Saint Peter Island Weather Forecast

    • 14
    • 16

    Partly cloudy

    • 12
    • 16

    Sunny

    • 13
    • 17

    Partly cloudy

    • 15
    • 21

    Partly cloudy

    • 18
    • 18

    Morning shower or two

    • 16
    • 17

    Possible shower

    • 15
    • 16

    Cloud clearing

Today 9 Sep West Coast

Partly cloudy. Winds southeasterly 25 to 40 km/h decreasing to 20 to 30 km/h in the evening.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southeasterly 20 to 30 knots turning easterly in the evening.
Seas
2 to 2.5 metres.
1st Swell
Southwesterly 3 to 4 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred south of the Bight extends a ridge across the south of SA. The main high centre will gradually move eastwards to be centred to the east of SA on Friday. A trough over the interior of WA will remain stationary for most of the week and may extend into the far west of SA at times. Another low pressure trough will approach from the west on Saturday and move across SA on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Saint Peter Island Temperature Statistics View More

September Temperature

Ceduna Airport (19km)

  • Lowest 6 September, 2026

    2.7 °C

  • Average September

    14.2 °C

  • Highest 1 September, 2026

    25.4 °C

Climate (2021–2026)

Ceduna Airport (19km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    10.9 °C

  • Average 2021–2026

    16.8 °C

  • Average High 2021–2026

    23.7 °C
Get WillyWeather+ to remove ads