Flat Rock Island Weather Forecast
- 11
- 26
Mostly sunny
- 15
- 25
Showers
- 14
- 22
Morning shower or two
- 13
- 25
Partly cloudy
- 13
- 28
Possible storm
- 17
- 31
Shower or two
- 18
- 28
Shower or two
Today 30 Dec Batemans Bay
Mostly sunny. Winds easterly 15 to 20 km/h becoming light in the evening.
Batemans Coastal Waters
Ulladulla to Montague Island- Wind
- Northeasterly 10 to 15 knots decreasing to about 10 knots in the late afternoon.
- Seas
- Below 1 metre.
- 1st Swell
- Southeasterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
- Weather
- Mostly sunny.
- 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.
Flat Rock Island Temperature Statistics View More
December Temperature
Moruya Airport (27km)
Lowest 2 December, 2025
6.3 °CAverage December
18.6 °CHighest 14 December, 2025
34 °C
Climate (2020–Present)
Moruya Airport (27km)
Average Low 2020–2025
11 °CAverage 2020–2025
15.9 °CAverage High 2020–2025
21.5 °C