Boat Harbour Beach Weather Forecast
- 12
- 17
Partly cloudy
- 13
- 18
Partly cloudy
- 12
- 20
Mostly sunny
- 14
- 22
Sunny
- 14
- 25
Sunny
- 17
- 27
Shower or two
- 14
- 18
Shower or two. Becoming windy
Today 10 Sep Sydney
Cloudy. Slight chance of a shower along the coastal fringe, becoming less likely in the late morning. Near zero chance of rain elsewhere. Winds south to southwesterly 15 to 25 km/h tending south to southeasterly 20 to 30 km/h in the middle of the day then becoming light in the evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- Southerly 15 to 20 knots, reaching up to 25 knots inshore early in the morning.
- Seas
- 2 metres, decreasing to 1 to 1.5 metres during the morning.
- 1st Swell
- Southerly 2.5 to 3 metres.
- Weather
- Cloudy. 60% chance of showers.
- Caution
- Surf conditions in the afternoon and evening may be more powerful than they appear and are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
- Weather Situation
- A trough will move away from the New South Wales coast today, with fresh to strong southerly winds extending along the coast in its wake. Winds will ease and shift south to southeasterly later in the week as another high pressure ridge extends over the region. A high pressure system will then move into the Tasman Sea over the weekend, directing east to northeasterly winds along the coast.
Boat Harbour Beach Temperature Statistics View More
September Temperature
Sydney Airport (10km)
Lowest 9 September, 2026
10 °CAverage September
18.7 °CHighest 5 September, 2026
32.4 °C
Climate (2021–2026)
Sydney Airport (10km)
Average Low 2021–2026
15 °CAverage 2021–2026
18.8 °CAverage High 2021–2026
23.5 °C