Monument Beach Weather Forecast
- 13
- 21
Partly cloudy
- 13
- 22
Mostly sunny
- 15
- 22
Shower or two
- 16
- 20
Possible shower
- 15
- 22
Partly cloudy
- 16
- 25
Mostly sunny
- 18
- 27
Possible shower
Today 29 Dec South Coast
Clear. Light winds.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- East to southeasterly about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southeasterly 1.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- South to southeasterly winds are gradually turning east to northeast as a high pressure ridge over the coastal waters is weakening. Then a trough will brush the coastal waters midweek, bringing a surge of fresh southerly winds along the coast, and this will be followed by another ridge extending from a high passing to the south of the state.
Monument Beach Temperature Statistics View More
December Temperature
Ulladulla (15km)
Lowest 2 December, 2025
9.7 °CAverage December
19.5 °CHighest 6 December, 2025
37.1 °C
Climate (2020–Present)
Ulladulla (15km)
Average Low 2020–2025
13.7 °CAverage 2020–2025
17 °CAverage High 2020–2025
20.8 °C