Boat Harbour Beach Weather Forecast

    • 16
    • 33

    Windy. Mostly sunny

    • 15
    • 22

    Sunny

    • 14
    • 20

    Shower or two

    • 14
    • 18

    Partly cloudy

    • 12
    • 19

    Possible shower

    • 13
    • 17

    Partly cloudy

    • 12
    • 19

    Mostly sunny

Today 5 Sep Sydney

Sunny morning. Slight chance of a shower in the late afternoon and evening. Winds north to northwesterly 25 to 40 km/h increasing to 50 km/h before turning westerly 15 to 25 km/h in the evening.

Extreme Fire Danger Rating

Take action now to protect life and property

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
North to northwesterly 10 to 15 knots becoming northerly 15 to 25 knots in the morning then turning west to northwesterly 15 to 20 knots in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday.
1st Swell
Southerly around 1 metre.
Weather
Mostly sunny day. The chance of a thunderstorm this evening.
Weather Situation
North to northwesterly winds over Coastal Waters ahead of a vigorous cold front crossing the waters late today into Sunday. Winds turning westerly in behind the front before tending southwesterly to southerly as a high pressure ridge begins to form over the NSW coast. The ridge will persist into the new week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boat Harbour Beach Temperature Statistics View More

September Temperature

Sydney Airport (10km)

  • Lowest 1 September, 2026

    11.5 °C

  • Average September

    20.2 °C

  • Highest 2 September, 2026

    28.9 °C

Climate (2021–2026)

Sydney Airport (10km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    18.8 °C

  • Average High 2021–2026

    23.5 °C
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