Blenheim Beach Weather Forecast

    • 10
    • 25

    Mostly sunny

    • 11
    • 25

    Shower or two

    • 12
    • 23

    Showers increasing

    • 8
    • 17

    Windy. Partly cloudy

    • 9
    • 18

    Partly cloudy

    • 7
    • 22

    Sunny

    • 11
    • 26

    Sunny

Today 13 Sep Illawarra

Partly cloudy. Patchy fog early this morning. The chance of smoke haze in the north this morning. Winds west to northwesterly 15 to 20 km/h tending northwest to northeasterly in the early afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northerly 15 to 20 knots, reaching up to 25 knots offshore north of Port Kembla in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Port Kembla during the afternoon.
1st Swell
Southerly 1 to 1.5 metres.
Weather
Sunny.
Weather Situation
A high pressure system will drift across the Tasman Sea this weekend, causing winds to turn northeasterly. Northerly winds are expected to increase on Monday before turning southerly in the far south. This southerly change will continue to move north along the coast on Tuesday and strengthen.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Blenheim Beach Temperature Statistics View More

September Temperature

Point Perpendicular (10km)

  • Lowest 11 September, 2026

    10.4 °C

  • Average September

    16.4 °C

  • Highest 5 September, 2026

    26.4 °C

Climate (2021–2026)

Point Perpendicular (10km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    20.8 °C
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