Mosman Bay Weather Forecast
- 16
- 30
Showers clearing
- 17
- 25
Partly cloudy
- 16
- 31
Shower or two
- 17
- 22
Showers
- 15
- 20
Shower or two
- 13
- 21
Shower or two
- 15
- 21
Showers
Today 10 Oct Sydney
Partly cloudy. High chance of showers, most likely in the early morning. The chance of a thunderstorm in the morning and afternoon. Light winds becoming northwesterly 15 to 25 km/h in the morning then tending westerly 20 to 30 km/h in the early afternoon.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- North to northwesterly about 10 knots tending westerly 10 to 15 knots in the early afternoon.
- Seas
- Below 0.5 metres.
- Weather
- Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the morning.
Mosman Bay Temperature Statistics View More
October Temperature
Sydney (Observatory Hill) (3 km)
Lowest 9 October, 2026
11.7 °CAverage October
18.4 °CHighest 1 October, 2026
30.1 °C
Climate (2021–2026)
Sydney (Observatory Hill) (3 km)
Average Low 2021–2026
14.9 °CAverage 2021–2026
18.5 °CAverage High 2021–2026
23.6 °C