Sunderland Bay Weather Forecast
- 11
- 18
Mostly clear
- 11
- 20
Mostly sunny
- 13
- 25
Mostly sunny
- 15
- 20
Possible shower
- 12
- 20
Shower or two. Becoming windy
- 11
- 17
Cloudy
- 11
- 18
Partly cloudy
Today 10 Dec Central
Partly cloudy. Winds south to southeasterly 15 to 20 km/h.
Western Port Local Waters
- Wind
- South to southeasterly about 10 knots.
- Seas
- Below 1 metre.
- Weather
- Mostly clear.
- Weather Situation
- A ridge of high pressure extends across Victoria, and is expected to continue into Thursday, as the high centre to the south of the Bight is forecast to move eastwards across Tasmania on Thursday. A trough is forecast to extend from NSW into the northeast of Victoria at times during Wednesday and Thursday, before a more significant trough is forecast to move across the far west on Friday then over the remainder of the state on Saturday. A cold front in expected to move through Bass Strait during Sunday with increasing south to southwesterly flow over the state as a secondary high pressure ridge extends over from the west.
Sunderland Bay Temperature Statistics View More
December Temperature
Rhyll (5km)
Lowest 7 December, 2025
8.6 °CAverage December
15.9 °CHighest 4 December, 2025
31.6 °C
Climate (2020–Present)
Rhyll (5km)
Average Low 2020–2025
12.1 °CAverage 2020–2025
15.1 °CAverage High 2020–2025
19.2 °C