Frankston Weather Forecast
- 14
- 22
Mostly clear
- 11
- 21
Rain
- 12
- 20
Possible shower
- 12
- 19
Shower or two
- 12
- 21
Possible shower
- 12
- 18
Cloudy
- 12
- 19
Cloudy
Today 20 Dec Melbourne
Mostly clear. Light winds.
Port Phillip Local Waters
- Wind
- Southerly 10 to 15 knots.
- Seas
- Below 1 metre.
- Weather
- Mostly clear.
- Weather Situation
- A broad trough of low pressure lies over Victoria and Bass Strait and is expected to linger over the area this evening. A low pressure system south of the Bight will move east and combine with this trough over western Victoria early Sunday. The low pressure system will then deepen and slowly move southeast across the State during Sunday to clear into eastern Bass Strait late Sunday. A high pressure ridge then builds across Victoria and Bass Strait during Monday. A weak cold front crosses Bass Strait during late Monday and early Tuesday with the ridge re-establishing itself from Tuesday to Thursday.
Frankston Temperature Statistics View More
December Temperature
Moorabbin Airport (18km)
Lowest 11 December, 2025
7.7 °CAverage December
18.1 °CHighest 18 December, 2025
38 °C
Climate (2020–Present)
Moorabbin Airport (18km)
Average Low 2020–2025
10.7 °CAverage 2020–2025
15.2 °CAverage High 2020–2025
20.3 °C