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Forecast

Summer Island (30.9889°S, 152.9856°E, 1m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Windy 14° 24°
    Chance of rain: 20%
    Likely amount: < 1mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    5:15am EST 5:40am EST 5:43pm EST 6:07pm EST
    NOW
    15.7° Feels Like: 16.1°
    Relative Humidity: 99%
    Dew: 15.5°
    Wind: NW 7km/h
    Gust: NW 7km/h
    Rainfall since 9am: 6.6mm
    Pressure: 1024.7hPa
  3. Today Weather

    Summer Island
    Now
    16.9°c
    Feels Like:
     
    Wind:
    N 11km/h
    Gusts:
    13km/h
    Humidity:
     
    Windy
     
    14°
    Min
    24°
    Max
    Today in Summer Island
    Partly cloudy. Patchy morning fog. Slight chance of a shower in the north. Winds N/NE 25 to 35 km/h. Daytime maximum temperatures 22 to 28.
    Tomorrow
    Late shower
    13°
    Min
    26°
    Max
    Partly cloudy. Areas of fog in the early morning. High chance of showers in the south, medium chance elsewhere. The chance of a thunderstorm from the late morning. Winds N/NW 15 to 25 km/h turning E/NE during the morning then becoming light in the evening. Overnight temperatures falling to between 11 and 14 with daytime temperatures reaching 23 to 29.
  4. Radar

  5. Popup Radar

  6. Warnings

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Partly cloudy. Patchy morning fog. Slight chance of a shower in the north. Winds N/NE 25 to 35 km/h. Daytime maximum temperatures 22 to 28.

    Forecast for Summer Island (30.9889°S, 152.9856°E, 1m AMSL)
      Sat Sun Mon Tue Wed Thu Fri
    Summary Windy Late shower Fog then sunny Mostly sunny Mostly sunny Possible shower Showers increasing
    Minimum 14° 13° 12° 10°
    Maximum 24° 26° 25° 21° 23° 22° 24°
    Chance of rain 20% 50% 20% 5% 50% 90% 70%
    Likely amount < 1mm 1-5mm < 1mm < 1mm 1-5mm 1-5mm < 1mm
    UV index Very High - - - - - -
    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 28
    (km/h)
    35
    (km/h)
    28
    (km/h)
    26
    (km/h)
    14
    (km/h)
    22
    (km/h)
    14
    (km/h)
    16
    (km/h)
    11
    (km/h)
    18
    (km/h)
    8
    (km/h)
    14
    (km/h)
    11
    (km/h)
    18
    (km/h)
    Wind direction NE NE NNE NE SW SSE SW SE N ENE SE E NNW ENE
    Relative humidity 83% 81% 75% 78% 73% 61% 50% 54% 64% 63% 80% 77% 74% 72%
    Dew point 17°C 19°C 17°C 19°C 17°C 13°C 5°C 11°C 10°C 14°C 12°C 17°C 13°C 19°C
  9. 28 Day Rainfall forecast

    Summer Island Rain Forecast


    Summer Island 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    21
    LOW
    22
    MEDIUM
    23
    LOW
    24
    LOW
    25
    LOW
    26
    MEDIUM
    27
    HIGH
    28
    29
    30
    Oct 1
    LOW
    2
    LOW
    3
    MEDIUM
    4
    LOW
    5
    MEDIUM
    6
    7
    8
    LOW
    9
    LOW
    10
    MEDIUM
    11
    MEDIUM
    12
    13
    14
    15
    16
    LOW
    17
    LOW
    18
    LOW
    19
    LOW
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Sep20

    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, Western Australia, eastern Australia, New Zealand, the south Pacific, the southeast Pacific, and South America.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 28 September to 2 October, 3 October to 7 October, and 14 October to 18 October. Rain events originating in the tropics and moving south are possible about 25 September to 29 September, 3 October to 7 October, and 22 October to 26 October. Over Western Australia the strongest cold fronts should occur about 27 September to 1 October, 3 October to 7 October, and 14 October to 18 October.

