Dark Bay Weather Forecast
- 11
- 16
Windy. Partly cloudy
- 11
- 17
Partly cloudy
- 11
- 22
Sunny
- 15
- 26
Sunny
- 15
- 27
Sunny
- 18
- 23
Possible shower
- 15
- 20
Shower or two
Today 16 Sep Sydney
Mostly clear. Winds southerly 30 to 45 km/h decreasing to 15 to 25 km/h in the late evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- Southerly 25 to 30 knots.
- Seas
- 3 metres.
- 1st Swell
- Southerly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.
- Weather
- Cloudy. 70% chance of showers.
- Caution
- Large and powerful surf conditions for the rest of the day are expected, particularly for south facing beaches. These conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
- Weather Situation
- A strong high over the Great Australian Bight is moving east in the wake of a trough in the Tasman Sea, directing strong and blustery southerly winds over the coastal waters. The winds will ease from Thursday as the high moves across the state later in the week and into the weekend.
Dark Bay Temperature Statistics View More
September Temperature
Sydney Airport (14km)
Lowest 9 September, 2026
10 °CAverage September
18.1 °CHighest 5 September, 2026
32.4 °C
Climate (2021–2026)
Sydney Airport (14km)
Average Low 2021–2026
15 °CAverage 2021–2026
18.8 °CAverage High 2021–2026
23.5 °C