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Forecast

Roseworthy (34.5331°S, 138.7471°E, 111m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Showers
    Chance of rain: 80%
    Likely amount: 1-5mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    6:37am CST 7:03am CST 5:39pm CST 6:05pm CST
    NOW
    8.3° Feels Like: 4.4°
    Relative Humidity: 83%
    Dew: 5.6°
    Wind: SE 15km/h
    Gust: 22km/h
    Rainfall since 9am: 0.4mm
    Pressure: 1013.5hPa
  3. Today Weather

    Roseworthy
    Now
    9.0°c
    Feels Like:
    5.7°
    Wind:
    S 11km/h
    Gusts:
    17km/h
    Humidity:
    75%
    Showers
     
    Min
    Max
    Today in Roseworthy
    Very cold and cloudy. Very high chance of showers, becoming less likely late this afternoon and evening. The slight chance of snow over higher ground. Winds S/SE 20 to 30 km/h turning SW 15 to 20 km/h in the late evening. Daytime maximum temperatures between 5 and 10.
    Tomorrow
    Possible shower
    Min
    13°
    Max
    Cloudy. High chance of showers. The slight chance of snow over higher ground in the morning. Winds W/SW 15 to 20 km/h becoming light in the morning. Overnight temperatures falling to around 1 with daytime temperatures reaching between 9 and 13.
  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Very cold and cloudy. Very high chance of showers, becoming less likely late this afternoon and evening. The slight chance of snow over higher ground. Winds S/SE 20 to 30 km/h turning SW 15 to 20 km/h in the late evening. Daytime maximum temperatures between 5 and 10.

    Forecast for Roseworthy (34.5331°S, 138.7471°E, 111m AMSL)
      Fri Sat Sun Mon Tue Wed Thu
    Summary Showers Possible shower Mostly sunny Frost then sunny Showers Showers Showers
    Minimum
    Maximum 13° 15° 18° 15° 16° 15°
    Chance of rain 80% 80% 10% 40% 70% 80% 70%
    Likely amount 1-5mm 1-5mm < 1mm < 1mm 1-5mm 1-5mm 1-5mm
    UV index Moderate Low Moderate Moderate Moderate - -
    Frost risk Moderate High High High Nil Nil Nil
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 19
    (km/h)
    20
    (km/h)
    11
    (km/h)
    14
    (km/h)
    9
    (km/h)
    15
    (km/h)
    15
    (km/h)
    22
    (km/h)
    24
    (km/h)
    23
    (km/h)
    27
    (km/h)
    29
    (km/h)
    22
    (km/h)
    22
    (km/h)
    Wind direction SSE S SW S SE SSW ENE NE NE NNE NNW NW NNW WNW
    Relative humidity 95% 83% 100% 85% 98% 71% 97% 60% 85% 80% 97% 71% 97% 67%
    Dew point 7°C 5°C 8°C 10°C 7°C 10°C 9°C 10°C 8°C 12°C 10°C 11°C 10°C 9°C
  9. 28 Day Rainfall forecast

    Roseworthy Rain Forecast


    Roseworthy 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    7
    HIGH
    8
    HIGH
    9
    LOW
    10
    LOW
    11
    HIGH
    12
    MEDIUM
    13
    LOW
    14
    LOW
    15
    16
    LOW
    17
    LOW
    18
    HIGH
    19
    20
    MEDIUM
    21
    22
    23
    24
    25
    26
    MEDIUM
    27
    28
    LOW
    29
    30
    LOW
    31
    LOW
    Sep 1
    2
    3
    4
    LOW
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug 6

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are seven main troughs. Currently the most significant troughs are near the longitudes of South Africa, the southwest Indian Ocean, the Indian Ocean, New Zealand, 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 19 August to 23 August, 24 August to 28 August, and 29 August to 2 September. Rain events originating in the tropics and moving south are possible about 12 August to 16 August, 19 August to 23 August, and 25 August to 29 August. Over Western Australia the strongest cold fronts should occur about 11 August to 15 August, 16 August to 20 August, and 23 August to 27 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

    Roseworthy Rain Forecast


    Roseworthy 12-month Rainfall Forecast
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    2020
    2021
    5
    6
    7
    6
    8
    8
    7
    7
    5
    3
    7
    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 5

