Parramatta River - Blackwall Point Weather Forecast
- 14
- 17
Shower or two
- 14
- 20
Cloudy
- 12
- 22
Partly cloudy
- 13
- 25
Sunny
- 16
- 29
Sunny
- 19
- 29
Showers
- 15
- 20
Shower or two
Today 27 Sep Sydney
Cloudy. High chance of showers. Winds southeasterly 20 to 30 km/h turning southerly 15 to 20 km/h in the evening.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- Southeasterly 15 to 20 knots. Squalls possible with the wind change.
- Seas
- Below 0.5 metres.
- Weather
- Cloudy. 80% chance of showers.
- Weather Situation
- Fresh to strong south to southeasterly winds lie over Sydney Waters in the wake of a cold front. A ridge of high pressure will build over the coastal waters through the early days of the week, turning winds north to northeasterly over Sydney waters through to midweek.
Parramatta River - Blackwall Point Temperature Statistics View More
September Temperature
Sydney (Observatory Hill) (6km)
Lowest 18 September, 2026
9.4 °CAverage September
17.9 °CHighest 21 September, 2026
32.7 °C
Climate (2021–2026)
Sydney (Observatory Hill) (6km)
Average Low 2021–2026
14.9 °CAverage 2021–2026
18.5 °CAverage High 2021–2026
23.6 °C