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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

    TODAY
    Late shower 11° 23°
    late shower
    Chance of rain: 90%
    Likely amount: 5-10mm
    First
    light     		Sunrise Sunset Last light
    Sunrise Sunset
    6:50am WST 7:17am WST 5:25pm WST 5:52pm WST
    NOW
    14.2° Feels Like: 9.5°
    Relative Humidity: 49%
    Dew: 3.7°
    Wind: NE 17km/h
    Gust: 19km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1018.9hPa

  3. Today Weather

    Perth Airport
    Now
    13.0°c
    Feels Like:
    10.0°
    Wind:
    NE 9km/h
    Gusts:
    11km/h
    Humidity:
    55%
    Late shower
     
    11°
    Min
    23°
    Max
    Today in Perth Airport
    Partly cloudy. High chance of showers, most likely during this evening. The chance of a thunderstorm during this evening. Winds NE 15 to 25 km/h tending N in the middle of the day then becoming light in the early afternoon.
    Tomorrow
    Showers
    13°
    Min
    19°
    Max
    Cloudy. Very high (near 100%) chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the early morning. Winds N/NW 15 to 20 km/h turning W 20 to 30 km/h during the morning.

  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours

  8. 7 day forecast

    Today: Partly cloudy. High chance of showers, most likely during this evening. The chance of a thunderstorm during this evening. Winds NE 15 to 25 km/h tending N in the middle of the day then becoming light in the early afternoon.

    Forecast for Perth Airport (31.9324°S, 115.9551°E, 8m AMSL)
      Sun Mon Tue Wed Thu Fri Sat
    Summary Late shower Showers Showers easing Possible shower Mostly sunny Mostly sunny Sunny
    Minimum 11° 13° 11° 9° 6° 5° 6°
    Maximum 23° 19° 18° 18° 16° 18° 20°
    Chance of rain 90% 70% 80% 10% 5% 5% 5%
    Likely amount 5-10mm 1-5mm 1-5mm < 1mm < 1mm < 1mm < 1mm
    UV index Moderate Low Moderate Moderate Moderate - -
    Frost risk Nil Nil Nil Nil Nil Slight Nil
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 17
    (km/h)     		16
    (km/h)     		16
    (km/h)     		28
    (km/h)     		11
    (km/h)     		20
    (km/h)     		7
    (km/h)     		14
    (km/h)     		12
    (km/h)     		12
    (km/h)     		17
    (km/h)     		15
    (km/h)     		19
    (km/h)     		16
    (km/h)
    Wind direction NE NNE NW WNW WNW W ESE SW ESE S E E ENE ENE
    Relative humidity 50% 40% 75% 57% 74% 59% 83% 56% 80% 47% 75% 45% 64% 38%
    Dew point 5°C 8°C 12°C 9°C 10°C 9°C 10°C 8°C 6°C 4°C 5°C 5°C 4°C 5°C

  9. 28 Day Rainfall forecast

    Perth Airport Rain Forecast

    Perth Airport 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    5
    HIGH
    6
    MEDIUM
    7
    LOW
    8
    LOW
    9
    10
    11
    12
    13
    LOW
    14
    MEDIUM
    15
    HIGH
    16
    LOW
    17
    LOW
    18
    LOW
    19
    20
    MEDIUM
    21
    LOW
    22
    MEDIUM
    23
    MEDIUM
    24
    LOW
    25
    LOW
    26
    27
    28
    LOW
    29
    MEDIUM
    30
    MEDIUM
    31
    HIGH
    Aug 1
    MEDIUM
    2
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Jul 4

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are four main troughs. Currently the most significant troughs are near the longitudes of South Africa, the Indian Ocean, New Zealand, the south Pacific, and South America.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 12 July to 16 July, 17 July to 21 July, and 5 August to 9 August. Rain events originating in the tropics and moving south are possible about 11 July to 15 July, and 25 July to 29 July. Over Western Australia the strongest cold fronts should occur about 12 July to 16 July, 17 July to 21 July, and 3 August to 7 August.

