Boat Harbour Weather Forecast
- 17
- 33
Possible late shower
- 15
- 21
Cloudy
- 15
- 23
Cloudy
- 15
- 27
Mostly sunny
- 15
- 32
Sunny
- 18
- 32
Sunny morning. Shower or two
- 18
- 30
Shower or two
Today 14 Dec Illawarra
Partly cloudy. Medium chance of showers in the evening. Winds westerly 25 to 40 km/h shifting south to southeasterly 30 to 45 km/h in the evening. Daytime maximum temperatures 27 to 32.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Northerly 15 to 20 knots shifting southerly 15 to 25 knots in the evening. Winds reaching up to 30 knots in the evening.
- Seas
- Around 1 metre, increasing to 1.5 to 2 metres south of Port Kembla by early evening.
- 1st Swell
- Northeasterly 1 to 1.5 metres, decreasing below 1 metre by early evening.
- Weather
- Mostly sunny.
- 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.
Boat Harbour Temperature Statistics View More
December Temperature
Point Perpendicular (2km)
Lowest 2 December, 2025
10.3 °CAverage December
20 °CHighest 5 December, 2025
33 °C
Climate (2020–Present)
Point Perpendicular (2km)
Average Low 2020–2025
14.7 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
20.7 °C