Three Brothers Rocks Weather Forecast
- 18
- 33
Windy. Partly cloudy
- 14
- 22
Partly cloudy
- 13
- 26
Mostly sunny
- 15
- 29
Mostly sunny
- 14
- 23
Possible shower developing
- 14
- 21
Cloudy
- 12
- 23
Possible shower
Today 6 Dec South Coast
Partly cloudy. Medium chance of showers near the Victorian border, slight chance elsewhere. The chance of a thunderstorm during this afternoon and evening. Damaging winds possible. Winds northwesterly 15 to 25 km/h tending northwest to northeasterly in the morning then tending northwest to southwesterly 25 to 35 km/h in the middle of the day. Daytime maximum temperatures 29 to 36.
Eden Coastal Waters
Montague Island to Gabo Island- Wind
- North to northwesterly 15 to 20 knots tending northeast to southeasterly 10 to 15 knots in the morning then tending southeast to southwesterly 15 to 20 knots in the early afternoon.
- Seas
- 1 to 2 metres, decreasing below 1 metre around midday.
- 1st Swell
- Northeasterly 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning.
- Weather
- Partly cloudy. The chance of a thunderstorm during this afternoon and evening.
- Weather Situation
- A high pressure system lies over the Tasman Sea, extending a ridge over the state. Strong northerly winds today before a cold front reaches southern coastal waters late this evening, bringing a fresh to strong southerly wind change over coastal waters in its wake into Sunday.
Three Brothers Rocks Temperature Statistics View More
December Temperature
Montague Island Lighthouse (27km)
Lowest 2 December, 2025
12.3 °CAverage December
17.6 °CHighest 4 December, 2025
23.7 °C
Climate (2020–Present)
Montague Island Lighthouse (27km)
Average Low 2020–2025
14.7 °CAverage 2020–2025
17 °CAverage High 2020–2025
19.9 °C