Thelma Head Weather Forecast

    • 18
    • 22

    Cloudy

    • 17
    • 27

    Becoming windy. Partly cloudy

    • 18
    • 33

    Sunny

    • 18
    • 24

    Partly cloudy

    • 17
    • 21

    Showers

    • 16
    • 22

    Showers

    • 17
    • 28

    Shower or two

Today 7 Dec Sydney

Cloudy. Slight chance of a shower. Winds southeasterly 25 to 35 km/h decreasing to 15 to 20 km/h in the late evening.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots offshore in the late afternoon.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore.
1st Swell
Southerly 2 to 2.5 metres.
Weather
Cloudy. The chance of a thunderstorm offshore south of Port Kembla early this evening.
Weather Situation
A cold front is bringing a fresh to strong southerly change for northern parts of the coast as a ridge builds over central and southern parts of the coast in its wake, bringing southeasterly winds to these areas. Winds will turn northeasterly Monday as the ridge moves further east, before another cold front brushes central and southern parts of the coast on Tuesday and Wednesday, bringing a southerly change with it.
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Thelma Head Temperature Statistics View More

December Temperature

Bellambi (24km)

  • Lowest 2 December, 2025

    12.8 °C

  • Average December

    21.4 °C

  • Highest 5 December, 2025

    36.7 °C

Climate (2020–Present)

Bellambi (24km)

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  • Average Low 2020–2025

    15 °C

  • Average 2020–2025

    18 °C

  • Average High 2020–2025

    21.7 °C
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