Illawong Weather Forecast

Today 18 Sep
- 11
- 22
Mostly clear
Sat 19 Sep
- 15
- 27
Sunny
Sun 20 Sep
- 17
- 27
Sunny
Mon 21 Sep
- 18
- 27
Possible shower developing
Tue 22 Sep
- 14
- 18
Possible shower
Wed 23 Sep
- 15
- 21
Partly cloudy
Thu 24 Sep
- 16
- 23
Sunny

Today 18 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
Sat 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

Today 18 Sep Sydney

Clear. Winds northwest to northeasterly 15 to 20 km/h tending northwest to southwesterly in the evening.

Illawong Temperature Statistics View More

September Temperature

Bankstown Airport (10km)

Lowest 25 July, 2026
1.8 °C
Average 2026
17.6 °C
Highest 10 January, 2026
42.3 °C
Lowest 6 August, 2026
1.8 °C
Average August
12.8 °C
Highest 24 August, 2026
24.9 °C
Lowest 9 September, 2026
5.9 °C
Average September
16 °C
Highest 5 September, 2026
32.9 °C

Climate (2021–2026)

Bankstown Airport (10km)

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Average Low 2021–2026
12.9 °C
Average 2021–2026
17.9 °C
Average High 2021–2026
24.1 °C

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