Boondelbah Island Weather Forecast
- 15
- 24
Cloud clearing
- 12
- 27
Sunny
- 13
- 29
Sunny
- 16
- 26
Shower or two
- 14
- 23
Shower or two
- 16
- 22
Showers
- 16
- 23
Shower or two
Today 18 Apr Hunter
Mostly sunny. The chance of morning fog. Slight chance of a shower along the coastal fringe early this morning. Near zero chance of rain elsewhere. Light winds. Daytime maximum temperatures in the low to mid 20s.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- Southwesterly 15 to 20 knots decreasing to about 10 knots in the late evening.
- Seas
- 1 to 2 metres, decreasing to 1 metre by early evening.
- 1st Swell
- Southeasterly 4 metres.
- Weather
- Partly cloudy.
- Caution
- Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
- Weather Situation
- Ex-Tropical Cyclone Tam has transitioned into a deep Tasman low pressure system, driving fresh southerly winds and large powerful waves to the coastal waters. Winds should shift north to northwesterly during the weekend as the low continues to move towards New Zealand while a cold front and its associated trough approaches to the coast from the west. These systems will cross the coastal waters on Monday, and a low pressure system is forecast to develop off the south coast in its wake. Winds and surf will increase from Tuesday as the low deepens and heads northeastwards.
Boondelbah Island Temperature Statistics View More
April Temperature
Williamtown RAAF Base (37km)
Lowest 14 April, 2025
12.1 °CAverage April
19.4 °CHighest 11 April, 2025
28.2 °C
Climate (2020–Present)
Williamtown RAAF Base (37km)
Average Low 2020–2025
13.2 °CAverage 2020–2025
17.9 °CAverage High 2020–2025
23.6 °C