Forecast
Gretna (42.676°S, 146.9351°E, 80m AMSL) set as my default location ›
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My MLA
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Current condition
TODAY6° 11° Chance of rain: 80% Likely amount: 1-5mm First
lightLast light Sunrise Sunset 6:40am EST 7:10am EST 5:07pm EST 5:37pm EST NOW13.9° Feels Like: 10.3° Relative Humidity: 77% Dew: 9.9° Wind: SE 19km/h Gust: 20km/h Rainfall since 9am: 0.0mm Pressure: -
Today Weather
GretnaNow12.7°cFeels Like:12.1°Wind:S 6km/hGusts:7km/hHumidity:93%6°Min11°MaxToday in GretnaCloudy. High chance of showers, most likely during the morning and afternoon. Light winds. Daytime maximum temperatures between 11 and 15.Tomorrow8°Min14°MaxPartly cloudy. The chance of morning fog. Light winds. Overnight temperatures falling to around 5 with daytime temperatures reaching between 13 and 18. -
Radar
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Popup Radar
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Warnings
There are no current warnings for Gretna
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7 day forecast
Today: Cloudy. High chance of showers, most likely during the morning and afternoon. Light winds. Daytime maximum temperatures between 11 and 15.
Forecast for Gretna (42.676°S, 146.9351°E, 80m AMSL) Wed Thu Fri Sat Sun Mon Tue Summary Minimum 6° 8° 8° 7° 5° 6° 6° Maximum 11° 14° 13° 13° 14° 13° 13° Chance of rain 80% 10% 30% 10% 30% 60% 80% Likely amount 1-5mm < 1mm < 1mm < 1mm < 1mm < 1mm 1-5mm UV index Low Low Low Low Low Low Low Fire Danger Rating - - - - - - - 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 1
(km/h)5
(km/h)3
(km/h)5
(km/h)2
(km/h)5
(km/h)2
(km/h)3
(km/h)3
(km/h)3
(km/h)4
(km/h)9
(km/h)9
(km/h)13
(km/h)Wind direction SW ESE NW E WSW E WNW E WNW NE WNW NW NW NW Relative humidity 88% 88% 93% 69% 91% 74% 90% 66% 89% 61% 85% 70% 76% 68% Dew point 7°C 9°C 8°C 8°C 8°C 8°C 7°C 7°C 6°C 7°C 7°C 7°C 5°C 8°C -
28 Day Rainfall forecast
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12 Month Rainfall Forecast
Gretna Rain Forecast
Gretna 12-month Rainfall ForecastMayJunJulAugSepOctNovDecJanFebMar2024202567665756756105012 - 34 - 78 - 910Well below normalBelow normalNear normalAbove normalWell above normalIssue Notes - Issued May 1
ENSO status: Inactive. IOD status: Neutral, becoming positive. SAM status: Neutral, favouring positive in winter. The El Niño Southern Oscillation (ENSO) is in an inactive phase. Ocean cooling is occurring in the eastern Pacific, with 3 out of 7 global models forecasting a La Niña to develop in 2024. Warmer than normal waters are situated in the Coral Sea, providing moisture and humidity to the east coast. The atmosphere continues to be firmly neutral after weakening early in the year. A neutral ENSO typically has no significant impact on Australian rainfall during winter. The Indian Ocean Dipole (IOD) is in a neutral phase. Ocean temperatures are at record levels in the western Indian Ocean, and the IOD index is spiking in response. Persistent southeasterly winds have set in over the eastern Indian Ocean, signalling that the atmosphere is starting to respond to the ocean patterns. A burst of tropical activity expected in mid-May could make-or-break this event, as tropical activity in certainlocations could either strengthen or hinder the development of a positive IOD. If this tropical activity is favourable for a positive IOD, significant upwelling near Indonesia may occur as soon as late-May. A positive IOD reduces the number of northwest cloudbands that cross Australia during winter and spring, reducing rainfall across central and southeastern parts of Australia. The Southern Annular Mode (SAM) is neutral but is expected to favour a positive phase during winter. A positive SAM increases easterly winds, increasing rainfall and thunderstorm activity in the east, while cooling temperatures. A positive SAM reduces cold fronts and rainfall over southern Australia, particularly for southwest WA. Rainfall outlooks are showing slightly below average rainfall over winter for WA, and the southwest coasts of SA, Vic and Tas. Conversely, above average rainfall is expected for eastern parts of Qld and NSW, and potentially eastern Tas.
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Popup - Daily historical
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Long range rainfall forecast
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Past 5 Days
Gretna Past 5 Days
This MonthMinimum Maximum Rainfall Saturday
May 043.0 °C 15.9 °C 0.0 mmSunday
May 05-0.8 °C 15.9 °C 0.0 mmMonday
May 063.0 °C 17.6 °C 0.0 mmTuesday
May 07-0.1 °C 16.8 °C 0.0 mmWednesday
May 089.6 °C 14.4 °C 0.0 mmLegend -
Almanac
Almanac
Gretna minimum temp history (42.676°S, 146.9351°E, 80m AMSL) MAXIMUM TEMPERATURE MINIMUM TEMPERATURE Hottest this month 17.6° 06/05/2024 Coldest this month -1.2° 01/05/2024 Hottest on record 25.6 08/05/2002 Coldest on record -6.0 22/05/2008 Hottest this year 35.1° 22/02/2024 Coldest this year -1.2° 01/05/2024 Long term average 14.4° Long term average 3.9° Average this month 16.1° Average this month 0.4° Hottest May On Record Avg. max. temp. 17.1° 2007 Coldest May on record Avg. min. temp. 1.6° 1979 Gretna rainfall history (42.676°S, 146.9351°E, 80m AMSL) RAINFALL Wettest This Month 0.0mm 01/05/2024 Total This Month 0.0mm
0.0 daysLong Term Average 45.8mm 14.7 days Wettest May on record 200.8mm 1958 Driest on record 2.1mm 1934 -
Year to Date
Gretna Year To Date
Average Rainfall To May 201.7mm 54.1 day(s) Total For 2024 103.4mm 33.0 day(s) Total To This Day 2023 106.8mm 37.0 day(s) Wettest Day 21.2mm Jan 8 Lowest Temperature -1.2°C May 1 Highest Temperature 35.1°C Feb22 -
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Popup - Monthly historical
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Climatology
Climate History
Gretna Climatology
Gretna Long-Term Averages
Long-Term Averages Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann Mean Max (°C) 24.3 24.2 21.9 18.2 14.4 11.5 11.4 13.2 15.4 17.8 19.9 22.1 17.8 Mean Min (°C) 10.2 10.0 8.4 6.1 3.9 2.0 1.4 2.2 3.9 5.7 7.6 9.0 5.8 Mean Rain (mm) 38.1 34.1 37.7 46.0 45.8 47.4 50.9 54.9 52.8 56.6 49.4 49.4 559.1 Mean Rain Days 9.2 8.2 10.0 12.0 14.7 16.1 17.6 16.8 15.8 15.7 13.1 11.6 159.8