Marion Bay Weather Forecast

Today 26 Aug
- 10
- 16
Cloudy
Thu 27 Aug
- 9
- 18
Mostly sunny
Fri 28 Aug
- 10
- 18
Mostly sunny
Sat 29 Aug
- 11
- 17
Cloud clearing
Sun 30 Aug
- 10
- 17
Cloud clearing
Mon 31 Aug
- 9
- 19
Sunny
Tue 1 Sep
- 12
- 19
Shower or two

Today 26 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Thu 27 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Fri 28 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Sat 29 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Sun 30 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Mon 31 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Tue 1 Sep
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm

Today 26 Aug Yorke Peninsula

Partly cloudy. Light winds. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching around 17.

Investigator Strait Coastal Waters

Wind: Variable below 10 knots.

Seas: Below 1 metre.

1st Swell: West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre around midday.

Weather: Partly cloudy.

Marion Bay Temperature Statistics View More

August Temperature

Stenhouse Bay (6km)

Lowest 17 July, 2026
4.2 °C
Average 2026
16.5 °C
Highest 7 January, 2026
41.1 °C
Lowest 17 July, 2026
4.2 °C
Average July
12.2 °C
Highest 18 July, 2026
18.4 °C
Lowest 1 August, 2026
4.5 °C
Average August
12.8 °C
Highest 18 August, 2026
19.9 °C

Climate (2021–2026)

Stenhouse Bay (6km)

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Average Low 2021–2026
13.2 °C
Average 2021–2026
16.1 °C
Average High 2021–2026
20.5 °C

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