Saint Mary Bay Weather Forecast
- 15
- 22
Windy
- 14
- 22
Windy
- 14
- 23
Sunny
- 15
- 28
Partly cloudy
- 15
- 21
Partly cloudy
- 15
- 21
Cloudy
- 16
- 25
Partly cloudy
Today 15 Jan West Coast
Mostly clear. Winds southeasterly 25 to 35 km/h.
Upper West Coastal Waters
Fowlers Bay to Elliston- Wind
- Southeasterly 20 to 30 knots.
- Seas
- 2 to 2.5 metres.
- 1st Swell
- Southwesterly 1.5 metres.
- Weather
- Mostly clear.
- Weather Situation
- A ridge of high pressure south of SA will persist over the coming days, with the high centre moving to the southeast, to be south of Tasmania on Friday and to the Tasman Sea later over the weekend. The ridge lingers into Saturday. On Sunday a trough will begin to move in from the west, reaching central districts by the evening and into the northeast early next week.
Saint Mary Bay Temperature Statistics View More
January Temperature
Streaky Bay (45km)
Lowest 2 January, 2026
8.8 °CAverage January
21.1 °CHighest 7 January, 2026
44.1 °C
Climate (2021–Present)
Streaky Bay (45km)
Average Low 2021–2026
12 °CAverage 2021–2026
16.4 °CAverage High 2021–2026
23.5 °C