St Andrews Beach Weather Forecast

    • 11
    • 20

    Rain

    • 11
    • 19

    Shower

    • 12
    • 19

    Shower

    • 12
    • 20

    Shower

    • 11
    • 18

    Shower

    • 11
    • 18

    Cloudy

    • 11
    • 23

    Sunny

Today 21 Dec Mornington Peninsula

Cloudy. Very high chance of rain. The chance of a thunderstorm this afternoon. Winds southeasterly 15 to 25 km/h turning southwesterly 25 to 40 km/h in the evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Variable about 10 knots becoming east to southeasterly 15 to 20 knots in the middle of the day then shifting southwesterly 15 to 25 knots in the late afternoon. Winds reaching up to 30 knots in the evening.
Seas
Below 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Weather
Cloudy. 90% chance of rain. The chance of a thunderstorm during this afternoon and early evening.
Weather Situation
A low pressure system south of the Bight will move east and combine with a broad trough over western Victoria early Sunday. The low pressure system will then deepen and slowly move southeast across the State during Sunday to clear into eastern Bass Strait late Sunday. A high pressure ridge then builds across Victoria and Bass Strait during Monday. A weak cold front crosses Bass Strait during late Monday and early Tuesday with the ridge re-establishing itself from Tuesday to Thursday.
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  • Temperature Forecast Bureau of Meteorology

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St Andrews Beach Temperature Statistics View More

December Temperature

Cerberus (31km)

  • Lowest 3 December, 2025

    6 °C
  • Average December

    16.5 °C
  • Highest 18 December, 2025

    35.8 °C

Climate (2020–Present)

Cerberus (31km)

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  • Average Low 2020–2025

    10.1 °C
  • Average 2020–2025

    14.5 °C
  • Average High 2020–2025

    19.5 °C
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