Garden Island Weather Forecast
- 7
- 20
Mostly clear
- 5
- 17
Sunny
- 5
- 18
Sunny
- 2
- 19
Sunny
- 5
- 19
Mostly sunny
- 7
- 21
Shower or two
- 9
- 19
Possible shower
Today 4 Aug Hunter
Clear. Light winds.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- West to southwesterly about 10 knots.
- Seas
- Below 0.5 metres.
- 1st Swell
- Southerly below 1 metre.
- Weather
- Partly cloudy. The chance of a thunderstorm offshore north of Port Stephens.
- Weather Situation
- A low pressure system near Tasmania is slowly moving eastwards, maintaining moderate to fresh west to southwesterly winds over the southern and central coastal waters. Winds will gradually ease and become light and variable later in the week as the low heads to the Tasman Sea and weakens, while a high pressure system moves across the state. Winds will then turn northerly and strengthen through the weekend ahead of a strong cold front that will cross the coastal waters late this weekend into early next week.
Garden Island Temperature Statistics View More
August Temperature
Williamtown RAAF Base (21km)
Lowest 2 August, 2026
3 °CAverage August
11.2 °CHighest 2 August, 2026
20.6 °C
Climate (2021–2026)
Williamtown RAAF Base (21km)
Average Low 2021–2026
13.4 °CAverage 2021–2026
18.2 °CAverage High 2021–2026
24 °C