    ENSO status: La Nina Watch IOD status: Neutral SAM status: Positive Sea surface temperatures (SSTs) across the equatorial central Pacific show a slight decrease in the intensity of cooling compared to June, with the Nino3.4 index registering a value of 0.0 in July. The Southern Oscillation Index (SOI) recorded a value of 4.2 in the same month, a swing into positive values compared to June. The current outlook suggests that cooler than average SSTs will continue across the equatorial pacific through the end of winter and potentially reach 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, with four of these indicating La Nina by Spring. The current International Research Institute for Climate and Society (IRI) outlook suggests a 54:41 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. Two of the six international models indicate a negative IOD becoming established during the Austral spring, with the remaining four indicating a neutral phase. Of the four neutral models, including the BOM, three are trending slightly negative within the neutral zone by early spring, with only the Canadian model trending positive. In terms of precipitation over Australia, the current short-term outlook favours above average rainfall across most of Australia over the next fortnight, with the exception of western TAS, far southern VIC, and northern QLD and the NT. These expected wetter than average conditions will likely be due to the passage of moisture troughs inland and fronts, in part driven by the positive SAM. Models are then indicating a continued trend to above average rainfall for inland SA, all but the far north of the NT, western, central and southern QLD, northern and western NSW and parts of southern WA. Parts of WA’s Pilbara and Kimberley however are showing signs of below average rainfall into early spring.

  11. Long range rainfall forecast

    Roseworthy Rain Forecast


    Roseworthy 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    7
    HIGH
    8
    HIGH
    9
    LOW
    10
    LOW
    11
    HIGH
    12
    MEDIUM
    13
    LOW
    14
    LOW
    15
    16
    LOW
    17
    LOW
    18
    HIGH
    19
    20
    MEDIUM
    21
    22
    23
    24
    25
    26
    MEDIUM
    27
    28
    LOW
    29
    30
    LOW
    31
    LOW
    Sep 1
    2
    3
    4
    LOW
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug 6

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are seven main troughs. Currently the most significant troughs are near the longitudes of South Africa, the southwest Indian Ocean, the Indian Ocean, New Zealand, 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 19 August to 23 August, 24 August to 28 August, and 29 August to 2 September. Rain events originating in the tropics and moving south are possible about 12 August to 16 August, 19 August to 23 August, and 25 August to 29 August. Over Western Australia the strongest cold fronts should occur about 11 August to 15 August, 16 August to 20 August, and 23 August to 27 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

    Roseworthy Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Monday
    Aug 03
    1.4 °C 17.2 °C
    0.0 mm
    Tuesday
    Aug 04
    -1.9 °C 13.9 °C
    0.0 mm
    Wednesday
    Aug 05
    -3.6 °C 14.0 °C
    0.0 mm
    Thursday
    Aug 06
    -1.1 °C 13.2 °C
    0.0 mm
    Friday
    Aug 07
    5.5 °C 8.3 °C
    0.4 mm
    Legend
  14. Almanac

    Almanac


    Roseworthy minimum temp history (34.5331°S, 138.7471°E, 111m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 21.4° 01/08/2020 Coldest this month -3.6° 05/08/2020
    Hottest on record 30.2 30/08/2007 Coldest on record -3.2 25/08/2002
    Hottest this year 45.3° 30/01/2020 Coldest this year -3.6° 05/08/2020
    Long term average 16.5° Long term average 5.2°
    Average this month 16.8° Average this month 0.4°
    Hottest August On Record Avg. max. temp. 18.8° 2006 Coldest August on record Avg. min. temp. 2.5° 2014
    Roseworthy rainfall history (34.5331°S, 138.7471°E, 111m AMSL)
    RAINFALL
    Wettest This Month 0.0mm 01/08/2020 Total This Month 0.0mm
    0.0 days
    Long Term Average 47.0mm 14.6 days Wettest August on record 73.4mm 2008
    Driest on record 9.4mm 2006
  15. Popup - Radar

    Weather Radar for SA

  16. Year to Date

    Roseworthy Year To Date

    Average Rainfall To Aug 277.0mm 73.4 day(s)
    Total For 2020 170.2mm 64.0 day(s)
    Total To This Day 2019 110.6mm 58.0 day(s)
    Wettest Day 21.4mm Apr26
    Lowest Temperature -3.6°C Aug 5
    Highest Temperature 45.3°C Jan30
  17. Popup - Monthly historical

  18. Climatology

    Climate History

    Roseworthy Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 31.8 31.2 28.2 24.0 19.9 16.1 15.3 16.5 19.8 23.6 27.6 29.5 23.6
    Mean Min (°C) 14.9 14.8 12.9 10.4 8.7 6.6 5.8 5.2 6.5 7.7 10.6 12.6 9.7
    Mean Rain (mm) 18.7 21.4 19.9 32.8 41.4 50.2 45.6 47.0 49.0 33.3 26.1 26.5 408.9
    Mean Rain Days 3.7 3.1 4.6 8.5 10.1 13.5 15.3 14.6 12.7 8.5 6.6 5.9 99.4