You do not have a default location set
To set your location please use the search box to find your location and then click "set as my default location" on the local weather page.

Forecast

Portsea (38.3274°S, 144.7103°E, 15m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Showers increasing 17°
    showers increasing
    Chance of rain: 80%
    Likely amount: 1-5mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    6:27am EST 6:54am EST 5:51pm EST 6:18pm EST
    NOW
    8.3° Feels Like: 4.7°
    Relative Humidity: 81%
    Dew: 5.2°
    Wind: NNE 13km/h
    Gust: NNE 13km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1015.2hPa
  3. Today Weather

    Portsea
    Now
    6.7°c
    Feels Like:
    1.2°
    Wind:
    NNE 20km/h
    Gusts:
    28km/h
    Humidity:
    76%
    Showers increasing
     
    Min
    17°
    Max
    Today in Portsea
    Becoming cloudy. High chance of showers, most likely in the late afternoon and evening. Snow falling above 1200 metres. Possible hail near the Otways at night. Winds N 25 to 40 km/h shifting W/SW 15 to 25 km/h in the late afternoon. Overnight temperatures falling to between 3 and 8 with daytime temperatures reaching between 13 and 18.
    Tomorrow
    Possible shower
    Min
    13°
    Max
    Partly cloudy. High chance of showers in the east, medium chance elsewhere. Snow falling above 900 metres. Possible hail in the southeast in the early morning. Winds SW 15 to 25 km/h becoming light in the evening. Overnight temperatures falling to between 1 and 6 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: Becoming cloudy. High chance of showers, most likely in the late afternoon and evening. Snow falling above 1200 metres. Possible hail near the Otways at night. Winds N 25 to 40 km/h shifting W/SW 15 to 25 km/h in the late afternoon. Overnight temperatures falling to between 3 and 8 with daytime temperatures reaching between 13 and 18.

    Forecast for Portsea (38.3274°S, 144.7103°E, 15m AMSL)
      Sat Sun Mon Tue Wed Thu Fri
    Summary Showers increasing Possible shower Possible shower Mostly sunny Possible shower Possible shower Mostly sunny
    Minimum
    Maximum 17° 13° 13° 15° 14° 12° 15°
    Chance of rain 80% 40% 30% 10% 70% 70% 5%
    Likely amount 1-5mm < 1mm < 1mm < 1mm 5-10mm < 1mm < 1mm
    UV index Moderate Moderate Moderate Moderate - - -
    Frost risk Nil Nil Nil Nil Nil Nil Slight
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 36
    (km/h)
    30
    (km/h)
    16
    (km/h)
    17
    (km/h)
    14
    (km/h)
    10
    (km/h)
    14
    (km/h)
    10
    (km/h)
    24
    (km/h)
    24
    (km/h)
    16
    (km/h)
    15
    (km/h)
    8
    (km/h)
    12
    (km/h)
    Wind direction N NNW WSW WSW WNW W NW NW NW W SSW SSW ENE SE
    Relative humidity 64% 58% 71% 62% 84% 68% 85% 66% 76% 72% 68% 66% 75% 62%
    Dew point 4°C 9°C 4°C 6°C 6°C 7°C 7°C 8°C 7°C 9°C 5°C 6°C 5°C 8°C
  9. 28 Day Rainfall forecast

    Portsea Rain Forecast


    Portsea 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    24
    MEDIUM
    25
    MEDIUM
    26
    LOW
    27
    28
    HIGH
    29
    MEDIUM
    30
    31
    MEDIUM
    Sep 1
    MEDIUM
    2
    LOW
    3
    HIGH
    4
    5
    LOW
    6
    LOW
    7
    MEDIUM
    8
    LOW
    9
    LOW
    10
    11
    MEDIUM
    12
    MEDIUM
    13
    LOW
    14
    LOW
    15
    LOW
    16
    HIGH
    17
    HIGH
    18
    HIGH
    19
    HIGH
    20
    LOW
    21
    LOW
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug23

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are four main troughs. Currently the most significant troughs are near the longitudes of South Africa, the southwest Indian Ocean, the Indian Ocean, Western Australia, and New Zealand.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 29 August to 2 September, 4 September to 8 September, and 15 September to 19 September. Rain events originating in the tropics and moving south are possible about 7 September to 11 September, and 21 September to 25 September. Over Western Australia the strongest cold fronts should occur about 30 August to 3 September, 4 September to 8 September, and 14 September to 18 September.

