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Forecast

Derby (36.6495°S, 144.0172°E, 150m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Increasing sunshine 13°
    increasing sunshine
    Chance of rain: 5%
    Likely amount: < 1mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    6:28am EST 6:54am EST 5:56pm EST 6:23pm EST
    NOW
    4.5° Feels Like: 2.3°
    Relative Humidity: 92%
    Dew: 3.3°
    Wind: SSE 4km/h
    Gust: SSE 4km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1020.8hPa
  3. Today Weather

    Derby
    Now
    1.9°c
    Feels Like:
    -1.0°
    Wind:
    SW 6km/h
    Gusts:
    6km/h
    Humidity:
    98%
    Increasing sunshine
     
    Min
    13°
    Max
    Today in Derby
    A mostly sunny morning then a partly cloudy afternoon. Winds S/SW 15 to 20 km/h becoming light in the late afternoon. Daytime maximum temperatures around 13.
    Tomorrow
    Frost then sunny
    Min
    14°
    Max
    Partly cloudy. Areas of frost and the chance of fog in the morning. Light winds. Overnight temperatures falling to around 1 with daytime temperatures reaching around 15.
  4. Radar

  5. Popup Radar

  6. Warnings

    There are no current warnings for Derby

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: A mostly sunny morning then a partly cloudy afternoon. Winds S/SW 15 to 20 km/h becoming light in the late afternoon. Daytime maximum temperatures around 13.

    Forecast for Derby (36.6495°S, 144.0172°E, 150m AMSL)
      Sun Mon Tue Wed Thu Fri Sat
    Summary Increasing sunshine Frost then sunny Mostly sunny Possible shower Frost then sunny Frost then sunny Frost then sunny
    Minimum
    Maximum 13° 14° 15° 13° 12° 15° 16°
    Chance of rain 5% 10% 10% 80% 20% 5% 80%
    Likely amount < 1mm < 1mm < 1mm 1-5mm < 1mm < 1mm 1-5mm
    UV index Moderate Moderate Moderate Moderate Moderate - -
    Frost risk Moderate High Moderate Slight High High High
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 10
    (km/h)
    16
    (km/h)
    8
    (km/h)
    12
    (km/h)
    4
    (km/h)
    12
    (km/h)
    12
    (km/h)
    20
    (km/h)
    18
    (km/h)
    22
    (km/h)
    11
    (km/h)
    12
    (km/h)
    7
    (km/h)
    15
    (km/h)
    Wind direction SW WSW SW WSW SW W WNW W SSW S SSE E NE N
    Relative humidity 78% 53% 80% 51% 81% 53% 87% 76% 75% 56% 74% 51% 77% 54%
    Dew point 3°C 3°C 4°C 4°C 6°C 5°C 7°C 8°C 3°C 3°C 3°C 5°C 5°C 7°C
  9. 28 Day Rainfall forecast

    Derby Rain Forecast


    Derby 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    25
    26
    27
    28
    MEDIUM
    29
    30
    31
    MEDIUM
    Sep 1
    HIGH
    2
    LOW
    3
    HIGH
    4
    LOW
    5
    LOW
    6
    MEDIUM
    7
    LOW
    8
    LOW
    9
    LOW
    10
    LOW
    11
    HIGH
    12
    MEDIUM
    13
    LOW
    14
    15
    LOW
    16
    MEDIUM
    17
    LOW
    18
    19
    LOW
    20
    21
    MEDIUM
    22
    HIGH
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug24

    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, the Indian Ocean, Western Australia, the south Pacific, and South America.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 30 August to 3 September, 8 September to 12 September, and 25 September to 29 September. Rain events originating in the tropics and moving south are possible about 22 August to 26 August. Over Western Australia the strongest cold fronts should occur about 30 August to 3 September, 4 September to 8 September, and 9 September to 13 September.

  10. 12 Month Rainfall Forecast

    Derby Rain Forecast


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

    Derby Rain Forecast


    Derby 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    25
    26
    27
    28
    MEDIUM
    29
    30
    31
    MEDIUM
    Sep 1
    HIGH
    2
    LOW
    3
    HIGH
    4
    LOW
    5
    LOW
    6
    MEDIUM
    7
    LOW
    8
    LOW
    9
    LOW
    10
    LOW
    11
    HIGH
    12
    MEDIUM
    13
    LOW
    14
    15
    LOW
    16
    MEDIUM
    17
    LOW
    18
    19
    LOW
    20
    21
    MEDIUM
    22
    HIGH
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug24

    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, the Indian Ocean, Western Australia, the south Pacific, and South America.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 30 August to 3 September, 8 September to 12 September, and 25 September to 29 September. Rain events originating in the tropics and moving south are possible about 22 August to 26 August. Over Western Australia the strongest cold fronts should occur about 30 August to 3 September, 4 September to 8 September, and 9 September to 13 September.

  12. Popup - Daily historical

  13. Past 5 Days

    Derby Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Tuesday
    Aug 20
    1.5 °C 14.2 °C
    0.4 mm
    Wednesday
    Aug 21
    6.3 °C 15.8 °C
    0.2 mm
    Thursday
    Aug 22
    9.4 °C 13.6 °C
    3.0 mm
    Friday
    Aug 23
    -1.9 °C 13.5 °C
    0.0 mm
    Saturday
    Aug 24
    -1.0 °C 19 °C
    0.2 mm
    Legend
  14. Almanac

    Almanac


    Derby minimum temp history (36.6495°S, 144.0172°E, 150m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 16.5° 15/08/2019 Coldest this month -1.9° 23/08/2019
    Hottest on record 24.2 27/08/2007 Coldest on record -5.0 24/08/2002
    Hottest this year 45.9° 25/01/2019 Coldest this year -1.9° 23/08/2019
    Long term average 14.2° Long term average 2.8°
    Average this month 13.0° Average this month 2.9°
    Hottest August On Record Avg. max. temp. 15.8° 2006 Coldest August on record Avg. min. temp. 0.1° 1994
    Derby rainfall history (36.6495°S, 144.0172°E, 150m AMSL)
    RAINFALL
    Wettest This Month 7.4mm 08/08/2019 Total This Month 33.4mm
    12.0 days
    Long Term Average 51.3mm 15.3 days Wettest August on record 139.0mm 2006
  15. Popup - Radar

  16. Year to Date

    Derby Year To Date

    Average Rainfall To Aug 336.2mm 85.5 day(s)
    Total For 2019 234.0mm 90.0 day(s)
    Total To This Day 2018 218.0mm 73.0 day(s)
    Wettest Day 20.0mm Jun30
    Lowest Temperature -1.9°C Aug23
    Highest Temperature 45.9°C Jan25
  17. Popup - Monthly historical

  18. Climatology

    Derby Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 29.9 29.6 26.1 21.3 16.7 13.3 12.5 14.2 17.0 20.8 24.6 27.4 21.2
    Mean Min (°C) 14.2 14.4 11.8 8.0 5.3 3.6 2.7 2.8 4.5 6.6 9.7 11.9 8.0
    Mean Rain (mm) 34.8 32.6 30.2 33.1 46.0 52.8 55.4 51.3 54.1 41.3 45.8 39.7 515.5
    Mean Rain Days 5.9 5.1 5.4 7.1 12.4 16.2 18.1 15.3 12.5 9.2 8.0 6.9 115.3