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Forecast

Balcatta (31.8638°S, 115.8172°E, 19m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TOMORROW
    Mostly sunny 10° 19°
    mostly sunny
    Chance of rain: 5%
    Likely amount: < 1mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    6:37am WST 7:02am WST 5:44pm WST 6:09pm WST
    NOW
    12.5° Feels Like: 9.8°
    Relative Humidity: 80%
    Dew: 9.1°
    Wind: S 13km/h
    Gust: 24km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1015.8hPa
  3. Today Weather

    Balcatta
    Now
    12.9°c
    Feels Like:
    9.6°
    Wind:
    S 17km/h
    Gusts:
    26km/h
    Humidity:
    82%
    Mostly sunny
     
    10°
    Min
    19°
    Max
    Today in Balcatta
    Partly cloudy. Winds S/SE 15 to 25 km/h becoming light in the late evening.
    Tomorrow
    Mostly sunny
    10°
    Min
    19°
    Max
    Partly cloudy. Light winds becoming E/SE 15 to 20 km/h in the morning then becoming light in the early afternoon.
  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Partly cloudy. Winds S/SE 15 to 25 km/h becoming light in the late evening.

    Forecast for Balcatta (31.8638°S, 115.8172°E, 19m AMSL)
      Wed Thu Fri Sat Sun Mon Tue
    Summary Mostly sunny Mostly sunny Mostly sunny Mostly sunny Showers Showers Showers
    Minimum 10° 11° 11° 13°
    Maximum 19° 17° 17° 19° 17° 18° 20°
    Chance of rain 5% 5% 5% 70% 90% 90% 90%
    Likely amount < 1mm < 1mm < 1mm 1-5mm 20-40mm 20-40mm 5-10mm
    UV index Moderate Moderate Moderate Moderate - - -
    Frost risk Nil Nil Nil Nil Nil Nil Nil
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 21
    (km/h)
    16
    (km/h)
    13
    (km/h)
    10
    (km/h)
    18
    (km/h)
    14
    (km/h)
    26
    (km/h)
    20
    (km/h)
    37
    (km/h)
    32
    (km/h)
    24
    (km/h)
    29
    (km/h)
    27
    (km/h)
    26
    (km/h)
    Wind direction S S SE SE E ENE ENE ENE NE NNE NNW NW WNW W
    Relative humidity 79% 58% 79% 53% 77% 52% 65% 46% 72% 82% 84% 79% 84% 74%
    Dew point 10°C 10°C 8°C 7°C 8°C 7°C 6°C 7°C 10°C 12°C 12°C 13°C 14°C 14°C
  9. 28 Day Rainfall forecast

    Balcatta Rain Forecast


    Balcatta 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    5
    6
    7
    8
    HIGH
    9
    HIGH
    10
    HIGH
    11
    LOW
    12
    13
    LOW
    14
    LOW
    15
    HIGH
    16
    HIGH
    17
    MEDIUM
    18
    MEDIUM
    19
    MEDIUM
    20
    21
    22
    23
    LOW
    24
    25
    26
    LOW
    27
    LOW
    28
    MEDIUM
    29
    MEDIUM
    30
    LOW
    31
    LOW
    Sep 1
    MEDIUM
    2
    MEDIUM
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug 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 southwest Indian Ocean, New Zealand, and the southeast Pacific.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 16 August to 20 August, 21 August to 25 August, and 7 September to 11 September. Rain events originating in the tropics and moving south are possible about 10 August to 14 August, and 17 August to 21 August. Over Western Australia the strongest cold fronts should occur about 13 August to 17 August, 18 August to 22 August, and 22 August to 26 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

    Balcatta Rain Forecast


    Balcatta 12-month Rainfall Forecast
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    2020
    2021
    6
    6
    5
    7
    6
    8
    7
    5
    4
    3
    1
    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 Jul 17

