Saint Mary Bay Weather Forecast

    • 14
    • 20

    Cloudy

    • 11
    • 20

    Partly cloudy

    • 13
    • 27

    Storm

    • 18
    • 30

    Storm

    • 15
    • 25

    Partly cloudy

    • 18
    • 26

    Partly cloudy

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    Partly cloudy

Today 19 Nov West Coast

Partly cloudy. Winds south to southwesterly 20 to 25 km/h tending south to southeasterly 20 to 30 km/h during the afternoon and evening.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southerly 10 to 15 knots, reaching up to 20 knots inshore in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Cloudy.
Weather Situation
A high pressure system centred well south of Perth extends a ridge over SA with a broad south to southwesterly flow extending across agricultural areas. A weak cold front will clip southern coasts late Wednesday evening. The ridge will move southeast on Thursday as the high centre moves to a position well south of the Bight by Thursday night. The high will pass over Tasmania on Friday and a trough will move over the far west of SA. This trough will move slowly over the state during the weekend to reach eastern districts late Saturday. A second low pressure trough is expected enter the far west of SA on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Saint Mary Bay Temperature Statistics View More

November Temperature

Streaky Bay (45km)

  • Lowest 18 November, 2025

    0 °C

  • Average November

    17.1 °C

  • Highest 1 November, 2025

    34.8 °C

Climate (2020–Present)

Streaky Bay (45km)

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  • Average Low 2020–2025

    12 °C

  • Average 2020–2025

    16.4 °C

  • Average High 2020–2025

    23.5 °C
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