Cowan Creek - Jerusalem Bay Weather Forecast
- 14
- 28
Shower or two
- 11
- 20
Sunny
- 10
- 20
Sunny
- 11
- 21
Partly cloudy
- 13
- 20
Shower or two
- 12
- 21
Possible shower
- 11
- 21
Partly cloudy
Today 17 Apr Sydney
Mostly sunny. The chance of smoke haze. Medium chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm in the late afternoon and evening, possibly severe with damaging winds and large hail. Winds west to northwesterly 15 to 20 km/h shifting southerly 25 to 35 km/h in the late afternoon.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- Southerly 15 to 25 knots increasing to 20 to 30 knots in the late evening.
- Seas
- Below 0.5 metres.
- Weather
- Partly cloudy. 70% chance of showers. The chance of a thunderstorm.
- Weather Situation
- A southerly change has crossed Sydney Local Waters and is bringing fresh and gusty southerly winds in its wake and unsettled weather. In the wake of this, the a high pressure system over southern NSW will extend a ridge over Sydney Waters. The high is expected to move east next week reaching the southern Tasman Sea by Sunday, maintaining settled weather over the area.
Cowan Creek - Jerusalem Bay Temperature Statistics View More
April Temperature
Terrey Hills (11km)
Lowest 13 April, 2026
9.9 °CAverage April
18.5 °CHighest 7 April, 2026
29.4 °C
Climate (2021–Present)
Terrey Hills (11km)
Average Low 2021–2026
13.4 °CAverage 2021–2026
17 °CAverage High 2021–2026
21.9 °C