Seaforth Weather Forecast
- 20
- 31
Clear
- 20
- 32
Sunny
- 21
- 33
Sunny
- 24
- 42
Sunny
- 20
- 25
Shower or two
- 19
- 27
Partly cloudy
- 19
- 30
Shower or two
Today 7 Jan Sydney
Clear. Winds northeasterly 15 to 25 km/h becoming light in the late evening.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- Northeasterly 15 to 20 knots.
- Seas
- Below 0.5 metres.
- Weather
- Clear.
- Weather Situation
- Onshore north to northeasterly winds over Sydney Waters will continue to freshen through this week as a high over the Tasman Sea strengthens while extending a ridge along the coastal waters. Then, a cold front and its associated trough looks set to cross Sydney Waters late Saturday, bringing a fresh to strong southerly wind change in their wake.
Seaforth Temperature Statistics View More
January Temperature
Sydney (Observatory Hill) (8km)
Lowest 2 January, 2026
17.3 °CAverage January
21.5 °CHighest 4 January, 2026
32.3 °C
Climate (2021–Present)
Sydney (Observatory Hill) (8km)
Average Low 2021–2026
14.7 °CAverage 2021–2026
18.3 °CAverage High 2021–2026
23.5 °C