Johnstons Bay Weather Forecast

    • 25
    • 43

    Windy. Sunny

    • 21
    • 26

    Showers increasing

    • 19
    • 25

    Shower or two

    • 19
    • 29

    Possible shower

    • 21
    • 30

    Shower or two

    • 21
    • 29

    Shower or two

    • 19
    • 26

    Shower or two

Today 10 Jan Sydney

Sunny. Damaging winds possible. Winds northwesterly 25 to 40 km/h decreasing to 20 to 30 km/h in the early afternoon then shifting south to southeasterly 25 to 40 km/h in the late evening.

Extreme Fire Danger Rating

Take action now to protect life and property

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northwesterly 10 to 15 knots tending northwest to northeasterly 15 to 20 knots in the middle of the day then tending southerly 20 to 30 knots in the late evening. Winds may reach up to 35 knots at times in the late evening.
Seas
Around 1 metre, increasing to 1.5 to 2 metres during the afternoon.
Weather
Mostly sunny.
Weather Situation
North to northeasterly winds along Sydney Local Waters will continue to freshen through this week as a high over the Tasman Sea strengthens. A cold front and its associated trough is expected to bring a sharp and gusty southerly change to Sydney later today. Fresh to strong southerlies are forecast to continue through Sunday and gradually moderate and shift east in the new week as a high pressure system settles over the Tasman Sea.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Johnstons Bay Temperature Statistics View More

January Temperature

Sydney (Observatory Hill) (1km)

  • Lowest 2 January, 2026

    17.3 °C

  • Average January

    22.8 °C

  • Highest 8 January, 2026

    33.2 °C

Climate (2021–Present)

Sydney (Observatory Hill) (1km)

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  • Average Low 2021–2026

    14.7 °C

  • Average 2021–2026

    18.3 °C

  • Average High 2021–2026

    23.5 °C
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