Greenfield Gully Entrance Weather Forecast
- 18
- 30
Shower or two. Possible storm
- 21
- 29
Becoming cloudy
- 17
- 28
Possible shower
- 15
- 31
Sunny day. Late shower or two
- 15
- 22
Shower or two
- 13
- 23
Partly cloudy
- 13
- 25
Mostly sunny
Today 21 Dec Illawarra
Partly cloudy. High chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds northwest to northeasterly 15 to 20 km/h tending west to northwesterly 15 to 25 km/h in the late afternoon. Daytime maximum temperatures 30 to 36.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- East to northeasterly 10 to 15 knots, reaching up to 20 knots offshore north of Port Kembla during the afternoon and evening. Winds tending north to northeasterly in the evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres offshore north of Port Kembla by early evening.
- 1st Swell
- Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Port Kembla.
- Weather
- Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the afternoon and early evening.
- Weather Situation
- A high in the Tasman Sea is directing northerly winds over central and northern Coastal Waters while a weak coastal trough brings southerly winds to the remainder. A cold front will bring a fresh to strong southerly change to the southern half on Monday.
Greenfield Gully Entrance Temperature Statistics View More
December Temperature
Point Perpendicular (10km)
Lowest 2 December, 2025
10.3 °CAverage December
20.4 °CHighest 5 December, 2025
33 °C
Climate (2020–Present)
Point Perpendicular (10km)
Average Low 2020–2025
14.7 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
20.7 °C