Newcastle Weather Forecast
- 11
- 21
Partly cloudy
- 12
- 23
Sunny
- 10
- 21
Possible shower
- 10
- 23
Sunny
- 11
- 23
Showers increasing
- 13
- 22
Showers
- 10
- 20
Partly cloudy
Today 21 Aug Newcastle
Partly cloudy. Winds northwesterly 15 to 20 km/h.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- Northwesterly 10 to 15 knots, reaching up to 20 knots offshore south of Port Stephens.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres offshore south of Port Stephens.
- 1st Swell
- Northeasterly below 1 metre.
- Weather
- Partly cloudy. The chance of a thunderstorm offshore north of Norah Head.
- Weather Situation
- Winds are forecast to ease and generally shift westerly today as a series of cold fronts brush the south. Then, another high pressure system is forecast to move into the Tasman Sea later into the weekend, gradually backing the winds north to northeasterly by Sunday. Winds are forecast to freshen during early next week as the next front approaches the coastal waters, crossing by mid next week.
Newcastle Temperature Statistics View More
August Temperature
Newcastle (Nobbys) (2km)
Lowest 8 August, 2026
6.5 °CAverage August
14 °CHighest 11 August, 2026
21 °C
Climate (2021–2026)
Newcastle (Nobbys) (2km)
Average Low 2021–2026
15.4 °CAverage 2021–2026
18.6 °CAverage High 2021–2026
22.4 °C