Boat Harbour Beach Weather Forecast
- 20
- 24
Possible late shower
- 19
- 21
Showers. Possible storm
- 19
- 21
Showers
- 18
- 27
Shower or two
- 19
- 27
Mostly sunny
- 20
- 23
Shower or two
- 18
- 21
Cloudy
Today 10 Dec Sydney
Partly cloudy. Slight chance of a shower this evening. The chance of a thunderstorm this evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the outer west. Winds southerly 15 to 20 km/h turning east to southeasterly in the late morning then tending south to southeasterly 15 to 25 km/h in the evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- South to southeasterly 15 to 20 knots becoming variable about 10 knots in the late afternoon then becoming south to southeasterly 10 to 15 knots in the late evening.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre around midday.
- 1st Swell
- Southerly around 1 metre.
- Weather
- Partly cloudy. 60% chance of showers. The chance of a thunderstorm this evening.
- Weather Situation
- A trough moves up southern and central parts of the coast today, bringing a fresh southerly change with it, before anchoring about the Hunter or Sydney coast, and weakening later in the week. High pressure will build in the Tasman Sea later in the week, bringing east to northeasterly winds to coastal waters, turning northerly over the weekend.
Boat Harbour Beach Temperature Statistics View More
December Temperature
Sydney Airport (10km)
Lowest 2 December, 2025
13.4 °CAverage December
23.2 °CHighest 6 December, 2025
39.2 °C
Climate (2020–Present)
Sydney Airport (10km)
Average Low 2020–2025
14.8 °CAverage 2020–2025
18.6 °CAverage High 2020–2025
23.3 °C