Montague Island Weather Forecast
- 11
- 18
Shower or two
- 9
- 17
Cloud clearing
- 9
- 16
Partly cloudy
- 9
- 18
Partly cloudy
- 7
- 20
Sunny
- 8
- 23
Sunny
- 8
- 23
Mostly sunny
Today 7 Sep South Coast
Partly cloudy. High chance of showers, becoming less likely in the late afternoon and evening. Winds south to southwesterly 15 to 25 km/h. Daytime maximum temperatures between 14 and 20.
Batemans Coastal Waters
Ulladulla to Montague Island- Wind
- Variable below 10 knots becoming southerly 15 to 25 knots in the middle of the day. Winds reaching up to 30 knots in the evening.
- Seas
- Below 1 metre, increasing to 1 to 2 metres during the afternoon, then increasing to 2 to 3 metres by early evening.
- 1st Swell
- Southerly 2 metres, decreasing to 1 to 1.5 metres around midday.
- Weather
- Partly cloudy. 80% chance of showers.
- Weather Situation
- A broad high pressure ridge continues to build from the west while a trough lingers over the far northeast of the state. A weak cold front is forecast to cross the far southeast of the state this morning, bringing a gusty southerly change up the NSW coast, followed by another cold front and southerly change mid-week.
Montague Island Temperature Statistics View More
September Temperature
Montague Island Lighthouse (0km)
Lowest 1 September, 2026
12.4 °CAverage September
17.6 °CHighest 5 September, 2026
26 °C
Climate (2021–2026)
Montague Island Lighthouse (0km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
20 °C