Myponga Beach Weather Forecast

    • 13
    • 25

    Shower

    • 14
    • 22

    Shower

    • 12
    • 21

    Cloudy

    • 13
    • 21

    Cloudy

    • 13
    • 22

    Cloudy

    • 13
    • 21

    Cloudy

    • 13
    • 26

    Partly cloudy

Today 20 Dec Mount Lofty Ranges

Mostly sunny day. Slight chance of a shower later tonight. Winds south to southeasterly 15 to 25 km/h tending east to southeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures 22 to 30.

Investigator Strait Coastal Waters

Wind
Southerly 10 to 15 knots turning southeasterly 15 to 20 knots in the morning.
Seas
Below 1 metre, increasing to 1 to 1.5 metres by early evening.
1st Swell
Southerly around 1 metre through the Backstairs Passage.
Weather
Partly cloudy.
Weather Situation
A broad trough of low pressure lies over east and northern parts of the State. This area of low pressure is expected to linger over the northeast today before moving east Sunday with the next low pressure system that develops south of the bight. A high pressure ridge then extends over the west and south during Sunday, and throughout by Monday. A persistent high pressure ridge remains over the State and Coastal Waters during Tuesday and Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Myponga Beach Temperature Statistics View More

December Temperature

Parawa West (Second Valley Forest) (23km)

  • Lowest 7 December, 2025

    7.1 °C

  • Average December

    16.5 °C

  • Highest 18 December, 2025

    37 °C

Climate (2020–Present)

Parawa West (Second Valley Forest) (23km)

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  • Average Low 2020–2025

    10.4 °C

  • Average 2020–2025

    13.4 °C

  • Average High 2020–2025

    17.6 °C
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