    ENSO status: La Nina Watch IOD status: Neutral SAM status: Trending neutral to positive Sea surface temperatures (SSTs) across the equatorial central Pacific have continued to exhibit some cooling over the past month, with the Nino3.4 index registering a value of -0.1 in June. The Southern Oscillation Index (SOI) recorded a value of -9.6 during the same month. The current outlook suggests cooler than average SSTs will continue across the equatorial Pacific Ocean during winter, potentially reaching La Nina thresholds during 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 55:50 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. Three of the six international models indicate a negative IOD becomingestablished during the Austral winter or early spring, with the remaining three indicating a neutral phase. Of the three neutral models, two are trending slightly negative within the neutral zone by early spring, while one model (BoM’s outlook) is trending positive. The BoM model does trend to neither positive or negative by late spring. In terms of precipitation across Australia, the current short-term outlook continues to favour below average rainfall during July, except for NSW and Qld east of the divide where there are indications of above average rainfall. The below average rainfall forecast for July is driven by the breakdown of what was likely to be a negative IOD until a late season tropical cyclone (Mangga) cooled waters off the northwest coast. The above average rainfall forecast for eastern NSW and Qld is driven by the likelihood of coastal troughs, rainfall in the wake of cold fronts and moist trade winds in the northeast. Models then suggest above average rainfall for most of the easterntwo-thirds of the country, and central western and inland southern WA, for late winter and early spring. Southeast SA, much of Victoria, western and central Tasmania and southwest WA are not showing any signals of above or below average rainfall during this period, most likely due to a trending positive SAM. The SAM has been mainly negative in June and early July. The northern Australian dry season is continuing, with northern WA likely to see less rainfall than northern NT and QLD due to dry winds.

  11. Long range rainfall forecast

    Balcatta Rain Forecast


    Balcatta 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    5
    6
    7
    8
    HIGH
    9
    HIGH
    10
    HIGH
    11
    LOW
    12
    13
    LOW
    14
    LOW
    15
    HIGH
    16
    HIGH
    17
    MEDIUM
    18
    MEDIUM
    19
    MEDIUM
    20
    21
    22
    23
    LOW
    24
    25
    26
    LOW
    27
    LOW
    28
    MEDIUM
    29
    MEDIUM
    30
    LOW
    31
    LOW
    Sep 1
    MEDIUM
    2
    MEDIUM
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug 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 southwest Indian Ocean, New Zealand, and the southeast Pacific.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 16 August to 20 August, 21 August to 25 August, and 7 September to 11 September. Rain events originating in the tropics and moving south are possible about 10 August to 14 August, and 17 August to 21 August. Over Western Australia the strongest cold fronts should occur about 13 August to 17 August, 18 August to 22 August, and 22 August to 26 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

    Balcatta Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Friday
    Jul 31
    8.7 °C 19.8 °C
    0.0 mm
    Saturday
    Aug 01
    7.2 °C 19.2 °C
    0.0 mm
    Sunday
    Aug 02
    5.2 °C 19.2 °C
    0.0 mm
    Monday
    Aug 03
    6.9 °C 12.1 °C
    4.8 mm
    Tuesday
    Aug 04
    6.9 °C 16.0 °C
    10.2 mm
    Legend
  14. Almanac

    Almanac


    Balcatta minimum temp history (31.8638°S, 115.8172°E, 19m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 19.2° 01/08/2020 Coldest this month 5.2° 02/08/2020
    Hottest on record 27.2 26/08/1998 Coldest on record 1.3 21/08/2000
    Hottest this year 42.7° 04/02/2020 Coldest this year 3.4° 20/06/2020
    Long term average 19.1° Long term average 8.3°
    Average this month 16.8° Average this month 6.4°
    Hottest August On Record Avg. max. temp. 21.6° 2014 Coldest August on record Avg. min. temp. 5.6° 2008
    Balcatta rainfall history (31.8638°S, 115.8172°E, 19m AMSL)
    RAINFALL
    Wettest This Month 4.8mm 03/08/2020 Total This Month 4.8mm
    1.0 days
    Long Term Average 122.4mm 15.8 days Wettest August on record 175.6mm 2004
    Driest on record 27.8mm 2008
  15. Popup - Radar

    Weather Radar for WA

  16. Year to Date

    Balcatta Year To Date

    Average Rainfall To Aug 570.2mm 75.7 day(s)
    Total For 2020 408.8mm 69.0 day(s)
    Total To This Day 2019 397.8mm 56.0 day(s)
    Wettest Day 38.2mm Jun29
    Lowest Temperature 3.4°C Jun20
    Highest Temperature 42.7°C Feb 4
  17. Popup - Monthly historical

  18. Climatology

    Climate History

    Balcatta Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 31.2 31.6 29.6 25.9 22.3 19.4 18.4 19.1 20.3 23.4 26.6 29.1 24.8
    Mean Min (°C) 18.1 18.3 16.6 13.8 10.5 8.6 7.7 8.3 9.5 11.5 14.3 16.3 12.8
    Mean Rain (mm) 16.7 13.6 20.4 36.3 90.3 126.0 144.5 122.4 87.2 38.6 23.3 10.1 727.1
    Mean Rain Days 2.8 2.3 4.6 6.8 11.5 14.9 17.0 15.8 14.8 8.9 5.8 3.6 105.0