Artarmon Weather Forecast
- 19
- 24
Showers. Storm
- 18
- 27
Shower or two
- 19
- 31
Possible shower
- 18
- 23
Possible shower
- 17
- 23
Cloudy
- 17
- 28
Partly cloudy
- 17
- 28
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.
Artarmon Temperature Statistics View More
December Temperature
Sydney (Observatory Hill) (5km)
Lowest 2 December, 2025
13.3 °CAverage December
22.4 °CHighest 5 December, 2025
37.8 °C
Climate (2020–Present)
Sydney (Observatory Hill) (5km)
Average Low 2020–2025
14.7 °CAverage 2020–2025
18.3 °CAverage High 2020–2025
23.4 °C