HMAS Watson Weather Forecast
- 17
- 21
Rain
- 16
- 19
Rain
- 14
- 19
Sunny day. Possible shower
- 14
- 19
Shower or two. Windy
- 15
- 19
Showers. Becoming windy
- 17
- 21
Shower or two
- 16
- 21
Shower or two
Today 18 May Sydney
Cloudy. Very high chance of rain. Light winds.
Sydney Enclosed Waters
Sydney Harbour, Pittwater and Botany Bay- Wind
- North to northwesterly about 10 knots.
- Seas
- Below 0.5 metres.
- Weather
- Cloudy. Near 100% chance of rain.
- Weather Situation
- A trough in the state's west is heading eastwards and forecast to cross Sydney Waters on Tuesday morning. A low pressure system is forecast to form withing the trough as the system enters the Tasman Sea. The low will then remain over the Tasman Sea while whipping fresh to strong southerly winds and large powerful swells to the coastline mid to late this week.
HMAS Watson Temperature Statistics View More
May Temperature
Sydney (Observatory Hill) (7km)
Lowest 8 May, 2026
9.9 °CAverage May
17.7 °CHighest 3 May, 2026
25.9 °C
Climate (2021–Present)
Sydney (Observatory Hill) (7km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
18.4 °CAverage High 2021–2026
23.5 °C