Mollymook Beach Weather Forecast
- 19
- 30
Possible late shower
- 19
- 30
Showers. Possible storm
- 18
- 30
Shower or two. Possible storm
- 20
- 25
Partly cloudy
- 17
- 26
Shower or two
- 15
- 27
Sunny day. Late shower or two
- 15
- 21
Shower or two
Today 19 Dec South Coast
Mostly sunny morning. Medium chance of showers, most likely in the evening. The chance of a thunderstorm in the afternoon and early evening. Light winds becoming east to southeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening. Daytime maximum temperatures 30 to 35.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- North to northwesterly 10 to 15 knots, reaching up to 20 knots offshore north of Port Kembla early in the morning. Winds tending northwest to southwesterly in the early morning then tending southeast to southwesterly in the morning.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre during the morning.
- 1st Swell
- Northeasterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to around 1 metre during the afternoon.
- Weather
- Mostly sunny. The chance of a thunderstorm inshore during this afternoon and early evening.
- Weather Situation
- A high in the Tasman Sea is directing northerly winds over Coastal Waters. Later today or Friday a weak trough will bring a brief southerly change to much of the coast before winds turn northerly again over the weekend. Following this, a cold front will bring a fresh to strong southerly change later on Sunday or Monday.
Mollymook Beach Temperature Statistics View More
December Temperature
Ulladulla (3km)
Lowest 2 December, 2025
9.7 °CAverage December
19.3 °CHighest 6 December, 2025
37.1 °C
Climate (2020–Present)
Ulladulla (3km)
Average Low 2020–2025
13.7 °CAverage 2020–2025
17 °CAverage High 2020–2025
20.8 °C