Horn Island Weather Forecast
- 15
- 21
Partly cloudy
- 11
- 21
Rain
- 12
- 19
Shower
- 11
- 17
Shower
- 11
- 19
Windy
- 11
- 16
Windy
- 11
- 18
Cloudy
Today 20 Dec West and South Gippsland
Mostly clear. Slight chance of a shower about the ranges, near zero chance elsewhere. The chance of a thunderstorm early this evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding about the ranges. Winds west to southwesterly 15 to 25 km/h tending southeast to southwesterly in the evening then becoming light in the late evening.
Central Gippsland Coastal Waters
Wilsons Promontory to Lakes Entrance- Wind
- West to southwesterly 15 to 20 knots.
- Seas
- 1.5 metres, increasing to 1 to 2 metres in the east.
- 1st Swell
- Southwesterly below 1 metre.
- Weather
- Partly cloudy.
- 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 south east 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.
Horn Island Temperature Statistics View More
December Temperature
Yarram Airport (15km)
Lowest 11 December, 2025
3.8 °CAverage December
16.5 °CHighest 18 December, 2025
37 °C
Climate (2020–Present)
Yarram Airport (15km)
Average Low 2020–2025
8.5 °CAverage 2020–2025
13.7 °CAverage High 2020–2025
19.8 °C