Chinamans Island Weather Forecast
- 15
- 26
Possible shower or storm
- 17
- 31
Becoming windy. Mostly sunny
- 15
- 19
Cloudy
- 15
- 19
Cloudy
- 13
- 24
Sunny
- 15
- 29
Sunny
- 17
- 30
Partly cloudy
Today 13 Dec South Coast
Partly cloudy. The chance of fog in the early morning. Medium chance of showers in the afternoon and evening. The chance of a thunderstorm in the morning and afternoon. Winds north to northwesterly 15 to 20 km/h tending north to northeasterly in the morning then becoming light in the early afternoon. Overnight temperatures falling to between 11 and 15 with daytime temperatures reaching 25 to 30.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- North to northwesterly about 10 knots tending north to northeasterly 15 to 20 knots in the morning then tending north to northwesterly 10 to 15 knots in the late evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres around midday.
- 1st Swell
- Easterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
- Weather
- Partly cloudy. 50% chance of showers. The chance of a thunderstorm during this afternoon and evening.
- Weather Situation
- Northeasterly winds are being generated by a coastal trough along the north coast and a ridge of high pressure extending across the south. A cold front is forecast to move up the coast as a southerly change late Sunday into Monday behind which a new ridge of high pressure settled is forecast to settle bringing southeasterly winds through mid week.
Chinamans Island Temperature Statistics View More
December Temperature
Ulladulla (11km)
Lowest 2 December, 2025
9.7 °CAverage December
19.3 °CHighest 6 December, 2025
37.1 °C
Climate (2020–Present)
Ulladulla (11km)
Average Low 2020–2025
13.8 °CAverage 2020–2025
17 °CAverage High 2020–2025
20.8 °C