Port Macdonnell Weather Forecast
- 15
- 21
Shower
- 11
- 17
Partly cloudy
- 7
- 18
Shower
- 12
- 19
Shower
- 10
- 15
Cloudy
- 8
- 16
Cloudy
- 8
- 18
Shower
Today 19 Oct Lower South East
Cloudy. High chance of showers, most likely in the evening. Winds northwesterly 15 to 25 km/h shifting south to southwesterly 15 to 20 km/h in the late afternoon. Daytime maximum temperatures 21 to 27.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- West to northwesterly 10 to 15 knots, reaching up to 20 knots south of Port MacDonnell in the late morning and early afternoon. Winds tending west to southwesterly below 10 knots during the afternoon and evening.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre by early evening.
- 1st Swell
- Southwesterly 1 to 2 metres.
- Weather
- Cloudy. 70% chance of showers.
- Weather Situation
- A weakening ridge over the eastern waters will be cleared by a trough pushing in from the west this morning. This trough and an embedded low will move inland with another low pressure system moving into the Bight by Tuesday. A series of troughs and a cold front will move over coastal waters with the passing of this low through the mid week before a ridge extends over waters late by Wednesday.
Port Macdonnell Temperature Statistics View More
October Temperature
Mount Gambier Airport (34km)
Lowest 13 October, 2025
4.3 °CAverage October
12.7 °CHighest 16 October, 2025
24.7 °C
Climate (2020–Present)
Mount Gambier Airport (34km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.7 °CAverage High 2020–2025
20 °C