 15 to 25 km/h tending S/SW 20 to 30 km/h in the morning then becoming light in the evening.
    Tomorrow
    Possible thunderstorm
    9°
    Min
    16°
    Max
    Mostly sunny. Light winds.

  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours

  8. 7 day forecast

    Today: Partly cloudy. Very high chance of rain, most likely in the early morning. The chance of a thunderstorm in the early morning. Winds W/SW 15 to 25 km/h tending S/SW 20 to 30 km/h in the morning then becoming light in the evening.

    Forecast for Perth Airport (31.9324°S, 115.9551°E, 8m AMSL)
      Fri Sat Sun Mon Tue Wed Thu
    Summary Possible thunderstorm Mostly sunny Mostly sunny Mostly sunny Mostly sunny Mostly sunny Possible thunderstorm
    Minimum 9° 3° 5° 5° 7° 12° 12°
    Maximum 16° 17° 19° 21° 24° 25° 21°
    Chance of rain 60% 5% 5% 5% 20% 90% 90%
    Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm 5-10mm 20-40mm
    UV index Moderate Moderate Moderate Moderate - - -
    Frost risk Nil Moderate Slight Slight Nil Nil Nil
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 17
    (km/h)     		22
    (km/h)     		14
    (km/h)     		15
    (km/h)     		15
    (km/h)     		14
    (km/h)     		15
    (km/h)     		14
    (km/h)     		20
    (km/h)     		17
    (km/h)     		19
    (km/h)     		20
    (km/h)     		17
    (km/h)     		29
    (km/h)
    Wind direction SW SSW E SSW E SSE E SE ENE ENE NE NNW NNE NNW
    Relative humidity 78% 52% 72% 48% 68% 42% 65% 41% 55% 35% 56% 39% 68% 63%
    Dew point 9°C 6°C 5°C 6°C 5°C 6°C 5°C 8°C 5°C 8°C 9°C 10°C 11°C 14°C

  9. 28 Day Rainfall forecast

    Perth Airport Rain Forecast

    Perth Airport 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    22
    HIGH
    23
    MEDIUM
    24
    25
    26
    27
    LOW
    28
    LOW
    29
    MEDIUM
    30
    HIGH
    31
    MEDIUM
    Sep 1
    LOW
    2
    LOW
    3
    4
    5
    6
    LOW
    7
    8
    LOW
    9
    HIGH
    10
    LOW
    11
    MEDIUM
    12
    LOW
    13
    MEDIUM
    14
    MEDIUM
    15
    HIGH
    16
    LOW
    17
    LOW
    18
    19
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug22

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are three main troughs. Currently the most significant troughs are near the longitudes of the southwest Indian Ocean, the Indian Ocean, and New Zealand.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 31 August to 4 September, 12 September to 16 September, and 25 September to 29 September. Rain events originating in the tropics and moving south are possible about 25 September to 29 September. Over Western Australia the strongest cold fronts should occur about 30 August to 3 September, 11 September to 15 September, and 24 September to 28 September.

  10. 12 Month Rainfall Forecast

    Perth Airport Rain Forecast

    Perth Airport 12-month Rainfall Forecast
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    2019
    2020
    6
    7
    4
    7
    5
    6
    6
    7
    4
    5
    3
    4
    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 Aug 8

    ENSO status: Neutral IOD status: Positive Sea surface temperatures (SST's) continued a cooling trend over the central Pacific during July. The Nino3.4 index lingered at about 0.5 through the month of July. The Southern Oscillation Index (SOI) recorded a value of -5.6 in July, which is now in neutral territory. Current consensus suggests warmer than average SSTs will remain across the equatorial Pacific Ocean through the austral spring, but well within neutral values. Although, six out of eight international models maintain a warmer than average Pacific Ocean through the remainder of 2019, none of these are reaching El Nino thresholds during the 2019/2020 summer. Moreover, the IRI ENSO forecast suggests less than 50% of another El Nino developing over the next 12 months. On the other hand, the Indian Ocean Dipole (IOD) remains strongly positive. Six out of six international models maintain a positive event until mid-spring. The climate outlook for the four weeks left in winter and spring, favours average-to-below average rainfall across the southern half of Australia, in particular over the eastern half of the continent. During Positive IODs, central and southeastern Australia tend to see a reduction in rainfall during the end of winter and the first half of spring due to a reduction of moisture streaming from the northwest. SST's along the eastern seaboard remain significantly warmer than average (especially off NSW) maintaining a high risk of extreme weather events such as East Coast Lows (ECLs). These can bring intense periods of rainfall east of the Great Dividing Range, leading to flash flooding.

