Saint Mary Bay Weather Forecast

    • 11
    • 20

    Partly cloudy

    • 10
    • 23

    Sunny

    • 12
    • 25

    Sunny

    • 12
    • 26

    Sunny

    • 17
    • 29

    Partly cloudy

    • 17
    • 22

    Partly cloudy

    • 14
    • 24

    Partly cloudy

Today 14 Apr West Coast

Mostly clear. Winds southeast to southwesterly 15 to 20 km/h becoming light in the evening.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
South to southeasterly 10 to 15 knots tending east to southeasterly below 10 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southerly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening.
Weather
Mostly clear.
Weather Situation
A high pressure system centred over the south of SA will move slowly eastwards this week and a cold front will move across the far southeast of SA today followed by another cold front on Thursday. A second high pressure system is expected to follow and will become established south of the Bight late Thursday then will move eastwards during Friday and Saturday. A trough will move over the far west on Saturday.
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  • 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

    16.9 °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

    23.5 °C
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