Simpsons Bay Weather Forecast

    • 13
    • 24

    Clear

    • 17
    • 26

    Mostly sunny

    • 17
    • 22

    Sunny

    • 13
    • 20

    Partly cloudy

    • 14
    • 25

    Late shower or two

    • 17
    • 22

    Shower or two then sunny

    • 12
    • 21

    Mostly sunny

Today 15 Sep Sydney

Sunny. Light winds becoming northwesterly 15 to 20 km/h in the middle of the day then becoming light in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Northerly 10 to 15 knots, reaching up to 20 knots offshore in the evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres offshore.
1st Swell
Southerly below 1 metre.
Weather
Clear.
Weather Situation
Northerly winds are strengthening as a high pressure system over the Tasman Sea moves further away while a cold front approaches from the west. This front and its associated trough will bring a west to southwesterly change to southern and central coastal waters later Tuesday through Wednesday, before the front moves away to the Tasman Sea and the trough weakens over the northern coastal waters. Then, a ridge of high pressure will drift across the coastal waters midweek ahead of the second cold front that looks set to cross the coast on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Simpsons Bay Temperature Statistics View More

September Temperature

Sydney Airport (15km)

  • Lowest 1 September, 2025

    9 °C

  • Average September

    16.7 °C

  • Highest 8 September, 2025

    30.1 °C

Climate (2020–Present)

Sydney Airport (15km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    18.6 °C

  • Average High 2020–2025

    23.3 °C
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