Lake Illawarra Weather Forecast

Today 9 Sep
- 7
- 18
Cloudy
Thu 10 Sep
- 8
- 19
Partly cloudy
Fri 11 Sep
- 9
- 21
Cloud clearing
Sat 12 Sep
- 8
- 23
Mostly sunny
Sun 13 Sep
- 10
- 24
Mostly sunny
Mon 14 Sep
- 11
- 28
Partly cloudy
Tue 15 Sep
- 13
- 27
Shower or two

Today 9 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 10 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 11 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 12 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 13 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 14 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 15 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 9 Sep Wollongong

Cloudy. Slight chance of a shower, becoming less likely in the late afternoon and evening. Winds southerly 30 to 45 km/h.

Lake Illawarra Temperature Statistics View More

September Temperature

Illawarra Regional Airport (6km)

Lowest 8 August, 2026
2 °C
Average 2026
17.2 °C
Highest 10 January, 2026
42.6 °C
Lowest 8 August, 2026
2 °C
Average August
13.2 °C
Highest 21 August, 2026
23.7 °C
Lowest 1 September, 2026
5.5 °C
Average September
17.4 °C
Highest 5 September, 2026
31.1 °C

Climate (2021–2026)

Illawarra Regional Airport (6km)

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Average Low 2021–2026
12.5 °C
Average 2021–2026
17.3 °C
Average High 2021–2026
22.8 °C

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