Boondelbah Island Weather Forecast
- 15
- 31
Possible shower or storm
- 19
- 35
Possible shower or storm
- 17
- 33
Mostly sunny
- 17
- 26
Partly cloudy
- 16
- 34
Partly cloudy
- 16
- 26
Partly cloudy
- 16
- 30
Sunny
Today 25 Nov Hunter
Partly cloudy. The chance of fog in the early morning. Medium chance of showers, most likely in the afternoon. A thunderstorm likely in the afternoon and early evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the afternoon. Light winds becoming northwesterly 25 to 35 km/h in the morning. Overnight temperatures falling to around 15 with daytime temperatures reaching 33 to 38.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- Variable below 10 knots becoming north to northeasterly 15 to 20 knots in the morning then tending north to northwesterly in the late afternoon.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres around midday.
- 1st Swell
- Southerly 1.5 to 2 metres, decreasing to 1.5 metres by early evening.
- Weather
- Mostly sunny morning. The chance of a thunderstorm in the afternoon and early evening.
Boondelbah Island Temperature Statistics View More
November Temperature
Williamtown RAAF Base (37km)
Lowest 12 November, 2025
8.3 °CAverage November
20.9 °CHighest 8 November, 2025
34.9 °C
Climate (2020–Present)
Williamtown RAAF Base (37km)
Average Low 2020–2025
13.3 °CAverage 2020–2025
18 °CAverage High 2020–2025
23.7 °C