Newcastle Weather Forecast
- 16
- 31
Possible shower
- 13
- 19
Shower or two
- 14
- 23
Possible shower
- 13
- 25
Mostly sunny
- 12
- 28
Sunny
- 13
- 29
Sunny
- 14
- 21
Shower or two
Today 21 Sep Newcastle
Sunny morning. Medium chance of showers, most likely in the evening. Winds northwesterly 15 to 25 km/h increasing to 25 to 40 km/h in the morning then shifting southerly 25 to 35 km/h in the middle of the day.
Hunter Coastal Waters
Seal Rocks to Broken Bay- Wind
- Northwesterly 15 to 20 knots shifting south to southeasterly 15 to 25 knots in the early afternoon. Winds reaching up to 30 knots offshore north of Norah Head in the late afternoon.
- Seas
- Around 1 metre, increasing to 1 to 2 metres around midday.
- 1st Swell
- Southerly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 2 to 2.5 metres later in the evening.
- Weather
- Mostly sunny.
Newcastle Temperature Statistics View More
September Temperature
Newcastle (Nobbys) (2km)
Lowest 9 September, 2026
8.7 °CAverage September
17.2 °CHighest 5 September, 2026
30.2 °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