Macquarie Lighthouse Weather Forecast
- 18
- 24
Shower or two
- 19
- 29
Showers. Becoming very windy
- 18
- 20
Possible shower
- 18
- 20
Cloudy
- 19
- 23
Partly cloudy
- 18
- 27
Sunny
- 19
- 30
Sunny
Today 13 Dec Sydney
Partly cloudy. Medium chance of showers, most likely in the evening. The chance of a thunderstorm, possibly severe with heavy rain which may lead to flash flooding in the outer west. Winds east to northeasterly 15 to 25 km/h becoming light in the late evening.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- Northeasterly 15 to 20 knots becoming variable about 10 knots in the evening.
- Seas
- Below 0.5 metres.
- Weather
- Partly cloudy. 50% chance of showers. The chance of a thunderstorm.
- Weather Situation
- A trough lies in the state's far west and a high pressure system lies over the Tasman Sea, maintaining north to northeasterly airstream. The trough will become mobile tonight and enter the far south coast Sunday morning as a cold front passes to the south. Then, the system will cross Sydney Waters on Sunday evening, bringing a fresh to strong southerly wind change in its wake. Southerly winds will gradually ease and turn east to southeasterly early next week as a new high enters the Bight and extends a ridge across the coastal waters.
Macquarie Lighthouse Temperature Statistics View More
December Temperature
Sydney (Observatory Hill) (7km)
Lowest 2 December, 2025
13.3 °CAverage December
22.3 °CHighest 5 December, 2025
37.8 °C
Climate (2020–Present)
Sydney (Observatory Hill) (7km)
Average Low 2020–2025
14.7 °CAverage 2020–2025
18.3 °CAverage High 2020–2025
23.4 °C