Castlecrag Marine Weather Forecast
- 17
- 29
Cloudy
- 20
- 27
Cloudy
- 20
- 27
Partly cloudy
- 16
- 24
Sunny
- 17
- 26
Sunny
- 17
- 28
Sunny
- 20
- 36
Possible shower
Today 21 Dec Sydney
Cloudy. Slight chance of a shower. The chance of a thunderstorm. Winds southeasterly 15 to 20 km/h.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- East to southeasterly about 10 knots increasing to 10 to 15 knots in the evening.
- Seas
- Below 0.5 metres.
- Weather
- Partly cloudy. The chance of a thunderstorm.
- Weather Situation
- A high pressure ridge extends across the coast, bringing generally settled weather. A cold front slips south of the state during today, bringing a south to southeasterly change during the afternoon, followed by a brief ridge. Another cold front is forecast to cross the Sydney Waters during Monday, bringing a gusty southerly change, with another ridge building in its wake bringing mostly settled conditions for Christmas.
Castlecrag Marine Temperature Statistics View More
December Temperature
Sydney (Observatory Hill) (6km)
Lowest 20 December, 2024
17.1 °CAverage December
23.1 °CHighest 2 December, 2024
33.3 °C
Climate (2019–Present)
Sydney (Observatory Hill) (6km)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
14.6 °CAverage 2019–2024
18.2 °CAverage High 2019–2024
23.3 °C