Shag Rock Weather Forecast
- 20
- 28
Possible shower or storm
- 20
- 29
Becoming cloudy
- 21
- 25
Shower or two
- 19
- 25
Cloudy
- 18
- 26
Partly cloudy
- 16
- 28
Mostly sunny
- 18
- 29
Partly cloudy
Today 14 Dec Northern Rivers
Partly cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. A thunderstorm likely in the afternoon and early evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Light winds becoming northerly 15 to 20 km/h in the late afternoon then becoming light in the evening. Daytime maximum temperatures around 30.
Byron Coastal Waters
Point Danger to Wooli- Wind
- Northerly 15 to 20 knots, reaching up to 25 knots offshore south of Yamba in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore south of Yamba by early evening.
- 1st Swell
- Easterly around 1 metre.
- Weather
- Partly cloudy. The chance of a thunderstorm in the afternoon and early evening.
- Weather Situation
- A trough and gusty wind change will move north across the coastal waters from Sunday afternoon, crossing the northern waters on Monday morning. A ridge will extend over the coastal waters in the wake of the trough, maintained by a high that will move east across southeast Australia on Tuesday.
Shag Rock Temperature Statistics View More
December Temperature
Ballina Airport (5km)
Lowest 3 December, 2025
14.2 °CAverage December
22.6 °CHighest 7 December, 2025
30.2 °C
Climate (2020–Present)
Ballina Airport (5km)
Average Low 2020–2025
15.1 °CAverage 2020–2025
19.6 °CAverage High 2020–2025
24.6 °C