Cape Douglas Offshore Weather Forecast
- 12
- 18
Shower
- 14
- 15
Cloudy
- 13
- 20
Partly cloudy
- 18
- 18
Shower
- 15
- 18
Partly cloudy
- 17
- 21
Partly cloudy
- 17
- 18
Shower
Today 19 Apr Lower South East
Partly cloudy. High chance of showers, becoming less likely this afternoon. The chance of a thunderstorm during the morning and afternoon. Winds north to northeasterly 15 to 20 km/h shifting south to southwesterly 15 to 25 km/h in the late afternoon. Daytime maximum temperatures in the low to mid 20s.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Northerly 10 to 15 knots, reaching up to 20 knots offshore during the morning. Winds shifting south to southwesterly in the early afternoon.
- Seas
- 1 to 1.5 metres.
- 1st Swell
- Southerly 1 to 1.5 metres, increasing to 1.5 to 2 metres south of Port MacDonnell.
- Weather
- Partly cloudy. 60% chance of showers. The chance of a thunderstorm this morning.
- Weather Situation
- A high pressure system centred west of Tasmania extends a ridge over western Victoria. A cold front over the far west of SA will weaken as it moves eastwards over central and eastern parts this morning. The high will move eastwards to be centred southeast of Tasmania later today but will continue to extend a ridge over SA early next week. Another front will move across the south of SA late Tuesday and early Wednesday then another high will move across waters to the south during Wednesday.
Cape Douglas Offshore Temperature Statistics View More
April Temperature
Mount Gambier Airport (43km)
Lowest 18 April, 2026
3 °CAverage April
13.7 °CHighest 5 April, 2026
25.3 °C
Climate (2021–Present)
Mount Gambier Airport (43km)
Average Low 2021–2026
8.8 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
20 °C