Gymea Bay Weather Forecast
- 13
- 20
Clear
- 13
- 21
Mostly sunny
- 16
- 21
Shower or two
- 17
- 21
Shower or two
- 17
- 21
Showers
- 16
- 21
Showers
- 15
- 21
Showers easing
Today 9 May Sydney
Clear. Winds south to southeasterly 15 to 20 km/h becoming light in the evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- Southerly 10 to 15 knots, reaching up to 20 knots offshore in the late afternoon.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre later in the evening.
- 1st Swell
- Southerly 2 metres inshore, increasing to 2 to 3 metres offshore.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure system near the Bight extends a ridge across New South Wales. This ridge will be the dominant feature for the coming week as the centre of the high gradually moves east, reaching the Tasman Sea on Tuesday.
Gymea Bay Temperature Statistics View More
May Temperature
Sydney Airport (13km)
Lowest 8 May, 2026
9.6 °CAverage May
18.1 °CHighest 3 May, 2026
25.6 °C
Climate (2021–Present)
Sydney Airport (13km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
18.7 °CAverage High 2021–2026
23.4 °C