St Marys Weather Forecast

Today 19 May
- 12
- 18
Partly cloudy
Wed 20 May
- 12
- 20
Shower or two
Thu 21 May
- 9
- 19
Partly cloudy
Fri 22 May
- 10
- 20
Partly cloudy
Sat 23 May
- 12
- 20
Possible shower
Sun 24 May
- 10
- 19
Shower or two
Mon 25 May
- 11
- 19
Shower or two

Today 19 May
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Wed 20 May
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 21 May
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 22 May
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 23 May
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 24 May
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 25 May
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 19 May Adelaide

Partly cloudy. Winds southwesterly 15 to 25 km/h.

St Marys Temperature Statistics View More

May Temperature

Noarlunga (18km)

Lowest 7 May, 2026
9.1 °C
Average 2026
20.3 °C
Highest 26 January, 2026
43.8 °C
Lowest 15 April, 2026
10.7 °C
Average April
18.4 °C
Highest 21 April, 2026
29.4 °C
Lowest 7 May, 2026
9.1 °C
Average May
16.5 °C
Highest 1 May, 2026
28.9 °C

Climate (2021–Present)

Noarlunga (18km)

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Average Low 2021–2026
12.8 °C
Average 2021–2026
16.8 °C
Average High 2021–2026
21.9 °C

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