Marley Head Weather Forecast
- 22
- 27
Possible shower
- 21
- 31
Possible shower or storm
- 23
- 30
Possible shower
- 20
- 28
Shower or two
- 19
- 27
Partly cloudy
- 19
- 23
Shower or two
- 18
- 23
Cloudy
Today 20 Dec Sydney
Partly cloudy. Medium chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the afternoon and early evening. Light winds becoming east to northeasterly 15 to 20 km/h in the middle of the day then becoming light in the evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- South to southwesterly 10 to 15 knots shifting north to northeasterly in the morning. Winds reaching up to 20 knots south of Port Kembla during the afternoon and evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres south of Port Kembla during the afternoon.
- 1st Swell
- Northeasterly around 1 metre.
- Weather
- Partly cloudy. 60% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Marley Head Temperature Statistics View More
December Temperature
Sydney Airport (18km)
Lowest 2 December, 2025
13.4 °CAverage December
23 °CHighest 6 December, 2025
39.2 °C
Climate (2020–Present)
Sydney Airport (18km)
Average Low 2020–2025
14.8 °CAverage 2020–2025
18.6 °CAverage High 2020–2025
23.3 °C