Cockatoo Island Weather Forecast
- 22
- 31
Mostly clear
- 22
- 32
Shower or two. Possible storm
- 23
- 29
Shower or two
- 21
- 29
Partly cloudy
- 21
- 30
Shower or two developing
- 20
- 25
Showers
- 19
- 25
Shower or two
Today 21 Feb Sydney
Partly cloudy. Slight chance of a shower. The chance of a thunderstorm, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the west. Winds southeasterly 15 to 25 km/h becoming light in the late evening.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- Southeasterly 10 to 15 knots turning southerly in the evening.
- Seas
- Below 0.5 metres.
- Weather
- Mostly clear. The chance of a thunderstorm.
- Weather Situation
- A southerly wind change reaches Sydney Waters today (Saturday) as a weak trough moves through and decays. Winds turn fresh north to northwesterly by Sunday as a high builds over the Tasman, ahead of another southerly change reaching Sydney Waters on Monday with the next trough. Winds briefly turn northerly before another trough brings a southerly change midweek.
Cockatoo Island Temperature Statistics View More
February Temperature
Sydney (Observatory Hill) (3km)
Lowest 3 February, 2026
16 °CAverage February
22.8 °CHighest 18 February, 2026
36.6 °C
Climate (2021–Present)
Sydney (Observatory Hill) (3km)
Average Low 2021–2026
14.7 °CAverage 2021–2026
18.3 °CAverage High 2021–2026
23.5 °C