Big Marley Beach Weather Forecast
- 21
- 25
Shower or two
- 21
- 25
Shower or two
- 21
- 25
Shower or two
- 21
- 25
Shower or two
- 21
- 25
Partly cloudy
- 19
- 27
Shower or two
- 16
- 21
Shower or two
Today 21 Mar Sydney
Partly cloudy. Medium chance of showers. The chance of a thunderstorm early this evening. Thunderstorms possibly severe with large hail and heavy rain which may lead to flash flooding early this evening. Winds southeasterly 15 to 20 km/h becoming light in the evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Southeasterly about 10 knots increasing to 10 to 15 knots in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southerly below 1 metre.
- Weather
- Partly cloudy. The chance of a thunderstorm.
- Weather Situation
- A weak ridge of high pressure is expected to maintain light to moderate winds from the northeast to southeast during the weekend, with periods of unsettled weather possible. Winds tend north to northeasterly across the southern coastal waters early next week, with fresher south to southeasterlies possible along the northern coastal waters associated with a low in the southern Coral Sea.
Big Marley Beach Temperature Statistics View More
March Temperature
Sydney Airport (19km)
Lowest 15 March, 2026
16.5 °CAverage March
23.1 °CHighest 17 March, 2026
30.5 °C
Climate (2021–Present)
Sydney Airport (19km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
18.7 °CAverage High 2021–2026
23.4 °C