    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 Airport Rain Forecast

    Perth Airport 12-month Rainfall Forecast
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    2020
    2021
    4
    5
    6
    5
    7
    8
    8
    7
    7
    1
    9
    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 SAM status: Trending positive Sea surface temperatures (SSTs) across the equatorial central Pacific exhibited significant cooling over the past month, with the Nino3.4 index registering a value of -0.1in May. On the other hand, the Southern Oscillation Index (SOI) recorded a value of 2.8 during the same month. The current outlook suggests cooler than average SSTs will take hold across the equatorial Pacific Ocean during winter, potentially reaching La Nina thresholds by mid-spring. All eight international models continue to suggest a cooler side of neutral for the region throughout the remainder of the Austral winter and through spring. The current International Research Institute for Climate and Society (IRI) outlook suggests a 45:40 chance for La Nina:Neutral conditions by the end of the Austral spring. To the west of Australia, the Indian Ocean Dipole (IOD) remains neutral, normal for this time of the year. However, out of season Tropical CycloneMangga brought some significant cooling to the sea surface temperatures to the northwest of Australia late in May. This disrupted the warming trend in the region that would have led to a negative IOD by mid-winter. Nonetheless, all but one of the six main international models (BoMs outlook), continue to hint at a possible negative IOD establishing later in winter/first half of spring. In terms of precipitation across Australia, the current short-term outlook now favours below average rainfall for most of the country for the remainder of June and early July. This outlook is mainly driven by cooler SSTs across northwestern Australia, reducing the amount of available moisture in the atmosphere. As discussed earlier, tropical cyclone Mangga was a key player in the cooling of the SSTs off the northwest coast. Most models, however, are indicating a positive IOD is still on the cards later in winter and through spring, bringing a wetter outlook for most of the southern half of the country from mid-to-lateJuly. Across parts of southern Vic, NSW and Qld (east of the Great Dividing Range), southwestern WA and Tasmania, the outlook continues to favour average-to-slightly below average rainfall over the coming months as these regions transition to their ‘drier’ part of the year (eastern seaboard) or tend to be less influenced by the IOD (SW WA and Tas) but more on the phases of the Southern Annular Mode (SAM).

  11. Long range rainfall forecast

    Perth Airport Rain Forecast

    Perth Airport 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    5
    HIGH
    6
    MEDIUM
    7
    LOW
    8
    LOW
    9
    10
    11
    12
    13
    LOW
    14
    MEDIUM
    15
    HIGH
    16
    LOW
    17
    LOW
    18
    LOW
    19
    20
    MEDIUM
    21
    LOW
    22
    MEDIUM
    23
    MEDIUM
    24
    LOW
    25
    LOW
    26
    27
    28
    LOW
    29
    MEDIUM
    30
    MEDIUM
    31
    HIGH
    Aug 1
    MEDIUM
    2
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Jul 4

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are four main troughs. Currently the most significant troughs are near the longitudes of South Africa, the Indian Ocean, New Zealand, the south Pacific, and South America.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 12 July to 16 July, 17 July to 21 July, and 5 August to 9 August. Rain events originating in the tropics and moving south are possible about 11 July to 15 July, and 25 July to 29 July. Over Western Australia the strongest cold fronts should occur about 12 July to 16 July, 17 July to 21 July, and 3 August to 7 August.

    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 Airport Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Tuesday
    Jun 30     		11.1 °C 19.1 °C
    1.2 mm
    Wednesday
    Jul 01     		11.2 °C 16.5 °C
    4.2 mm
    Thursday
    Jul 02     		3.6 °C 17.9 °C
    0.2 mm
    Friday
    Jul 03     		6.1 °C 19.7 °C
    0.0 mm
    Saturday
    Jul 04     		12.9 °C 22.3 °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 19.7° 03/07/2020 Coldest this month 3.6° 02/07/2020
    Hottest on record 25.7 21/07/1994 Coldest on record -1.0 03/07/2010
    Hottest this year 43.3° 04/02/2020 Coldest this year 2.3° 19/05/2020
    Long term average 17.9° Long term average 8.0°
    Average this month 18.0° Average this month 7.0°
    Hottest July On Record Avg. max. temp. 19.7° 1959 Coldest July on record Avg. min. temp. 5.5° 1957
    Perth Airport rainfall history (31.9324°S, 115.9551°E, 8m AMSL)
    RAINFALL
    Wettest This Month 4.2mm 01/07/2020 Total This Month 4.4mm
    2.0 days
    Long Term Average 155.3mm 17.7 days Wettest July on record 446.7mm 1958
    Driest on record 30.6mm 2012

  15. Popup - Radar

    Weather Radar for WA

  16. Year to Date

    Perth Airport Year To Date

    Average Rainfall To Jul 493.6mm 63.5 day(s)
    Total For 2020 275.6mm 47.0 day(s)
    Total To This Day 2019 229.0mm 38.0 day(s)
    Wettest Day 35.2mm Jun29
    Lowest Temperature 2.3°C May19
    Highest Temperature 43.3°C Feb 4

  17. Popup - Monthly historical

  18. Climatology

    Climate History

    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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