  10. 12 Month Rainfall Forecast

    Summer Island Rain Forecast


    Summer Island 12-month Rainfall Forecast
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    2019
    2020
    2
    3
    4
    5
    4
    6
    4
    5
    7
    7
    7
    6
    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 Sep 10

    ENSO status: Neutral IOD status: Positive Sea surface temperatures (SSTs) continued the cooling trend over the central Pacific during August, with areas in the eastern equatorial Pacific exhibiting below average temperatures for the first time in about two years. The Nino3.4 index lingered between 0.2 and 0.1 through the month of August. The Southern Oscillation Index (SOI) recorded a value of -4.4 during the past month, which remains in neutral territory. Current consensus suggests warmer than average SSTs will persist across the equatorial Pacific Ocean through the austral spring, but well within neutral values. Although, three out of eight international models maintain a slightly warmer than average Pacific Ocean through the end of 2019, none of these are likely to reach El Nino thresholds during the 2019/2020 summer. Moreover, the IRI ENSO forecast suggests 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. All six international models maintain a strong positive event until the beginning of the summer. The climate outlook for spring favours below average rainfall across the southern half, and in particular 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 spring due to a reduction of moisture streaming from the northwest. On the other hand, far southern Victoria and western Tasmania could see above average rainfall during this period as a sudden stratospheric warming (SSW) over Antarctica looks to enhance the negative phase of the southern annular mode (SAM) over the coming months.

  11. Long range rainfall forecast

    Summer Island Rain Forecast


    Summer Island 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    21
    LOW
    22
    MEDIUM
    23
    LOW
    24
    LOW
    25
    LOW
    26
    MEDIUM
    27
    HIGH
    28
    29
    30
    Oct 1
    LOW
    2
    LOW
    3
    MEDIUM
    4
    LOW
    5
    MEDIUM
    6
    7
    8
    LOW
    9
    LOW
    10
    MEDIUM
    11
    MEDIUM
    12
    13
    14
    15
    16
    LOW
    17
    LOW
    18
    LOW
    19
    LOW
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Sep20

    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, Western Australia, eastern Australia, New Zealand, the south Pacific, the southeast Pacific, and South America.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 28 September to 2 October, 3 October to 7 October, and 14 October to 18 October. Rain events originating in the tropics and moving south are possible about 25 September to 29 September, 3 October to 7 October, and 22 October to 26 October. Over Western Australia the strongest cold fronts should occur about 27 September to 1 October, 3 October to 7 October, and 14 October to 18 October.

  12. Popup - Daily historical

  13. Past 5 Days

    Summer Island Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Monday
    Sep 16
    - 24.0 °C
    0.0 mm
    Tuesday
    Sep 17
    13.9 °C 22.0 °C
    0.0 mm
    Wednesday
    Sep 18
    11.4 °C 22.0 °C
    21.0 mm
    Thursday
    Sep 19
    13.0 °C 25.0 °C
    0.8 mm
    Friday
    Sep 20
    15.1 °C -
    9.4 mm
    Legend
  14. Almanac

    Almanac


    Summer Island minimum temp history (30.9889°S, 152.9856°E, 1m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 28.6° 06/09/2019 Coldest this month 10.4° 12/09/2019
    Hottest on record 35.6 27/09/1965 Coldest on record 4.4 05/09/1971
    Hottest this year 33.6° 05/02/2019 Coldest this year 7.2° 13/08/2019
    Long term average 22.0° Long term average 13.6°
    Average this month 24.0° Average this month 12.9°
    Hottest September On Record Avg. max. temp. 25.1° 2013 Coldest September on record Avg. min. temp. 11.5° 1969
    Summer Island rainfall history (30.9889°S, 152.9856°E, 1m AMSL)
    RAINFALL
    Wettest This Month 21.0mm 18/09/2019 Total This Month 30.8mm
    3.0 days
    Long Term Average 56.6mm 8.4 days Wettest September on record 254.4mm 2013
  15. Popup - Radar

  16. Year to Date

    Summer Island Year To Date

    Average Rainfall To Sep 1159.7mm 102.1 day(s)
    Total For 2019 711.8mm 78.0 day(s)
    Total To This Day 2018 889.1mm 71.0 day(s)
    Wettest Day 74.0mm Mar 8
    Lowest Temperature 7.2°C Aug13
    Highest Temperature 33.6°C Feb 5
  17. Popup - Monthly historical

  18. Climatology

    Summer Island Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 27.1 27.2 26.3 24.3 21.7 19.4 18.9 20.1 22.0 23.5 24.6 26.1 23.4
    Mean Min (°C) 19.7 19.8 18.8 16.7 14.5 12.3 11.3 11.9 13.6 15.2 16.8 18.5 15.7
    Mean Rain (mm) 146.8 170.6 187.1 169.6 132.0 138.2 76.8 82.0 56.6 90.3 115.9 117.7 1485.9
    Mean Rain Days 13.5 13.9 15.5 12.9 11.2 10.4 8.2 8.1 8.4 10.9 11.7 12.7 136.7