  11. Long range rainfall forecast

    Perth Airport Rain Forecast

    Perth Airport 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    22
    HIGH
    23
    MEDIUM
    24
    25
    26
    27
    LOW
    28
    LOW
    29
    MEDIUM
    30
    HIGH
    31
    MEDIUM
    Sep 1
    LOW
    2
    LOW
    3
    4
    5
    6
    LOW
    7
    8
    LOW
    9
    HIGH
    10
    LOW
    11
    MEDIUM
    12
    LOW
    13
    MEDIUM
    14
    MEDIUM
    15
    HIGH
    16
    LOW
    17
    LOW
    18
    19
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug22

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are three main troughs. Currently the most significant troughs are near the longitudes of the southwest Indian Ocean, the Indian Ocean, and New Zealand.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 31 August to 4 September, 12 September to 16 September, and 25 September to 29 September. Rain events originating in the tropics and moving south are possible about 25 September to 29 September. Over Western Australia the strongest cold fronts should occur about 30 August to 3 September, 11 September to 15 September, and 24 September to 28 September.

  12. Popup - Daily historical

  13. Past 5 Days

    Perth Airport Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Sunday
    Aug 18     		1.9 °C 18.6 °C
    0.0 mm
    Monday
    Aug 19     		2.5 °C 19.7 °C
    0.2 mm
    Tuesday
    Aug 20     		4.3 °C 23.2 °C
    0.0 mm
    Wednesday
    Aug 21     		9.8 °C 23.7 °C
    0.0 mm
    Thursday
    Aug 22     		4.2 °C 27 °C
    0.0 mm
    Legend

  14. Almanac

    Almanac

    Perth Airport minimum temp history (31.9324°S, 115.9551°E, 8m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 25.0° 02/08/2019 Coldest this month 1.9° 18/08/2019
    Hottest on record 28.3 11/08/1948 Coldest on record 0.1 15/08/2004
    Hottest this year 42.9° 20/01/2019 Coldest this year 1.5° 18/05/2019
    Long term average 18.6° Long term average 8.0°
    Average this month 19.8° Average this month 7.2°
    Hottest August On Record Avg. max. temp. 21.5° 2014 Coldest August on record Avg. min. temp. 4.9° 1956
    Perth Airport rainfall history (31.9324°S, 115.9551°E, 8m AMSL)
    RAINFALL
    Wettest This Month 23.2mm 17/08/2019 Total This Month 55.8mm
    10.0 days
    Long Term Average 117.8mm 15.8 days Wettest August on record 340.3mm 2014

  15. Popup - Radar

  16. Year to Date

    Perth Airport Year To Date

    Average Rainfall To Aug 611.4mm 79.3 day(s)
    Total For 2019 378.6mm 62.0 day(s)
    Total To This Day 2018 594.8mm 72.0 day(s)
    Wettest Day 41.0mm Jun23
    Lowest Temperature 1.5°C May18
    Highest Temperature 42.9°C Jan20

  17. Popup - Monthly historical

  18. Climatology

    Perth Airport Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 31.8 32.0 29.7 25.6 21.8 19.0 17.9 18.6 20.2 22.7 26.0 29.0 24.5
    Mean Min (°C) 17.1 17.5 15.9 13.0 10.4 9.0 8.0 8.0 8.9 10.3 12.7 14.9 12.1
    Mean Rain (mm) 10.0 15.3 16.4 40.5 98.8 157.3 155.3 117.8 73.1 43.6 26.2 11.2 765.9
    Mean Rain Days 2.5 2.8 4.0 7.4 12.5 16.6 17.7 15.8 13.4 9.4 6.6 4.0 111.4

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