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Forecast

Port Arthur (34.146°S, 138.0522°E, 21m AMSL) set as my default location ›

  1. My MLA

  2. Current condition

    TODAY
    Thunderstorms 10° 10°
    Chance of rain: 90%
    Likely amount: 1-5mm
    First
    light
    Sunrise Sunset Last light
    Sunrise Sunset
    6:29am CST 6:55am CST 5:49pm CST 6:15pm CST
    NOW
    12.5° Feels Like: 8.3°
    Relative Humidity: 80%
    Dew: 9.1°
    Wind: W 20km/h
    Gust: W 20km/h
    Rainfall since 9am: 0.0mm
    Pressure: 1010.6hPa
  3. Today Weather

    Port Arthur
    Now
    9.3°c
    Feels Like:
    7.2°
    Wind:
    NW 6km/h
    Gusts:
    7km/h
    Humidity:
    78%
    Thunderstorms
     
    10°
    Min
    10°
    Max
    Today in Port Arthur
    Cloudy. Very high chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the morning and afternoon. Possible small hail from the late morning. Winds W/NW 35 to 50 km/h turning SW 20 to 30 km/h in the afternoon. Overnight temperatures falling to around 6 with daytime temperatures reaching around 14.
    Tomorrow
    Mostly sunny
    Min
    12°
    Max
    Partly cloudy. Medium chance of showers, with possible small hail in the early morning. Winds SW 20 to 30 km/h turning W 15 to 25 km/h in the late afternoon. Overnight temperatures falling to between 2 and 6 with daytime temperatures reaching around 15.
  4. Radar

  5. Popup Radar

  6. Warnings

    There are no current warnings for Port Arthur

  7. Next 48 Hours


    Next 48 Hours


  8. 7 day forecast

    Today: Cloudy. Very high chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the morning and afternoon. Possible small hail from the late morning. Winds W/NW 35 to 50 km/h turning SW 20 to 30 km/h in the afternoon. Overnight temperatures falling to around 6 with daytime temperatures reaching around 14.

    Forecast for Port Arthur (34.146°S, 138.0522°E, 21m AMSL)
      Sun Mon Tue Wed Thu Fri Sat
    Summary Thunderstorms Mostly sunny Mostly cloudy Possible shower Mostly sunny Sunny Mostly sunny
    Minimum 10° 10° 12° 10° 11°
    Maximum 10° 12° 14° 14° 13° 16° 16°
    Chance of rain 90% 30% 30% 40% 10% 5% 10%
    Likely amount 1-5mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm
    UV index Moderate Moderate Moderate Moderate - - -
    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 36
    (km/h)
    31
    (km/h)
    18
    (km/h)
    22
    (km/h)
    20
    (km/h)
    27
    (km/h)
    20
    (km/h)
    22
    (km/h)
    17
    (km/h)
    16
    (km/h)
    13
    (km/h)
    13
    (km/h)
    23
    (km/h)
    22
    (km/h)
    Wind direction WNW W WSW WSW W W WSW WSW SSW S NNE NNE N NNW
    Relative humidity 75% 62% 66% 64% 83% 70% 86% 76% 81% 70% 76% 53% 58% 48%
    Dew point 6°C 3°C 4°C 5°C 9°C 9°C 11°C 10°C 9°C 8°C 6°C 6°C 5°C 6°C
  9. 28 Day Rainfall forecast

    Port Arthur Rain Forecast


    Port Arthur 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    18
    HIGH
    19
    MEDIUM
    20
    MEDIUM
    21
    MEDIUM
    22
    23
    24
    25
    26
    LOW
    27
    28
    29
    30
    LOW
    31
    Sep 1
    LOW
    2
    HIGH
    3
    LOW
    4
    LOW
    5
    6
    LOW
    7
    LOW
    8
    9
    10
    LOW
    11
    LOW
    12
    13
    14
    LOW
    15
    MEDIUM
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug17

    Issue Notes

    The hemispheric long wave pattern has been relatively fast moving in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of South Africa, Western Australia, New Zealand, the south Pacific, and the southeast Pacific.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 31 August to 4 September, 13 September to 17 September, and 17 September to 21 September. Rain events originating in the tropics and moving south are possible about 15 August to 19 August. Over Western Australia the strongest cold fronts should occur about 31 August to 4 September, 4 September to 8 September, and 16 September to 20 September.

