Big Rocky Island Weather Forecast
- 14
- 23
Rain at times then sunny
- 11
- 20
Becoming windy. Partly cloudy
- 8
- 18
Sunny
- 9
- 17
Showers
- 13
- 18
Showers
- 12
- 19
Showers
- 11
- 18
Showers
Today 2 Jul Hunter
Very high chance of rain, most likely in the early morning. Sunny afternoon. Winds northerly 20 to 30 km/h turning northwesterly early in the morning. Overnight temperatures falling to between 11 and 14 with daytime temperatures reaching between 17 and 22.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- Northerly 20 to 25 knots, reaching up to 30 knots offshore during the morning. Winds turning northwesterly 15 to 25 knots in the late morning and afternoon.
- Seas
- 1.5 to 2.5 metres, decreasing below 1.5 metres by early evening.
- 1st Swell
- North to northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning.
- Weather
- Partly cloudy. 80% chance of rain. The chance of a thunderstorm offshore south of Port Stephens this morning.
- Weather Situation
- Northwesterly winds are strengthening ahead of a cold front that will cross the state tomorrow. Winds will turn west to southwesterly on Friday following the passage of that cold front. A high pressure system over the Bight will then drift towards Tasmania while a low develops near New Zealand, bringing fresh to strong southerly winds and large, powerful waves to the coastal areas over the weekend and into early next week.
Big Rocky Island Temperature Statistics View More
July Temperature
Williamtown RAAF Base (28km)
Lowest 1 July, 2026
8.7 °CAverage July
12.9 °CHighest
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Climate (2021–2026)
Williamtown RAAF Base (28km)
Average Low 2021–2026
13.4 °CAverage 2021–2026
18.2 °CAverage High 2021–2026
24 °C