Newcastle Beach Weather Forecast
- 13
- 28
Shower or two
- 11
- 17
Shower or two. Becoming windy
- 10
- 19
Shower or two
- 6
- 25
Sunny
- 10
- 28
Sunny
- 10
- 30
Sunny
- 13
- 28
Becoming cloudy
Today 15 Sep Newcastle
Mostly sunny. Medium chance of showers this evening. The chance of a thunderstorm during this afternoon and evening. Winds northwesterly 20 to 30 km/h shifting south to southeasterly in the middle of the day then becoming southerly 25 to 35 km/h in the late evening.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- North to northwesterly 15 to 25 knots shifting south to southeasterly in the late morning. Winds reaching up to 30 knots early in the morning and again in the late evening.
- Seas
- 1.5 to 2.5 metres, decreasing below 1 metre around midday, then increasing to 1 to 1.5 metres later in the evening.
- 1st Swell
- Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Stephens later in the evening.
- Weather
- Sunny day. 70% chance of showers this evening. The chance of a thunderstorm late this afternoon and evening.
- Weather Situation
- Northerly winds will increase during today ahead of a trough bringing a southerly change to most of the coast during today. After this, southerly winds will persist as a ridge of high pressure extends across from the west.
Newcastle Beach Temperature Statistics View More
September Temperature
Newcastle (Nobbys) (1km)
Lowest 9 September, 2026
8.7 °CAverage September
17.2 °CHighest 5 September, 2026
30.2 °C
Climate (2021–2026)
Newcastle (Nobbys) (1km)
Average Low 2021–2026
15.5 °CAverage 2021–2026
18.6 °CAverage High 2021–2026
22.4 °C