Hawkesbury River - Flint and Steel Bay Weather Forecast

    • 19
    • 23

    Mostly sunny

    • 19
    • 23

    Becoming cloudy

    • 19
    • 22

    Cloudy

    • 19
    • 25

    Partly cloudy

    • 21
    • 29

    Mostly sunny

    • 22
    • 27

    Partly cloudy

    • 21
    • 26

    Partly cloudy

Today 21 Jan Sydney

Mostly sunny. Slight chance of a shower along the coastal fringe, near zero chance elsewhere. Light winds becoming easterly 15 to 20 km/h in the early afternoon then becoming light in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
South to southwesterly about 10 knots becoming southeasterly in the middle of the day then becoming east to northeasterly in the late afternoon.
Seas
Below 0.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge lies over the NSW coast bringing east to southeasterly winds to Sydney local waters. This ridge will gradually weaken on Wednesday as winds shift southerly. Winds briefly turn east or northeasterly before another, stronger southerly change moves arrives with the passage of a trough. Winds gradually turn northeasterly as the ridge re-establishes itself along the coast Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Hawkesbury River - Flint and Steel Bay Temperature Statistics View More

January Temperature

Terrey Hills (13km)

  • Lowest 12 January, 2026

    15.5 °C

  • Average January

    21.2 °C

  • Highest 10 January, 2026

    40.5 °C

Climate (2021–Present)

Terrey Hills (13km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    16.9 °C

  • Average High 2021–2026

    21.8 °C
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