Newcastle Weather Forecast
- 13
- 31
Windy. Partly cloudy
- 14
- 23
Sunny
- 12
- 22
Shower or two
- 12
- 19
Shower or two
- 8
- 21
Shower or two
- 11
- 20
Shower or two
- 9
- 22
Mostly sunny
Today 5 Sep Newcastle
Partly cloudy. Slight chance of a shower. The chance of a thunderstorm in the late afternoon and evening. Damaging winds possible. Winds northwesterly 30 to 45 km/h tending westerly 15 to 25 km/h in the late evening.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- Northerly 20 to 25 knots, reaching up to 30 knots offshore south of Norah Head in the late afternoon. Winds turning northwesterly 15 to 20 knots in the evening.
- Seas
- 1 to 2 metres.
- 1st Swell
- Southerly around 1 metre, increasing to 1 to 1.5 metres north of Norah Head.
- Weather
- Partly cloudy. The chance of a thunderstorm.
- Weather Situation
- A strong high pressure system in the Tasman Sea extends a ridge across northeast NSW, while cold front has crossed the southern inland and will continue through the central east later this evening. The front is forecast to reach northeast NSW by Sunday morning then move offshore into the Tasman Sea through the day. Another weak ridge is forecast in the wake of the front Sunday, followed by a series of fronts slipping south of the state through Monday onwards.
Newcastle Temperature Statistics View More
September Temperature
Newcastle (Nobbys) (2km)
Lowest 1 September, 2026
10 °CAverage September
19 °CHighest 3 September, 2026
28.8 °C
Climate (2021–2026)
Newcastle (Nobbys) (2km)
Average Low 2021–2026
15.5 °CAverage 2021–2026
18.6 °CAverage High 2021–2026
22.4 °C