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Forecast

Postans (32.2197°S, 115.8057°E, 29m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TOMORROW
    Sunny 16° 33°
    Chance of rain: 5%
    Likely amount: < 1mm
    First
    light     		Sunrise Sunset Last light
    Sunrise Sunset
    4:43am WST 5:10am WST 6:52pm WST 7:19pm WST
    NOW
    27.8° Feels Like: 24.9°
    Relative Humidity: 30%
    Dew: 8.6°
    Wind: ESE 13km/h
    Gust: 17km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1020.2hPa

  3. Today Weather

    Postans
    Now
    28.8°c
    Feels Like:
    23.6°
    Wind:
    E 22km/h
    Gusts:
    26km/h
    Humidity:
    24%
    Sunny
     
    16°
    Min
    33°
    Max
    Today in Postans
    Sunny. Winds E 15 to 25 km/h shifting S/SW 20 to 30 km/h in the early afternoon then tending S/SE 15 to 20 km/h in the evening. Overnight temperatures falling to between 14 and 18 with daytime temperatures reaching 32 to 37.
    Tomorrow
    Sunny
    16°
    Min
    33°
    Max
    Very hot and sunny. Winds E/SE 15 to 25 km/h tending S/SW 20 to 30 km/h in the middle of the day then tending SE in the evening. Overnight temperatures falling to between 16 and 19 with daytime temperatures reaching 32 to 40.

  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours

  8. 7 day forecast

    Today: Sunny. Winds E 15 to 25 km/h shifting S/SW 20 to 30 km/h in the early afternoon then tending S/SE 15 to 20 km/h in the evening. Overnight temperatures falling to between 14 and 18 with daytime temperatures reaching 32 to 37.

    Forecast for Postans (32.2197°S, 115.8057°E, 29m AMSL)
      Wed Thu Fri Sat Sun Mon Tue
    Summary Sunny Sunny Sunny Sunny Mostly sunny Mostly sunny Mostly sunny
    Minimum 16° 17° 17° 18° 15° 14° 13°
    Maximum 33° 33° 34° 32° 28° 27° 23°
    Chance of rain 5% 5% 5% 5% 5% 30% 5%
    Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm
    UV index Extreme Extreme Extreme Extreme - - -
    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 17
    (km/h)     		18
    (km/h)     		6
    (km/h)     		22
    (km/h)     		19
    (km/h)     		14
    (km/h)     		11
    (km/h)     		16
    (km/h)     		9
    (km/h)     		19
    (km/h)     		14
    (km/h)     		26
    (km/h)     		15
    (km/h)     		28
    (km/h)
    Wind direction ENE SW SE SW E SW NE W WSW WSW SSW SW S SW
    Relative humidity 37% 32% 34% 32% 41% 30% 44% 43% 66% 55% 58% 50% 64% 57%
    Dew point 9°C 14°C 10°C 14°C 10°C 14°C 14°C 17°C 16°C 18°C 14°C 15°C 12°C 14°C

  9. 28 Day Rainfall forecast

    Postans Rain Forecast

    Postans 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    LOW
    25
    LOW
    26
    LOW
    27
    28
    29
    30
    MEDIUM
    Dec 1
    LOW
    2
    MEDIUM
    3
    LOW
    4
    MEDIUM
    5
    MEDIUM
    6
    LOW
    7
    MEDIUM
    8
    LOW
    9
    10
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Nov12

    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 South Africa, Western Australia, eastern Australia, 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 27 November to 1 December, 7 December to 11 December, and 14 December to 18 December. Rain events originating in the tropics and moving south are possible about 19 November to 23 November, and 15 December to 19 December. Over Western Australia the strongest cold fronts should occur about 18 November to 22 November, 27 November to 1 December, and 14 December to 18 December.

    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

    Postans Rain Forecast

    Postans 12-month Rainfall Forecast
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    2019
    2020
    6
    4
    7
    8
    5
    5
    6
    4
    4
    5
    9
    3
    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 Nov 8

