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Forecast

Williamtown (32.8068°S, 151.8442°E, 18m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Hazy 18° 33°
    Chance of rain: 10%
    Likely amount: < 1mm
    First
    light     		Sunrise Sunset Last light
    Sunrise Sunset
    5:09am EDT 5:37am EDT 7:50pm EDT 8:18pm EDT
    NOW
    32.4° Feels Like: 28.4°
    Relative Humidity: 16%
    Dew: 3.4°
    Wind: NNW 13km/h
    Gust: 20km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1005.1hPa

  3. Today Weather

    Williamtown
    Now
    23.0°c
    Feels Like:
    24.8°
    Wind:
    SE 7km/h
    Gusts:
    9km/h
    Humidity:
    78%
    Hazy
     
    18°
    Min
    33°
    Max
    Today in Williamtown
    Mostly sunny. Areas of smoke haze, thick at times. Winds W 20 to 30 km/h becoming light in the evening. Daytime maximum temperatures 32 to 37.
    Tomorrow
    Mostly sunny
    18°
    Min
    28°
    Max
    Mostly sunny. Areas of smoke haze. Light winds becoming W/SW 15 to 25 km/h in the early afternoon then shifting E/SE in the afternoon. Overnight temperatures falling to between 14 and 17 with daytime temperatures reaching 28 to 35.

  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours

  8. 7 day forecast

    Today: Mostly sunny. Areas of smoke haze, thick at times. Winds W 20 to 30 km/h becoming light in the evening. Daytime maximum temperatures 32 to 37.

    Forecast for Williamtown (32.8068°S, 151.8442°E, 18m AMSL)
      Fri Sat Sun Mon Tue Wed Thu
    Summary Hazy Mostly sunny Mostly sunny Mostly sunny Mostly sunny Possible shower Possible shower
    Minimum 18° 18° 18° 17° 18° 19° 17°
    Maximum 33° 28° 26° 29° 37° 24° 22°
    Chance of rain 10% 10% 10% 5% 60% 50% 70%
    Likely amount < 1mm < 1mm < 1mm < 1mm 1-5mm 1-5mm 1-5mm
    UV index High Very High Very High High 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 11
    (km/h)     		22
    (km/h)     		14
    (km/h)     		29
    (km/h)     		18
    (km/h)     		32
    (km/h)     		20
    (km/h)     		36
    (km/h)     		12
    (km/h)     		25
    (km/h)     		22
    (km/h)     		30
    (km/h)     		15
    (km/h)     		28
    (km/h)
    Wind direction NW WSW SSW SE ENE E ENE E N E SW S S SE
    Relative humidity 44% 20% 64% 46% 63% 54% 58% 48% 56% 30% 69% 62% 69% 57%
    Dew point 12°C 7°C 17°C 15°C 16°C 16°C 16°C 17°C 18°C 17°C 17°C 16°C 15°C 13°C

  9. 28 Day Rainfall forecast

    Williamtown Rain Forecast

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

    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, 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 14 December to 18 December, 26 December to 30 December, and 4 January to 8 January. Rain events originating in the tropics and moving south are possible about 11 December to 15 December, 29 December to 2 January, and 5 January to 9 January. Over Western Australia the strongest cold fronts should occur about 13 December to 17 December, 27 December to 31 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

    Williamtown Rain Forecast

    Williamtown 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

    Williamtown Rain Forecast

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

    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, 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 14 December to 18 December, 26 December to 30 December, and 4 January to 8 January. Rain events originating in the tropics and moving south are possible about 11 December to 15 December, 29 December to 2 January, and 5 January to 9 January. Over Western Australia the strongest cold fronts should occur about 13 December to 17 December, 27 December to 31 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

    Williamtown Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Monday
    Dec 02     		15.1 °C 24.6 °C
    0.0 mm
    Tuesday
    Dec 03     		11.3 °C 30.3 °C
    0.0 mm
    Wednesday
    Dec 04     		11.5 °C 33.4 °C
    0.0 mm
    Thursday
    Dec 05     		12.2 °C 35.3 °C
    0.0 mm
    Friday
    Dec 06     		17.6 °C -
    0.0 mm
    Legend

  14. Almanac

    Almanac

    Williamtown minimum temp history (32.8068°S, 151.8442°E, 18m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 35.0° 05/12/2019 Coldest this month 11.3° 03/12/2019
    Hottest on record 42.8 29/12/1957 Coldest on record 7.9 02/12/1991
    Hottest this year 41.8° 26/01/2019 Coldest this year 0.7° 16/08/2019
    Long term average 27.3° Long term average 16.6°
    Average this month 29.8° Average this month 14.5°
    Hottest December On Record Avg. max. temp. 30.8° 1979 Coldest December on record Avg. min. temp. 14.8° 1986
    Williamtown rainfall history (32.8068°S, 151.8442°E, 18m AMSL)
    RAINFALL
    Wettest This Month 0.0mm 01/12/2019 Total This Month 0.0mm
    0.0 days
    Long Term Average 82.2mm 11.1 days Wettest December on record 238.0mm 1979

  15. Popup - Radar

    Weather Radar for NSW/ACT

  16. Year to Date

    Williamtown Year To Date

    Average Rainfall To Dec 1149.8mm 141.3 day(s)
    Total For 2019 728.6mm 92.0 day(s)
    Total To This Day 2018 994.6mm 111.0 day(s)
    Wettest Day 67.4mm Aug31
    Lowest Temperature 0.7°C Aug16
    Highest Temperature 41.8°C Jan26

  17. Popup - Monthly historical

  18. Climatology

    Williamtown Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 28.1 27.6 26.3 23.7 20.4 17.7 17.1 18.7 21.4 23.7 25.6 27.3 23.1
    Mean Min (°C) 18.1 18.1 16.4 13.2 10.1 7.9 6.4 6.9 9.1 11.9 14.4 16.6 12.4
    Mean Rain (mm) 103.1 114.6 123.0 117.8 113.2 129.6 71.1 69.6 64.5 75.0 86.1 82.2 1150.9
    Mean Rain Days 11.7 11.8 13.0 12.3 13.5 13.8 10.8 10.5 9.8 11.5 11.5 11.1 128.7

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