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Forecast

Osterley (32.7248°S, 151.7008°E, 22m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Hazy 16° 35°
    Chance of rain: 5%
    Likely amount: < 1mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    5:10am EDT 5:39am EDT 7:53pm EDT 8:22pm EDT
    NOW
    18.9° Feels Like: 18.5°
    Relative Humidity: 80%
    Dew: 15.4°
    Wind: SE 11km/h
    Gust: 13km/h
    Rainfall since 9am: 0.0mm
    Pressure:  
  3. Today Weather

    Osterley
    Now
    20.0°c
    Feels Like:
    18.8°
    Wind:
    ENE 17km/h
    Gusts:
    19km/h
    Humidity:
    79%
    Hazy
     
    16°
    Min
    35°
    Max
    Today in Osterley
    Hot. Partly cloudy. Areas of smoke haze. Winds NE/SE 15 to 20 km/h tending NW/NE 15 to 25 km/h in the morning then tending NE/SE 20 to 30 km/h in the late afternoon. Overnight temperatures falling to between 14 and 17 with daytime temperatures reaching 30 to 38.
    Tomorrow
    Late shower
    17°
    Min
    41°
    Max
    Hot and mostly sunny. Areas of smoke haze. Slight chance of a shower in the afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Winds NW 20 to 30 km/h shifting S/SE during the afternoon and evening. Overnight temperatures falling to between 17 and 21 with daytime temperatures reaching 36 to 42.
  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Hot. Partly cloudy. Areas of smoke haze. Winds NE/SE 15 to 20 km/h tending NW/NE 15 to 25 km/h in the morning then tending NE/SE 20 to 30 km/h in the late afternoon. Overnight temperatures falling to between 14 and 17 with daytime temperatures reaching 30 to 38.

    Forecast for Osterley (32.7248°S, 151.7008°E, 22m AMSL)
      Mon Tue Wed Thu Fri Sat Sun
    Summary Hazy Late shower Hazy Possible thunderstorm Possible shower Mostly sunny Mostly sunny
    Minimum 16° 17° 17° 16° 16° 15° 13°
    Maximum 35° 41° 29° 31° 24° 26° 32°
    Chance of rain 5% 50% 20% 50% 50% 30% 50%
    Likely amount < 1mm 1-5mm < 1mm 1-5mm 1-5mm < 1mm < 1mm
    UV index Very High Very High Very High Very High - - -
    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 14
    (km/h)
    15
    (km/h)
    14
    (km/h)
    12
    (km/h)
    12
    (km/h)
    19
    (km/h)
    9
    (km/h)
    17
    (km/h)
    12
    (km/h)
    19
    (km/h)
    7
    (km/h)
    15
    (km/h)
    10
    (km/h)
    19
    (km/h)
    Wind direction ENE E NW NW SSW SSE SSW SE SSE SE SE ESE W SSE
    Relative humidity 60% 33% 47% 15% 72% 55% 70% 50% 70% 61% 65% 37% 43% 31%
    Dew point 16°C 17°C 17°C 10°C 16°C 19°C 16°C 20°C 15°C 16°C 13°C 11°C 10°C 13°C
  9. 28 Day Rainfall forecast

    Osterley Rain Forecast


    Osterley 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    9
    10
    LOW
    11
    LOW
    12
    MEDIUM
    13
    MEDIUM
    14
    MEDIUM
    15
    LOW
    16
    17
    18
    19
    MEDIUM
    20
    LOW
    21
    LOW
    22
    23
    LOW
    24
    LOW
    25
    MEDIUM
    26
    LOW
    27
    LOW
    28
    LOW
    29
    LOW
    30
    31
    Jan 1
    LOW
    2
    LOW
    3
    4
    5
    6
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Dec 8

    Issue Notes

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

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 16 December to 20 December, 28 December to 1 January, and 4 January to 8 January. Rain events originating in the tropics and moving south are possible about 13 December to 17 December, 17 December to 21 December, and 8 January to 12 January. Over Western Australia the strongest cold fronts should occur about 15 December to 19 December, and 4 January to 8 January.

    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

    Osterley Rain Forecast


    Osterley 12-month Rainfall Forecast
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    2019
    2020
    2
    2
    6
    6
    7
    6
    6
    4
    5
    6
    2
    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 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

    Osterley Rain Forecast


    Osterley 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    9
    10
    LOW
    11
    LOW
    12
    MEDIUM
    13
    MEDIUM
    14
    MEDIUM
    15
    LOW
    16
    17
    18
    19
    MEDIUM
    20
    LOW
    21
    LOW
    22
    23
    LOW
    24
    LOW
    25
    MEDIUM
    26
    LOW
    27
    LOW
    28
    LOW
    29
    LOW
    30
    31
    Jan 1
    LOW
    2
    LOW
    3
    4
    5
    6
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Dec 8

    Issue Notes

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

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 16 December to 20 December, 28 December to 1 January, and 4 January to 8 January. Rain events originating in the tropics and moving south are possible about 13 December to 17 December, 17 December to 21 December, and 8 January to 12 January. Over Western Australia the strongest cold fronts should occur about 15 December to 19 December, and 4 January to 8 January.

    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

    Osterley Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Wednesday
    Dec 04
    13.6 °C 34.0 °C
    -
    Thursday
    Dec 05
    13.9 °C 36.1 °C
    0.0 mm
    Friday
    Dec 06
    17.4 °C 36.5 °C
    0.0 mm
    Saturday
    Dec 07
    15.8 °C 31.6 °C
    0.0 mm
    Sunday
    Dec 08
    14.5 °C 30 °C
    0.0 mm
    Legend
  14. Almanac

    Almanac


    Osterley minimum temp history (32.7248°S, 151.7008°E, 22m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 36.5° 06/12/2019 Coldest this month 13.6° 04/12/2019
    Hottest on record 44.2 23/12/1990 Coldest on record 6.2 07/12/1967
    Hottest this year 43.5° 26/01/2019 Coldest this year -0.3° 14/08/2019
    Long term average 29.0° Long term average 16.2°
    Average this month 32.1° Average this month 15.9°
    Hottest December On Record Avg. max. temp. 33.5° 1990 Coldest December on record Avg. min. temp. 13.3° 1967
    Osterley rainfall history (32.7248°S, 151.7008°E, 22m AMSL)
    RAINFALL
    Wettest This Month 1.2mm 01/12/2019 Total This Month 1.2mm
    1.0 days
    Long Term Average 82.1mm 10.1 days Wettest December on record 222.8mm 1990
  15. Popup - Radar

    Weather Radar for NSW/ACT

  16. Year to Date

    Osterley Year To Date

    Average Rainfall To Dec 936.1mm 126.3 day(s)
    Total For 2019 578.6mm 99.0 day(s)
    Total To This Day 2018 831.0mm 111.0 day(s)
    Wettest Day 55.8mm Sep18
    Lowest Temperature -0.3°C Aug14
    Highest Temperature 43.5°C Jan26
  17. Popup - Monthly historical

  18. Climatology

    Osterley Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 29.8 28.9 27.1 24.3 20.8 17.8 17.3 19.3 22.4 25.1 26.8 29.0 24.0
    Mean Min (°C) 17.6 17.5 15.7 12.5 9.7 7.6 6.2 6.6 8.9 11.4 14.0 16.2 12.0
    Mean Rain (mm) 110.1 117.2 115.7 88.1 70.9 76.5 40.1 37.8 47.5 64.9 85.2 82.1 938.7
    Mean Rain Days 11.7 11.4 12.3 10.7 11.5 11.9 10.1 8.0 7.9 9.4 11.3 10.1 123.1