Cat Bay Weather Forecast

    • 11
    • 18

    Clear

    • 11
    • 26

    Mostly sunny

    • 15
    • 30

    Sunny

    • 17
    • 27

    Possible shower

    • 15
    • 21

    Partly cloudy

    • 13
    • 20

    Showers

    • 13
    • 20

    Cloudy

Today 16 Dec Central

Clear. Winds south to southeasterly 15 to 20 km/h becoming light in the late evening.

Western Port Local Waters

Wind
South to southeasterly below 10 knots.
Seas
Below 0.5 metres.
Weather
Clear.
Weather Situation
A high pressure system in Bass Strait will maintain a ridge across Victoria as it drifts into the Tasman Sea on Wednesday. The high will continue to extend a ridge over Victoria until a broad area of low pressure develops to the south west on Friday. This area of low pressure will develop into a trough, crossing the state on Saturday.
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  • Temperature Forecast Bureau of Meteorology

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Cat Bay Temperature Statistics View More

December Temperature

Rhyll (14km)

  • Lowest 7 December, 2025

    8.6 °C

  • Average December

    16.1 °C

  • Highest 4 December, 2025

    31.6 °C

Climate (2020–Present)

Rhyll (14km)

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  • Average Low 2020–2025

    12.1 °C

  • Average 2020–2025

    15.1 °C

  • Average High 2020–2025

    19.2 °C
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