    ENSO status: Neutral IOD status: Positive Sea surface temperatures (SSTs) across the equatorial central Pacific warmed up slightly over the past few weeks. As a reflection, the Nino3.4 index lingered between 0.5 and 0.7 throughout the month of October. The Southern Oscillation Index (SOI) recorded a value of -5.6 during the past month. The current outlook consensus suggests warmer than average SSTs will persist across the equatorial Pacific Ocean through the coming months, but remaining within neutral values. Five out of eight international models maintain a warmer than average Pacific Ocean through the end of 2019 and first quarter of 2020, however, none of these reaching El Nino thresholds. The IRI ENSO forecast continues to suggest less than 40% of another El Nino developing over the next 12 months, with a neutral ENSO the most likely outcome. To the west of Australia, the Indian Ocean Dipole (IOD) remains strongly positive, with the highest positive value since the early 2000s. All six international models maintain a strong positive event until December. In terms of rainfall, there is little variation to the outlook issued last month. The climate outlook for October continues to favour below average rainfall for most of Australia, in particular the eastern half of the continent. During Positive IODs, central and southeastern Australia tend to see a reduction in rainfall during spring, due to a reduction of moisture streaming from the northwest. For northern Australia, the current outlook is for a late onset of the wet season across the Northern Territory and Queensland. Thus far, Darwin and South Eastern Qld have seen the onset of the wet season this year though a week later than usual. Further south, a negative trend in the Southern Annular Mode (SAM) will continue to enhance frontal activity over the far south during October and early. This is likely to offset the Positive IOD in far southern Victoria and western Tasmania, which could see average-to-above average rainfall during October and early December. Looking further ahead, with no significant signature from ENSO, there are no significant climate drivers tilting the balance towards a drier or wetter summer. The current outlook suggest neutral odds.

  11. Long range rainfall forecast

    Postans Rain Forecast

    Postans 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    LOW
    25
    LOW
    26
    LOW
    27
    28
    29
    30
    MEDIUM
    Dec 1
    LOW
    2
    MEDIUM
    3
    LOW
    4
    MEDIUM
    5
    MEDIUM
    6
    LOW
    7
    MEDIUM
    8
    LOW
    9
    10
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Nov12

    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 South Africa, Western Australia, eastern Australia, 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 27 November to 1 December, 7 December to 11 December, and 14 December to 18 December. Rain events originating in the tropics and moving south are possible about 19 November to 23 November, and 15 December to 19 December. Over Western Australia the strongest cold fronts should occur about 18 November to 22 November, 27 November to 1 December, and 14 December to 18 December.

    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

    Postans Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Friday
    Nov 08     		14.9 °C 31.6 °C
    0.0 mm
    Saturday
    Nov 09     		19.8 °C 38.1 °C
    0.0 mm
    Sunday
    Nov 10     		18.6 °C 23.5 °C
    0.0 mm
    Monday
    Nov 11     		15.0 °C 24.0 °C
    0.0 mm
    Tuesday
    Nov 12     		14.0 °C 30 °C
    0.0 mm
    Legend

  14. Almanac

    Almanac

    Postans minimum temp history (32.2197°S, 115.8057°E, 29m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 38.1° 09/11/2019 Coldest this month 11.9° 01/11/2019
    Hottest on record 37.8 12/11/2007 Coldest on record 8.5 02/11/2005
    Hottest this year 38.1° 09/11/2019 Coldest this year 7.1° 18/06/2019
    Long term average 23.8° Long term average 15.8°
    Average this month 23.6° Average this month 14.9°
    Hottest November On Record Avg. max. temp. 27.1° 2010 Coldest November on record Avg. min. temp. 14.0° 2005
    Postans rainfall history (32.2197°S, 115.8057°E, 29m AMSL)
    RAINFALL
    Wettest This Month 4.4mm 01/11/2019 Total This Month 6.6mm
    2.0 days
    Long Term Average 23.9mm 6.3 days Wettest November on record 87.0mm 2010

  15. Popup - Radar

  16. Year to Date

    Postans Year To Date

    Average Rainfall To Nov 598.0mm 113.1 day(s)
    Total For 2019 504.2mm 84.0 day(s)
    Total To This Day 2018 632.6mm 109.0 day(s)
    Wettest Day 52.2mm Jul 5
    Lowest Temperature 7.1°C Jun18
    Highest Temperature 38.1°C Nov 9

  17. Popup - Monthly historical

  18. Climatology

    Postans Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 27.5 28.4 27.0 23.8 21.3 19.0 17.7 18.2 18.9 21.0 23.8 25.4 22.7
    Mean Min (°C) 19.0 19.4 18.2 16.1 14.0 12.1 11.0 11.3 11.9 13.6 15.8 17.2 15.0
    Mean Rain (mm) 10.9 16.5 16.0 38.6 78.2 109.3 114.2 93.6 67.4 29.4 23.9 10.9 599.5
    Mean Rain Days 2.7 2.1 4.1 8.3 12.1 15.8 18.9 17.5 15.7 9.6 6.3 3.9 105.5

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