North Island Weather Forecast

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    Shower

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    Shower

    • 14
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    Shower

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

Today 11 Aug Yorke Peninsula

Partly cloudy. Very high chance of showers, most likely this evening. Winds north to northwesterly 25 to 40 km/h tending west to northwesterly 20 to 30 km/h in the evening. Daytime maximum temperatures around 17.

Central Coastal Waters

Wind
Northwesterly 20 to 30 knots turning southwesterly 25 to 30 knots in the evening.
Seas
1 to 2 metres, increasing to 2 to 3 metres during the morning.
1st Swell
Southwesterly 4 metres, decreasing to 3 metres during the morning, then increasing to 3 to 4 metres by early evening.
Weather
Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the late morning and afternoon.
Weather Situation
A high pressure system is located just to the northeast of the state, ahead of a cold front forecast to move across the state from Tuesday and early Wednesday. A ridge of high pressure then pushes into the west of the state on Wednesday, with the associated high moving over the rest of SA on Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

North Island Temperature Statistics View More

August Temperature

Neptune Island (40km)

  • Lowest 4 August, 2026

    10.4 °C

  • Average August

    13.7 °C

  • Highest 7 August, 2026

    17.4 °C

Climate (2021–2026)

Neptune Island (40km)

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  • Average Low 2021–2026

    14.3 °C

  • Average 2021–2026

    16.2 °C

  • Average High 2021–2026

    18.8 °C
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