St Marys South Weather Forecast

Today 19 Sep
- 9
- 31
Sunny
Sun 20 Sep
- 12
- 34
Sunny
Mon 21 Sep
- 16
- 31
Shower or two developing
Tue 22 Sep
- 12
- 19
Shower or two
Wed 23 Sep
- 13
- 23
Shower or two
Thu 24 Sep
- 14
- 27
Partly cloudy
Fri 25 Sep
- 14
- 32
Mostly sunny

Today 19 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sun 20 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Mon 21 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Tue 22 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Wed 23 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Thu 24 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Fri 25 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm

Today 19 Sep Sydney

Sunny. Winds west to southwesterly 15 to 25 km/h.

St Marys South Temperature Statistics View More

September Temperature

Horsley Park (11km)

Lowest 25 July, 2026
1.2 °C
Average 2026
17.2 °C
Highest 10 January, 2026
41.5 °C
Lowest 5 August, 2026
1.5 °C
Average August
12.9 °C
Highest 24 August, 2026
24.5 °C
Lowest 18 September, 2026
5.2 °C
Average September
15.8 °C
Highest 5 September, 2026
32.3 °C

Climate (2021–2026)

Horsley Park (11km)

Take a look at our website widgetsAvailable free! Find Out More

Average Low 2021–2026
12.5 °C
Average 2021–2026
17.4 °C
Average High 2021–2026
23.8 °C

Get WillyWeather+ to remove ads