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Forecast

Dee Why Beach (33.7541°S, 151.2958°E, 1m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Possible thunderstorm 22° 40°
    possible thunderstorm
    Chance of rain: 30%
    Likely amount: 1-5mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    5:40am EDT 6:07am EDT 8:06pm EDT 8:33pm EDT
    NOW
    27.7° Feels Like: 24.3°
    Relative Humidity: 43%
    Dew: 14.0°
    Wind: NNW 24km/h
    Gust: 37km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1003.4hPa
  3. Today Weather

    Dee Why Beach
    Now
    26.8°c
    Feels Like:
    25.8°
    Wind:
    NNW 13km/h
    Gusts:
    26km/h
    Humidity:
    48%
    Possible thunderstorm
     
    22°
    Min
    40°
    Max
    Today in Dee Why Beach
    Hot. Mostly sunny morning. Areas of dust haze possible this afternoon and evening. Slight chance of a shower, most likely this evening. The chance of a thunderstorm late this afternoon and evening with gusty winds. Winds N 20 to 30 km/h tending NW 30 to 45 km/h in the morning.
    Tomorrow
    Possible shower
    24°
    Min
    28°
    Max
    Partly cloudy. Medium chance of showers, most likely in the morning and early afternoon. The chance of a thunderstorm. Winds N 15 to 20 km/h shifting S/SE before dawn then becoming light early in the morning.
  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Hot. Mostly sunny morning. Areas of dust haze possible this afternoon and evening. Slight chance of a shower, most likely this evening. The chance of a thunderstorm late this afternoon and evening with gusty winds. Winds N 20 to 30 km/h tending NW 30 to 45 km/h in the morning.

    Forecast for Dee Why Beach (33.7541°S, 151.2958°E, 1m AMSL)
      Thu Fri Sat Sun Mon Tue Wed
    Summary Possible thunderstorm Possible shower Clearing shower Mostly sunny Mostly sunny Possible shower Possible shower
    Minimum 22° 24° 22° 22° 23° 23° 21°
    Maximum 40° 28° 26° 29° 29° 32° 24°
    Chance of rain 30% 60% 40% 30% 30% 40% 50%
    Likely amount 1-5mm 2-6mm 0-2mm 0-0.4mm 0-0.4mm 0-2mm 0-2mm
    UV index - - - - - - -
    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 23
    (km/h)
    21
    (km/h)
    15
    (km/h)
    12
    (km/h)
    13
    (km/h)
    14
    (km/h)
    4
    (km/h)
    13
    (km/h)
    9
    (km/h)
    15
    (km/h)
    10
    (km/h)
    11
    (km/h)
    14
    (km/h)
    16
    (km/h)
    Wind direction N N SSW SE ESE ESE SSW E SSE E NNW NNE S ESE
    Relative humidity 60% 36% 80% 73% 83% 75% 85% 76% 84% 74% 75% 61% 77% 71%
    Dew point 23°C 22°C 21°C 22°C 21°C 21°C 22°C 24°C 23°C 24°C 22°C 23°C 19°C 19°C
  9. 28 Day Rainfall forecast

    Dee Why Beach Rain Forecast


    Dee Why Beach 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    23
    MEDIUM
    24
    MEDIUM
    25
    MEDIUM
    26
    MEDIUM
    27
    MEDIUM
    28
    HIGH
    29
    30
    31
    Feb 1
    LOW
    2
    LOW
    3
    LOW
    4
    LOW
    5
    LOW
    6
    LOW
    7
    LOW
    8
    LOW
    9
    10
    11
    LOW
    12
    MEDIUM
    13
    LOW
    14
    LOW
    15
    16
    17
    18
    LOW
    19
    20
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Jan22

    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 Indian Ocean, eastern Australia, the south 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 30 January to 3 February, 13 February to 17 February, and 21 February to 25 February. Rain events originating in the tropics and moving south are possible about 30 January to 3 February. Over Western Australia the strongest cold fronts should occur about 29 January to 2 February, 13 February to 17 February, and 21 February to 25 February.

