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Forecast

West Swan (31.8482°S, 115.9885°E, 11m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TOMORROW
    Sunny 23°
    Chance of rain: 5%
    Likely amount: < 1mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    6:22am WST 6:47am WST 5:52pm WST 6:17pm WST
    NOW
    15.8° Feels Like: 15.6°
    Relative Humidity: 65%
    Dew: 9.2°
    Wind: CAL 0km/h
    Gust: CAL 0km/h
    Rainfall since 9am: 0.0mm
    Pressure:  
  3. Today Weather

    West Swan
    Now
    15.9°c
    Feels Like:
    12.4°
    Wind:
    E 13km/h
    Gusts:
    13km/h
    Humidity:
    51%
    Sunny
     
    Min
    23°
    Max
    Today in West Swan
    Sunny. Winds E/NE 15 to 20 km/h turning N 15 to 25 km/h in the morning then tending NE 15 to 20 km/h in the late afternoon.
    Tomorrow
    Sunny
    Min
    23°
    Max
    Sunny morning. High chance of showers developing in the late afternoon or evening. The chance of a thunderstorm in the late afternoon or evening. Gusty winds in the evening. Winds NE 15 to 25 km/h turning N/NW 20 to 30 km/h in the late morning.
  4. Radar

  5. Popup Radar

  6. Warnings

    There are no current warnings for West Swan

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Sunny. Winds E/NE 15 to 20 km/h turning N 15 to 25 km/h in the morning then tending NE 15 to 20 km/h in the late afternoon.

    Forecast for West Swan (31.8482°S, 115.9885°E, 11m AMSL)
      Wed Thu Fri Sat Sun Mon Tue
    Summary Sunny Late shower Showers easing Mostly sunny Mostly sunny Mostly sunny Sunny
    Minimum
    Maximum 23° 25° 16° 17° 19° 20° 23°
    Chance of rain 5% 90% 60% 5% 5% 5% 5%
    Likely amount < 1mm 5-10mm < 1mm < 1mm < 1mm < 1mm < 1mm
    UV index Moderate Moderate Moderate - - - -
    Frost risk Slight Nil Nil Moderate Slight Slight Nil
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 20
    (km/h)
    19
    (km/h)
    20
    (km/h)
    26
    (km/h)
    16
    (km/h)
    21
    (km/h)
    14
    (km/h)
    15
    (km/h)
    13
    (km/h)
    13
    (km/h)
    14
    (km/h)
    14
    (km/h)
    22
    (km/h)
    16
    (km/h)
    Wind direction NE NNE NNE NNW SSW SW E SSW E SSW E ESE ENE N
    Relative humidity 50% 33% 40% 32% 80% 56% 71% 48% 66% 44% 70% 40% 53% 38%
    Dew point 2°C 6°C 0°C 7°C 9°C 7°C 3°C 6°C 4°C 7°C 5°C 6°C 4°C 8°C
  9. 28 Day Rainfall forecast

    West Swan Rain Forecast


    West Swan 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    20
    21
    22
    HIGH
    23
    MEDIUM
    24
    25
    26
    27
    LOW
    28
    LOW
    29
    LOW
    30
    MEDIUM
    31
    MEDIUM
    Sep 1
    LOW
    2
    MEDIUM
    3
    LOW
    4
    MEDIUM
    5
    LOW
    6
    MEDIUM
    7
    LOW
    8
    9
    LOW
    10
    11
    12
    LOW
    13
    LOW
    14
    LOW
    15
    MEDIUM
    16
    MEDIUM
    17
    LOW
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug20

    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 South Africa, the southwest 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 25 August to 29 August, 6 September to 10 September, and 18 September to 22 September. Rain events originating in the tropics and moving south are possible about 25 August to 29 August, 29 August to 2 September, and 11 September to 15 September. Over Western Australia the strongest cold fronts should occur about 25 August to 29 August, 31 August to 4 September, and 18 September to 22 September.

  10. 12 Month Rainfall Forecast

    West Swan Rain Forecast


    West Swan 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

    West Swan Rain Forecast


    West Swan 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    20
    21
    22
    HIGH
    23
    MEDIUM
    24
    25
    26
    27
    LOW
    28
    LOW
    29
    LOW
    30
    MEDIUM
    31
    MEDIUM
    Sep 1
    LOW
    2
    MEDIUM
    3
    LOW
    4
    MEDIUM
    5
    LOW
    6
    MEDIUM
    7
    LOW
    8
    9
    LOW
    10
    11
    12
    LOW
    13
    LOW
    14
    LOW
    15
    MEDIUM
    16
    MEDIUM
    17
    LOW
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug20

    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 South Africa, the southwest 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 25 August to 29 August, 6 September to 10 September, and 18 September to 22 September. Rain events originating in the tropics and moving south are possible about 25 August to 29 August, 29 August to 2 September, and 11 September to 15 September. Over Western Australia the strongest cold fronts should occur about 25 August to 29 August, 31 August to 4 September, and 18 September to 22 September.

  12. Popup - Daily historical

  13. Past 5 Days

    West Swan Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Friday
    Aug 16
    4.7 °C 17.7 °C
    0.0 mm
    Saturday
    Aug 17
    5.3 °C 15.8 °C
    22.6 mm
    Sunday
    Aug 18
    2.2 °C 18.5 °C
    0.0 mm
    Monday
    Aug 19
    2.6 °C 19.4 °C
    0.2 mm
    Tuesday
    Aug 20
    4.6 °C 23 °C
    0.0 mm
    Legend
  14. Almanac

    Almanac


    West Swan minimum temp history (31.8482°S, 115.9885°E, 11m 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 19.4° 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
    West Swan rainfall history (31.8482°S, 115.9885°E, 11m 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

    West Swan 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 583.8mm 70.0 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

    West Swan 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