  10. 12 Month Rainfall Forecast

    Port Arthur Rain Forecast


    Port Arthur 12-month Rainfall Forecast
    Aug
    Sep
    Oct
    Nov
    Dec
    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    2019
    2020
    6
    6
    5
    4
    5
    4
    6
    7
    5
    4
    9
    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

    Port Arthur Rain Forecast


    Port Arthur 28-day Rainfall Forecast
    SUN
    MON
    TUE
    WED
    THU
    FRI
    SAT
    18
    HIGH
    19
    MEDIUM
    20
    MEDIUM
    21
    MEDIUM
    22
    23
    24
    25
    26
    LOW
    27
    28
    29
    30
    LOW
    31
    Sep 1
    LOW
    2
    HIGH
    3
    LOW
    4
    LOW
    5
    6
    LOW
    7
    LOW
    8
    9
    10
    LOW
    11
    LOW
    12
    13
    14
    LOW
    15
    MEDIUM
    CHANCE OF RAINFALL WITHIN DISTRICT
    NIL < 25%
    LOW 25% to 50%
    MEDIUM 50% to 75%
    HIGH ≥ 75%
    Issued Aug17

    Issue Notes

    The hemispheric long wave pattern has been relatively fast moving in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of South Africa, Western Australia, New Zealand, the south Pacific, and the southeast Pacific.

    Summary:

    Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 31 August to 4 September, 13 September to 17 September, and 17 September to 21 September. Rain events originating in the tropics and moving south are possible about 15 August to 19 August. Over Western Australia the strongest cold fronts should occur about 31 August to 4 September, 4 September to 8 September, and 16 September to 20 September.

  12. Popup - Daily historical

  13. Past 5 Days

    Port Arthur Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Tuesday
    Aug 13
    -1.2 °C 14.6 °C
    0.8 mm
    Wednesday
    Aug 14
    -0.5 °C 18.0 °C
    0.0 mm
    Thursday
    Aug 15
    4.5 °C 20.6 °C
    0.0 mm
    Friday
    Aug 16
    10.9 °C 16.8 °C
    0.0 mm
    Saturday
    Aug 17
    0.5 °C 18 °C
    0.2 mm
    Legend
  14. Almanac

    Almanac


    Port Arthur minimum temp history (34.146°S, 138.0522°E, 21m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 20.6° 15/08/2019 Coldest this month -1.2° 13/08/2019
    Hottest on record 29.1 30/08/2007 Coldest on record -2.5 04/08/2014
    Hottest this year 47.9° 24/01/2019 Coldest this year -2.0° 24/06/2019
    Long term average 17.1° Long term average 4.7°
    Average this month 16.0° Average this month 3.8°
    Hottest August On Record Avg. max. temp. 19.0° 2007 Coldest August on record Avg. min. temp. 2.0° 2014
    Port Arthur rainfall history (34.146°S, 138.0522°E, 21m AMSL)
    RAINFALL
    Wettest This Month 5.8mm 08/08/2019 Total This Month 13.2mm
    7.0 days
    Long Term Average 30.6mm 14.9 days Wettest August on record 50.2mm 2007
  15. Popup - Radar

  16. Year to Date

    Port Arthur Year To Date

    Average Rainfall To Aug 250.2mm 79.8 day(s)
    Total For 2019 139.0mm 59.0 day(s)
    Total To This Day 2018 96.6mm 47.0 day(s)
    Wettest Day 24.6mm Jun12
    Lowest Temperature -2.0°C Jun24
    Highest Temperature 47.9°C Jan24
  17. Popup - Monthly historical

  18. Climatology

    Port Arthur Climatology

    Long-Term Averages
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
    Mean Max (°C) 32.1 30.9 28.5 23.9 19.6 16.0 15.3 17.1 20.3 24.2 27.8 29.3 23.8
    Mean Min (°C) 15.7 15.0 13.6 10.4 8.4 6.1 5.2 4.7 6.0 8.1 11.1 13.3 9.8
    Mean Rain (mm) 15.6 14.3 34.2 30.9 43.5 44.5 36.6 30.6 35.3 21.9 16.3 31.5 354.1
    Mean Rain Days 4.7 2.8 6.3 8.7 11.5 15.5 15.4 14.9 10.8 6.3 5.5 6.2 99.1