Fort Denison Weather Forecast

    • 21
    • 31

    Mostly sunny

    • 22
    • 30

    Showers developing. Smoke

    • 17
    • 24

    Cloudy

    • 19
    • 26

    Cloudy

    • 18
    • 29

    Sunny

    • 19
    • 31

    Partly cloudy

    • 21
    • 29

    Cloudy

Today 31 Jan Sydney

Partly cloudy. The chance of a thunderstorm in the outer west in the afternoon and evening. The chance of smoke haze in the evening. Winds east to northeasterly 15 to 25 km/h.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northeasterly 15 to 20 knots.
Seas
Below 0.5 metres.
Weather
Mostly sunny. Possible smoke with reduced visibility during the evening.
Weather Situation
A ridge extends from a high situated in the Tasman Sea, maintaining northeasterly winds. The ridge will weaken on Sunday ahead of a southerly change that will move north along the coast, reaching the Sydney local waters in the late morning.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Fort Denison Temperature Statistics View More

January Temperature

Sydney (Observatory Hill) (2km)

  • Lowest 21 January, 2026

    16.8 °C

  • Average January

    22.8 °C

  • Highest 10 January, 2026

    42.2 °C

Climate (2021–Present)

Sydney (Observatory Hill) (2km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    14.7 °C

  • Average 2021–2026

    18.3 °C

  • Average High 2021–2026

    23.5 °C
Get WillyWeather+ to remove ads