Riddoch Bay Weather Forecast
- 13
- 17
Rain
- 12
- 18
Shower or two
- 8
- 18
Shower or two
- 10
- 17
Showers
- 11
- 18
Shower or two
- 9
- 18
Possible shower
- 9
- 18
Possible shower
Today 16 May Mount Gambier
Cloudy. Very high chance of rain, becoming less likely late this afternoon and evening. Winds northerly 20 to 30 km/h becoming light in the late afternoon.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Northerly 15 to 20 knots, reaching up to 25 knots offshore in the late morning. Winds tending northwesterly in the early afternoon then becoming variable about 10 knots in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres during the morning, then decreasing below 1 metre later in the evening.
- 1st Swell
- West to southwesterly 2 metres, increasing to 2 to 3 metres during the morning.
- Weather
- Cloudy. Near 100% chance of rain.
- Weather Situation
- A strong high pressure system in the Tasman Sea is slowly moving east. A cold front will move east across the Southern Ocean over the weekend, with a second front moving across the south of SA on Monday.
Riddoch Bay Temperature Statistics View More
May Temperature
Mount Gambier Airport (33km)
Lowest 7 May, 2026
5.5 °CAverage May
14.2 °CHighest 1 May, 2026
28.5 °C
Climate (2021–Present)
Mount Gambier Airport (33km)
Average Low 2021–2026
8.9 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
20 °C