Collaroy Weather Forecast
- 19
- 22
Showers. Possible storm
- 19
- 25
Shower or two
- 20
- 30
Possible shower
- 19
- 20
Shower or two
- 18
- 21
Cloudy
- 19
- 25
Partly cloudy
- 18
- 27
Sunny
Today 12 Dec Sydney
Cloudy. High chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the morning and afternoon, possibly severe with heavy rain which may lead to flash flooding in the morning and early afternoon. Winds south to southeasterly 15 to 20 km/h turning easterly 15 to 25 km/h during the morning then becoming light in the late evening.
Collaroy Temperature Statistics View More
December Temperature
Terrey Hills (8km)
Lowest 3 December, 2025
11.3 °CAverage December
21.5 °CHighest 6 December, 2025
39.9 °C
Climate (2020–Present)
Terrey Hills (8km)
Average Low 2020–2025
13.4 °CAverage 2020–2025
16.9 °CAverage High 2020–2025
21.8 °C