Merewether Beach Weather Forecast
- 21
- 29
Mostly sunny
- 19
- 29
Partly cloudy
- 20
- 24
Shower or two
- 17
- 22
Possible shower
- 16
- 23
Partly cloudy
- 16
- 25
Partly cloudy
- 16
- 27
Mostly sunny
Today 23 Dec Newcastle
Mostly sunny. Slight chance of a shower. The chance of fog in the early morning. The chance of smoke haze in the late afternoon and evening. Winds southeasterly 15 to 20 km/h becoming light before dawn then becoming southeasterly 25 to 35 km/h in the middle of the day.
Merewether Beach Temperature Statistics View More
December Temperature
Newcastle (Nobbys) (4km)
Lowest 2 December, 2025
11.3 °CAverage December
22.4 °CHighest 21 December, 2025
39.5 °C
Climate (2020–Present)
Newcastle (Nobbys) (4km)
Average Low 2020–2025
15.3 °CAverage 2020–2025
18.5 °CAverage High 2020–2025
22.3 °C