Hawkesbury River - Milson Island Weather Forecast
- 12
- 28
Partly cloudy
- 13
- 31
Partly cloudy
- 13
- 18
Showers
- 11
- 19
Shower or two
- 10
- 21
Partly cloudy
- 9
- 25
Sunny
- 11
- 28
Sunny
Today 25 Sep Central Coast
Partly cloudy. The chance of a thunderstorm in the afternoon and evening. Winds northeasterly 15 to 25 km/h tending northerly 15 to 20 km/h in the evening then becoming light in the late evening.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- Northeasterly 15 to 20 knots tending northerly 10 to 15 knots in the evening then decreasing to below 10 knots in the late evening.
- Seas
- Below 0.5 metres.
- Weather
- Mostly clear. The chance of a thunderstorm early this evening.
- Weather Situation
- A high pressure system over the Tasman Sea directs a north to northeasterly flow through the Sydney Waters. A cold front and trough will enter the Tasman Sea during the weekend, bringing a southerly change that will pass through the Sydney Waters on Saturday night. A high pressure centre will then move across Tasmania early next week, with winds over the NSW coast tending southeasterly in response.
Hawkesbury River - Milson Island Temperature Statistics View More
September Temperature
Terrey Hills (20km)
Lowest 10 September, 2026
8.1 °CAverage September
16.4 °CHighest 21 September, 2026
32 °C
Climate (2021–2026)
Terrey Hills (20km)
Average Low 2021–2026
13.6 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
22 °C