James Cook Island Weather Forecast

    • 23
    • 39

    Cloudy

    • 19
    • 24

    Possible shower. Windy

    • 18
    • 24

    Cloudy

    • 20
    • 30

    Mostly sunny

    • 20
    • 24

    Possible shower

    • 19
    • 21

    Shower or two

    • 18
    • 23

    Shower or two

Today 6 Dec Sydney

Cloudy. Slight chance of a shower. The chance of smoke haze. The chance of a thunderstorm, possibly severe with damaging winds. Winds west to northwesterly 20 to 30 km/h tending north to northwesterly in the evening then tending west to northwesterly 15 to 20 km/h in the late evening.

Extreme Fire Danger Rating

Take action now to protect life and property

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northerly 10 to 15 knots increasing to 15 to 25 knots in the late afternoon then becoming variable about 10 knots in the late evening. Winds may reach up to 30 knots at times.
Seas
Below 0.5 metres.
Weather
Cloudy. The chance of a thunderstorm.
Weather Situation
A strong cold front crossing the state from the west is bringing strong northeasterly winds ahead of it for Sydney waters. This front will bring a strong southerly change to Sydney waters tomorrow, before winds tend northeasterly Monday as ridge builds along the coast in the wake of the front. Another cold front will brush southern and central parts of the coast Tuesday and Wednesday bringing a southerly change to Sydney waters midweek.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

James Cook Island Temperature Statistics View More

December Temperature

Sydney Airport (9km)

  • Lowest 2 December, 2025

    13.4 °C

  • Average December

    21.8 °C

  • Highest 4 December, 2025

    32.5 °C

Climate (2020–Present)

Sydney Airport (9km)

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  • Average Low 2020–2025

    14.8 °C

  • Average 2020–2025

    18.6 °C

  • Average High 2020–2025

    23.3 °C
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