Gannons Bay Weather Forecast
- 17
- 21
Partly cloudy
- 15
- 21
Shower or two
- 15
- 22
Mostly sunny
- 14
- 22
Sunny
- 17
- 23
Partly cloudy
- 18
- 25
Shower or two
- 19
- 26
Shower or two
Today 26 Oct Sydney
Partly cloudy. Slight chance of a shower, most likely at night. Winds southerly 20 to 30 km/h tending southeasterly in the middle of the day then becoming light in the late evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- Southerly 15 to 20 knots turning southeasterly in the late afternoon.
- Seas
- 1 to 1.5 metres.
- 1st Swell
- Southerly 2 to 2.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A cold front and its associated trough are crossing the northern coastal waters today, with a fresh, gusty southerly wind change in the wake. Winds will turn east to northeasterly along the northern and central parts of the coast on Tuesday as a weak trough forms near the coast. This trough will then deepen to a low pressure system near the central parts of the coast late Tuesday before quickly moving offshore. This will be followed by a high pressure ridge building across the state, which will become the dominant feature over the coastal waters mid to late this week until the next trough brushes the coast on the weekend.
Gannons Bay Temperature Statistics View More
October Temperature
Sydney Airport (14 km)
Lowest 15 October, 2026
10.8 °CAverage October
19.5 °CHighest 12 October, 2026
35.6 °C
Climate (2021–2026)
Sydney Airport (14 km)
Average Low 2021–2026
15 °CAverage 2021–2026
18.8 °CAverage High 2021–2026
23.5 °C