    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

    Dee Why Beach Rain Forecast


    Dee Why Beach 12-month Rainfall Forecast
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec
    2020
    4
    6
    4
    8
    6
    7
    8
    5
    6
    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 Jan 14

    ENSO status: Neutral IOD status: Neutral SAM status: Trending neutral Sea surface temperatures (SSTs) across the equatorial central Pacific remained stable throughout December with the Nino3.4 index registering a value of 0.4 throughout the month. On the other hand, the Southern Oscillation Index (SOI) recorded a value of -5.5 in December. The current outlook suggests warmer than average SSTs will persist across the equatorial Pacific Ocean through the coming months, but remaining within neutral values. Six out of eight international models maintain a warmer than average equatorial Pacific Ocean through the first two quarters of 2020, none of these reaching El Nino thresholds. To the west of Australia, the Indian Ocean Dipole (IOD) has now returned to neutral, as waters off Western Australia have warmed up considerably. All six international models maintain neutral values until the austral winter with indications we could see another positive event later this year. In terms of rainfall across Australia, the current outlook favours a clearer below average rainfall signal for Western Australia and the Northern Territory through the remainder of January. This however, excludes any extreme weather events such as tropical cyclones. For the eastern states, there is a wetter than average signal for the coming weeks. Looking further ahead, with no significant signature from ENSO, there are no significant climate drivers tilting the balance towards a drier or wetter February. The current outlook suggests average-to-below average odds for February and March across the eastern states. The northern and western half of the country, however, could see a wet end to summer/start to autumn.

  11. Long range rainfall forecast

    Dee Why Beach Rain Forecast


    Dee Why Beach 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    23
    MEDIUM
    24
    MEDIUM
    25
    MEDIUM
    26
    MEDIUM
    27
    MEDIUM
    28
    HIGH
    29
    30
    31
    Feb 1
    LOW
    2
    LOW
    3
    LOW
    4
    LOW
    5
    LOW
    6
    LOW
    7
    LOW
    8
    LOW
    9
    10
    11
    LOW
    12
    MEDIUM
    13
    LOW
    14
    LOW
    15
    16
    17
    18
    LOW
    19
    20
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Jan22

    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 Indian Ocean, eastern Australia, the south 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 30 January to 3 February, 13 February to 17 February, and 21 February to 25 February. Rain events originating in the tropics and moving south are possible about 30 January to 3 February. Over Western Australia the strongest cold fronts should occur about 29 January to 2 February, 13 February to 17 February, and 21 February to 25 February.

    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

    Dee Why Beach Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Saturday
    Jan 18
    18.6 °C 23.0 °C
    30.6 mm
    Sunday
    Jan 19
    19.0 °C 26.5 °C
    4.4 mm
    Monday
    Jan 20
    20.4 °C 27.7 °C
    0.0 mm
    Tuesday
    Jan 21
    19.8 °C 32.0 °C
    2.6 mm
    Wednesday
    Jan 22
    20.4 °C 29 °C
    0.2 mm
    Legend
  14. Almanac

    Almanac


    Dee Why Beach minimum temp history (33.7541°S, 151.2958°E, 1m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 35.9° 04/01/2020 Coldest this month 17.4° 13/01/2020
    Hottest on record 45.8 18/01/2013 Coldest on record 10.6 18/01/1949
    Hottest this year 35.9° 04/01/2020 Coldest this year 17.4° 13/01/2020
    Long term average 26.0° Long term average 18.7°
    Average this month 26.7° Average this month 20.0°
    Hottest January On Record Avg. max. temp. 29.6° 2017 Coldest January on record Avg. min. temp. 16.5° 1948
    Dee Why Beach rainfall history (33.7541°S, 151.2958°E, 1m AMSL)
    RAINFALL
    Wettest This Month 30.6mm 18/01/2020 Total This Month 69.6mm
    13.0 days
    Long Term Average 102.2mm 12.2 days Wettest January on record 387.1mm 2017
  15. Popup - Radar

    Weather Radar for NSW/ACT

  16. Year to Date

    Dee Why Beach Year To Date

    Average Rainfall To Jan 102.2mm 12.2 day(s)
    Total For 2020 69.6mm 13.0 day(s)
    Total To This Day 2019 45.6mm 8.0 day(s)
    Wettest Day 30.6mm Jan18
    Lowest Temperature 17.4°C Jan13
    Highest Temperature 35.9°C Jan 4
  17. Popup - Monthly historical

  18. Climatology

    Climate History

    Dee Why Beach Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 26.0 25.8 24.8 22.5 19.5 17.0 16.4 17.9 20.1 22.2 23.7 25.2 21.7
    Mean Min (°C) 18.7 18.8 17.6 14.7 11.6 9.3 8.1 9.0 11.1 13.6 15.7 17.5 13.8
    Mean Rain (mm) 102.2 117.6 130.9 128.5 118.6 133.0 97.1 81.1 68.4 76.4 83.8 77.6 1215.0
    Mean Rain Days 12.2 12.5 13.7 12.9 13.1 12.7 11.3 10.4 10.6 11.6 11.7 11.5 143.1