Port Bonython Weather Forecast

    • 15
    • 30

    Mostly clear

    • 16
    • 30

    Mostly sunny

    • 13
    • 30

    Sunny

    • 14
    • 29

    Mostly sunny

    • 15
    • 30

    Partly cloudy

    • 14
    • 24

    Partly cloudy

    • 13
    • 25

    Mostly sunny

Today 21 Apr Whyalla

Mostly clear. Winds northerly 15 to 20 km/h.

Spencer Gulf Coastal Waters

Wind
Northerly 10 to 15 knots, reaching up to 20 knots near the Yorke Peninsula coast.
Seas
Around 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
Weather
Partly cloudy.
Weather Situation
A strong high pressure system east of Tasmania will maintain a ridge over SA this week. A cold front is expected to weaken and slide across western and southern coasts on Wednesday. A second cold front may pass over the south again on Saturday with a high pressure system to follow over waters south of the Bight on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Bonython Temperature Statistics View More

April Temperature

Whyalla Airport (24km)

  • Lowest 15 April, 2026

    8.5 °C

  • Average April

    19.1 °C

  • Highest 6 April, 2026

    34.7 °C

Climate (2021–Present)

Whyalla Airport (24km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    23.8 °C
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