Blenheim Beach Weather Forecast

    • 17
    • 33

    Possible shower

    • 15
    • 21

    Cloudy

    • 14
    • 22

    Cloudy

    • 13
    • 26

    Cloud clearing

    • 14
    • 31

    Sunny

    • 16
    • 33

    Sunny morning. Shower or two

    • 18
    • 29

    Shower or two

Today 14 Dec Illawarra

Partly cloudy. Medium chance of showers. The chance of a thunderstorm in the early morning. Winds west to northwesterly 25 to 40 km/h shifting south to southeasterly 30 to 45 km/h in the evening. Overnight temperatures falling to between 14 and 18 with daytime temperatures reaching 27 to 32.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northwesterly 10 to 15 knots tending north to northeasterly 15 to 25 knots in the middle of the day then shifting southerly in the evening. Winds reaching up to 30 knots in the evening.
Seas
Around 1 metre, increasing to 1.5 to 2 metres south of Port Kembla by early evening.
1st Swell
Easterly 1 to 1.5 metres, tending northeasterly 1 to 1.5 metres around midday, then decreasing to around 1 metre by early evening.
Weather
Mostly sunny. 60% chance of showers. The chance of a thunderstorm in the early morning.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Blenheim Beach Temperature Statistics View More

December Temperature

Point Perpendicular (10km)

  • Lowest 2 December, 2025

    10.3 °C

  • Average December

    20 °C

  • Highest 5 December, 2025

    33 °C

Climate (2020–Present)

Point Perpendicular (10km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    17.4 °C

  • Average High 2020–2025

    20.7 °C
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