Myponga Beach Weather Forecast

    • 8
    • 20

    Sunny

    • 11
    • 17

    Shower

    • 8
    • 14

    Shower

    • 10
    • 16

    Shower

    • 10
    • 16

    Cloudy

    • 8
    • 16

    Cloudy

    • 9
    • 16

    Cloudy

Today 18 Sep Mount Lofty Ranges

Sunny. Winds northerly 20 to 30 km/h increasing to 35 km/h before turning northwesterly 15 to 20 km/h in the late morning and afternoon. Daytime maximum temperatures between 19 and 23.

Investigator Strait Coastal Waters

Wind
Northerly 15 to 20 knots turning west to northwesterly 10 to 15 knots in the late afternoon.
Seas
Below 1 metre, increasing to 1 to 1.5 metres around midday, then decreasing below 1 metre later in the evening.
1st Swell
West to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres by early evening.
Weather
Mostly sunny.
Weather Situation
A high pressure system lies over NSW with a ridge extending into the east of the state. A weak trough will move over South Australian waters later today, settling over the far northeast tonight before clearing on Friday. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Myponga Beach Temperature Statistics View More

September Temperature

Parawa West (Second Valley Forest) (23km)

  • Lowest 5 September, 2025

    5.1 °C
  • Average September

    11 °C
  • Highest 6 September, 2025

    22.9 °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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