Joass Island Weather Forecast
- 10
- 17
Clear
- 7
- 19
Mostly sunny
- 11
- 21
Shower or two
- 10
- 17
Partly cloudy
- 10
- 18
Mostly sunny
- 9
- 18
Sunny
- 8
- 16
Sunny
Today 4 Jul Hunter
Sunny. Light winds.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- Southwesterly 15 to 20 knots becoming variable about 10 knots in the late evening. Winds may reach up to 30 knots at times.
- Seas
- 1 to 2 metres, decreasing to 1 metre by early evening.
- 1st Swell
- Southerly 3 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A complex low pressure system is gradually moving away over the Tasman Sea, however its presence still sees strong winds and large powerful surf into this evening. Winds and surf conditions are forecast to ease gradually later in the week as the system moves further offshore and it is followed by a large high pressure ridge moving across the state. During the weekend a weakening cold front and trough are expected to cross the state. This will be followed by a stronger cold front mid-week bringing a return to gusty winter westerlies.
Joass Island Temperature Statistics View More
July Temperature
Williamtown RAAF Base (17km)
Lowest 1 July, 2025
8.7 °CAverage July
13 °CHighest 2 July, 2025
16.7 °C
Climate (2020–Present)
Williamtown RAAF Base (17km)
Average Low 2020–2025
13.3 °CAverage 2020–2025
18 °CAverage High 2020–2025
23.6 °C