North Harbour Entrance Weather Forecast

    • 17
    • 25

    Partly cloudy

    • 17
    • 29

    Becoming windy. Partly cloudy

    • 15
    • 17

    Showers

    • 14
    • 18

    Possible shower

    • 14
    • 19

    Partly cloudy

    • 13
    • 23

    Sunny

    • 15
    • 26

    Sunny

Today 25 Sep Sydney

Partly cloudy. The chance of a thunderstorm in the afternoon and evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the west. Winds northeasterly 15 to 25 km/h becoming light in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northeasterly 15 to 20 knots tending northerly 10 to 15 knots in the evening then decreasing to below 10 knots in the late evening.
Seas
Below 0.5 metres.
Weather
Mostly clear. The chance of a thunderstorm early this evening.
Weather Situation
A high pressure system over the Tasman Sea directs a north to northeasterly flow through the Sydney Waters. A cold front and trough will enter the Tasman Sea during the weekend, bringing a southerly change that will pass through the Sydney Waters on Saturday night. A high pressure centre will then move across Tasmania early next week, with winds over the NSW coast tending southeasterly in response.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

North Harbour Entrance Temperature Statistics View More

September Temperature

Sydney (Observatory Hill) (8km)

  • Lowest 18 September, 2026

    9.4 °C

  • Average September

    17.6 °C

  • Highest 21 September, 2026

    32.7 °C

Climate (2021–2026)

Sydney (Observatory Hill) (8km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    18.5 °C

  • Average High 2021–2026

    23.6 °C
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