Saint Mary Bay Weather Forecast
- 18
- 27
Partly cloudy
- 16
- 21
Partly cloudy
- 16
- 19
Shower
- 15
- 24
Shower
- 16
- 20
Shower
- 15
- 18
Cloudy
- 14
- 16
Cloudy
Today 5 Apr West Coast
Partly cloudy. Light winds.
Upper West Coastal Waters
Fowlers Bay to Elliston- Wind
- North to northeasterly below 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 1 to 1.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A trough over western WA linking to a weak front south of the Bight will continue to move over western and southern parts of SA later Sunday into Monday. A high pressure will move south of the Bight early in the week, before another trough and upper level system develops in the west. and moves across mid to late in the week, with a vigorous cold front to follow later Thursday and into Friday.
Saint Mary Bay Temperature Statistics View More
April Temperature
Streaky Bay (45km)
Lowest 2 April, 2026
8.5 °CAverage April
15 °CHighest 4 April, 2026
29 °C
Climate (2021–Present)
Streaky Bay (45km)
Average Low 2021–2026
11.9 °CAverage 2021–2026
16.5 °CAverage High 2021–2026
23.6 °C