  10. 12 Month Rainfall Forecast

    Portsea Rain Forecast


    Portsea 12-month Rainfall Forecast
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    2019
    2020
    5
    6
    5
    5
    6
    6
    6
    5
    5
    3
    9
    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 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

    Portsea Rain Forecast


    Portsea 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    24
    MEDIUM
    25
    MEDIUM
    26
    LOW
    27
    28
    HIGH
    29
    MEDIUM
    30
    31
    MEDIUM
    Sep 1
    MEDIUM
    2
    LOW
    3
    HIGH
    4
    5
    LOW
    6
    LOW
    7
    MEDIUM
    8
    LOW
    9
    LOW
    10
    11
    MEDIUM
    12
    MEDIUM
    13
    LOW
    14
    LOW
    15
    LOW
    16
    HIGH
    17
    HIGH
    18
    HIGH
    19
    HIGH
    20
    LOW
    21
    LOW
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug23

    Issue Notes

    The hemispheric long wave pattern has remained stable in recent weeks. There are four main troughs. Currently the most significant troughs are near the longitudes of South Africa, the southwest Indian Ocean, the Indian Ocean, Western Australia, and New Zealand.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 29 August to 2 September, 4 September to 8 September, and 15 September to 19 September. Rain events originating in the tropics and moving south are possible about 7 September to 11 September, and 21 September to 25 September. Over Western Australia the strongest cold fronts should occur about 30 August to 3 September, 4 September to 8 September, and 14 September to 18 September.

  12. Popup - Daily historical

  13. Past 5 Days

    Portsea Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Monday
    Aug 19
    4.5 °C 12.7 °C
    1.6 mm
    Tuesday
    Aug 20
    6.2 °C 14.3 °C
    0.0 mm
    Wednesday
    Aug 21
    10.9 °C 15.7 °C
    2.4 mm
    Thursday
    Aug 22
    8.9 °C 13.4 °C
    1.0 mm
    Friday
    Aug 23
    2.6 °C 15 °C
    0.0 mm
    Legend
  14. Almanac

    Almanac


    Portsea minimum temp history (38.3274°S, 144.7103°E, 15m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 17.7° 18/08/2019 Coldest this month 1.0° 23/08/2019
    Hottest on record 25.9 27/08/2007 Coldest on record -4.4 05/08/1997
    Hottest this year 45.8° 04/01/2019 Coldest this year -0.5° 24/06/2019
    Long term average 15.5° Long term average 5.5°
    Average this month 14.0° Average this month 6.3°
    Hottest August On Record Avg. max. temp. 17.1° 2009 Coldest August on record Avg. min. temp. 4.2° 1995
    Portsea rainfall history (38.3274°S, 144.7103°E, 15m AMSL)
    RAINFALL
    Wettest This Month 10.8mm 08/08/2019 Total This Month 43.6mm
    13.0 days
    Long Term Average 41.8mm 11.9 days Wettest August on record 69.0mm 2009
  15. Popup - Radar

  16. Year to Date

    Portsea Year To Date

    Average Rainfall To Aug 277.5mm 66.3 day(s)
    Total For 2019 276.0mm 82.0 day(s)
    Total To This Day 2018 218.2mm 75.0 day(s)
    Wettest Day 36.6mm Jun 3
    Lowest Temperature -0.5°C Jun24
    Highest Temperature 45.8°C Jan 4
  17. Popup - Monthly historical

  18. Climatology

    Portsea Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 26.4 26.3 24.3 20.5 17.4 14.7 14.1 15.5 17.7 20.2 22.3 24.4 20.3
    Mean Min (°C) 14.1 14.5 12.6 9.7 7.6 5.8 5.2 5.5 6.7 8.0 10.5 11.8 9.3
    Mean Rain (mm) 29.5 31.5 25.7 37.5 34.8 38.5 38.2 41.8 45.3 45.5 45.4 28.8 443.7
    Mean Rain Days 4.7 4.2 5.4 7.5 9.6 10.8 12.2 11.9 11.4 9.8 8.0 6.8 96.2