Newport Beach Weather Forecast
- 17
- 28
Sunny
- 19
- 26
Shower or two developing
- 15
- 17
Shower or two
- 15
- 21
Shower or two
- 16
- 22
Partly cloudy
- 16
- 24
Sunny
- 17
- 26
Mostly sunny
Today 20 Sep Sydney
Sunny. Light winds becoming northwest to northeasterly 15 to 20 km/h in the middle of the day then tending west to northwesterly 15 to 25 km/h in the early afternoon.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- Variable below 10 knots becoming east to northeasterly 10 to 15 knots in the middle of the day then shifting west to northwesterly below 10 knots in the evening.
- Seas
- Below 0.5 metres.
- Weather
- Sunny.
- Weather Situation
- A high pressure system over the Tasman Sea directs a northwesterly flow over the waters ahead of a fresh and gusty southerly change reaching the Sydney Waters by early Monday. Winds are forecast to turn southeasterly as a new high pressure system slips south of the state during early to mid next week.
Newport Beach Temperature Statistics View More
September Temperature
Terrey Hills (10km)
Lowest 10 September, 2026
8.1 °CAverage September
15.9 °CHighest 5 September, 2026
30.8 °C
Climate (2021–2026)
Terrey Hills (10km)
Average Low 2021–2026
13.6 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
22 °C