Montagu Roadstead Weather Forecast
- 13
- 18
Shower or two
- 11
- 18
Partly cloudy
- 7
- 19
Partly cloudy
- 8
- 19
Partly cloudy
- 8
- 20
Sunny
- 8
- 21
Mostly sunny
- 9
- 25
Sunny
Today 26 Aug Illawarra
Cloudy. High chance of showers. The chance of a thunderstorm in the morning and afternoon. Light winds becoming south to southeasterly 20 to 30 km/h in the morning then becoming light in the evening. Overnight temperatures falling to between 9 and 14 with daytime temperatures reaching between 13 and 18.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Northwest to southwesterly 15 to 20 knots tending southerly 15 to 25 knots in the early morning.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning.
- 1st Swell
- Southerly around 1 metre, increasing to 1 to 2 metres by early evening.
- Weather
- Partly cloudy. 80% chance of showers. The chance of a thunderstorm north of Port Kembla this morning.
- Weather Situation
- A trough near the south coast this morning is heading north and crossing the rest of the coastal waters during today, bringing a fresh southerly wind change in its wake. Winds will then ease later in the week as a high pressure ridge develops across the coastal waters.
Montagu Roadstead Temperature Statistics View More
August Temperature
Point Perpendicular (6km)
Lowest 8 August, 2026
7.7 °CAverage August
14.2 °CHighest 3 August, 2026
21.1 °C
Climate (2021–2026)
Point Perpendicular (6km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
20.8 °C