Sydney Harbour Entrance Weather Forecast
- 22
- 27
Partly cloudy
- 23
- 27
Showers. Possible storm
- 21
- 24
Showers
- 21
- 24
Shower or two
- 20
- 26
Partly cloudy
- 20
- 28
Mostly sunny
- 21
- 27
Possible shower
Today 6 Mar Sydney
Partly cloudy. The chance of fog early this morning, mainly in the west. Medium chance of showers, most likely during this afternoon and early evening. The chance of a thunderstorm during this afternoon and evening, possibly severe with heavy rain which may lead to flash flooding in the outer west. Light winds becoming southeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- North to northeasterly below 10 knots becoming east to southeasterly in the early morning.
- Seas
- Below 0.5 metres.
- Weather
- Partly cloudy. The chance of a thunderstorm during this afternoon and evening.
- Weather Situation
- A high pressure system over the Tasman Sea extends a ridge to the state's northeast, maintaining fresh northeasterly airstream over Sydney Waters. A trough is forecast to brush the south coast today and weakens. This trough will strengthen again during the weekend and heads northward, crossing Sydney Waters late Saturday or early Sunday with a fresh southerly wind change in its wake, as a second high pressure system passing to the south enters the Tasman Sea.
Sydney Harbour Entrance Temperature Statistics View More
March Temperature
Sydney (Observatory Hill) (6km)
Lowest 1 March, 2026
20.1 °CAverage March
23.3 °CHighest 4 March, 2026
28.5 °C
Climate (2021–Present)
Sydney (Observatory Hill) (6km)
Average Low 2021–2026
14.7 °CAverage 2021–2026
18.3 °CAverage High 2021–2026
23.5 °C