Mort Bay Weather Forecast

    • 15
    • 22

    Morning drizzle

    • 17
    • 23

    Shower or two

    • 16
    • 22

    Showers

    • 16
    • 22

    Showers

    • 15
    • 23

    Shower or two

    • 14
    • 23

    Shower or two

    • 13
    • 23

    Shower or two

Today 11 May Sydney

Partly cloudy. The chance of smoke haze in the west in the morning. High chance of drizzle in the morning, tending to light showers in the afternoon. Light winds becoming south to southeasterly 15 to 20 km/h in the middle of the day then becoming light in the late evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
South to southwesterly 10 to 15 knots turning southeasterly in the afternoon.
Seas
Below 0.5 metres.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A high pressure system near the Bight extends a ridge across New South Wales. This high will gradually move east, reaching the Tasman Sea on Tuesday. Little change to this pattern is expected for the remainder of the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mort Bay Temperature Statistics View More

May Temperature

Sydney (Observatory Hill) (1km)

  • Lowest 8 May, 2026

    9.9 °C

  • Average May

    17.6 °C

  • Highest 3 May, 2026

    25.9 °C

Climate (2021–Present)

Sydney (Observatory Hill) (1km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    18.4 °C

  • Average High 2021–2026

    23.5 °C
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