Flat Rock Beach Weather Forecast
- 18
- 27
Clear
- 17
- 29
Sunny
- 20
- 31
Sunny
- 21
- 33
Sunny
- 22
- 34
Mostly sunny
- 22
- 32
Shower or two
- 21
- 28
Shower or two
Today 18 Dec Northern Rivers
Mostly sunny. Light winds becoming east to northeasterly 15 to 20 km/h in the early afternoon then becoming light in the late evening. Daytime maximum temperatures around 30.
Byron Coastal Waters
Point Danger to Wooli- Wind
- Variable below 10 knots becoming northeasterly 10 to 15 knots in the middle of the day.
- Seas
- Below 1 metre, increasing to around 1 metre south of Cape Byron.
- 1st Swell
- Southerly around 1 metre.
- Weather
- Partly cloudy.
- 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.
Flat Rock Beach Temperature Statistics View More
December Temperature
Ballina Airport (4km)
Lowest 3 December, 2025
14.2 °CAverage December
22.9 °CHighest 14 December, 2025
31.2 °C
Climate (2020–Present)
Ballina Airport (4km)
Average Low 2020–2025
15.1 °CAverage 2020–2025
19.6 °CAverage High 2020–2025
24.6 °C