St Clair Weather Forecast

Today 8 Dec
- 16
- 31
Mostly clear
Tue 9 Dec
- 17
- 37
Sunny
Wed 10 Dec
- 18
- 28
Possible late shower
Thu 11 Dec
- 17
- 22
Showers. Possible storm
Fri 12 Dec
- 17
- 23
Showers. Possible storm
Sat 13 Dec
- 16
- 31
Shower or two
Sun 14 Dec
- 18
- 34
Possible shower

Today 8 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Tue 9 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Wed 10 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Thu 11 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Fri 12 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sat 13 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sun 14 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm

Today 8 Dec Sydney

Mostly clear. Winds northeasterly 25 to 35 km/h decreasing to 15 to 20 km/h in the late evening.

St Clair Temperature Statistics View More

December Temperature

Horsley Park (9km)

Lowest 17 July, 2025
0.5 °C
Average 2025
17.6 °C
Highest 28 January, 2025
42 °C
Lowest 12 November, 2025
6.6 °C
Average November
20.5 °C
Highest 8 November, 2025
35.2 °C
Lowest 3 December, 2025
9.6 °C
Average December
22.6 °C
Highest 6 December, 2025
40.8 °C

Climate (2020–Present)

Horsley Park (9km)

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

Average Low 2020–2025
12.2 °C
Average 2020–2025
17.2 °C
Average High 2020–2025
23.6 °C

Get WillyWeather+ to remove ads