Saint Mary Bay Weather Forecast

    • 15
    • 24

    Partly cloudy

    • 16
    • 20

    Shower

    • 15
    • 18

    Cloudy

    • 14
    • 17

    Cloudy

    • 12
    • 17

    Cloudy

    • 10
    • 19

    Partly cloudy

    • 12
    • 22

    Sunny

Today 8 Apr West Coast

Partly cloudy. Slight chance of a shower, becoming less likely in the afternoon. The chance of a thunderstorm. Winds north to northwesterly 15 to 25 km/h shifting south to southwesterly in the late afternoon. Daytime maximum temperatures in the high 20s.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
North to northwesterly 10 to 15 knots turning west to southwesterly below 10 knots in the afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. The chance of a thunderstorm.
Weather Situation
A high-pressure system south of the state will move east today allowing a strong cold front to move over South Australia later Thursday. A cooler southwest to southerly flow will gradually moderate as a stronger high-pressure system moves in from the west from Friday to be south of the state on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Saint Mary Bay Temperature Statistics View More

April Temperature

Streaky Bay (45km)

  • Lowest 2 April, 2026

    8.5 °C

  • Average April

    16.8 °C

  • Highest 4 April, 2026

    29 °C

Climate (2021–Present)

Streaky Bay (45km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    16.5 °C

  • Average High 2021–2026

    23.6 °C
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