Gannons Bay Weather Forecast
- 18
- 24
Shower or two. Possible storm
- 21
- 30
Cloud clearing
- 20
- 25
Partly cloudy
- 16
- 23
Sunny
- 17
- 26
Sunny
- 18
- 25
Becoming cloudy
- 17
- 20
Shower or two
Today 15 Nov Sydney
Partly cloudy. High chance of showers, most likely during this afternoon and early evening. A thunderstorm likely during this afternoon and evening, possibly severe in the outer west with damaging winds and large hail. Light winds becoming northeasterly 25 to 35 km/h in the middle of the day then tending northerly 15 to 20 km/h in the late evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- Northeasterly 15 to 20 knots increasing to 20 to 25 knots in the early afternoon. Winds reaching up to 30 knots offshore in the evening.
- Seas
- Around 1 metre, increasing to 1.5 to 2 metres during the afternoon.
- 1st Swell
- Southerly around 1 metre.
- Weather
- Partly cloudy. 50% chance of showers. The chance of a thunderstorm during this afternoon and evening.
- Weather Situation
- A stalled trough about the Hunter is driving northerly winds to the north and east to southeasterly winds to the south of it. Winds are forecast to turn north to northwesterly ahead of a series of trough approaching the coast during Saturday and Sunday. On Monday a cold front moving up the coast will bring a southerly change, likely to reach the northern border during Monday afternoon. Behind this a high pressure ridge is forecast to lie over the coast mid week next week bringing clear conditions and light winds.
Gannons Bay Temperature Statistics View More
November Temperature
Sydney Airport (14km)
Lowest 12 November, 2025
11 °CAverage November
20.2 °CHighest 8 November, 2025
32.4 °C
Climate (2020–Present)
Sydney Airport (14km)
Average Low 2020–2025
14.8 °CAverage 2020–2025
18.6 °CAverage High 2020–2025
23.3 °C