Weeroona Island Weather Forecast
- 17
- 29
Mostly sunny
- 16
- 31
Mostly sunny
- 19
- 33
Sunny
- 19
- 33
Sunny
- 19
- 31
Mostly sunny
- 17
- 23
Possible shower
- 10
- 21
Mostly sunny
Today 21 Mar Mid North
Mostly sunny. The chance of fog in the south early this morning. Slight chance of a shower in the north in the late morning and afternoon. Near zero chance of rain elsewhere. Light winds becoming southeast to southwesterly 15 to 20 km/h in the early afternoon then becoming light in the late evening. Daytime maximum temperatures in the mid to high 20s.
Spencer Gulf Coastal Waters
- Wind
- South to southeasterly 10 to 15 knots tending south to southwesterly in the middle of the day then tending south to southeasterly in the evening. Winds reaching up to 20 knots north of Cowell to Wallaroo during the afternoon and evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres north of Cowell to Wallaroo during the afternoon.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
- Weather
- Sunny.
- Weather Situation
- A ridge of high pressure will persist across the coastal waters. The high pressure centre associated with the ridge will become established in the Tasman Sea over the weekend. A trough moves over the south early next week with a cold front clipping the southeast mid week. A new ridge develops south of the Bight early to mid next week.
Weeroona Island Temperature Statistics View More
March Temperature
Whyalla Airport (48km)
Lowest 14 March, 2026
10.8 °CAverage March
20.9 °CHighest 10 March, 2026
34.9 °C
Climate (2021–Present)
Whyalla Airport (48km)
Average Low 2021–2026
11.9 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
23.8 °C