Observatory Hill Weather Forecast

Today 18 Sep
- 11
- 22
Clear
Fri 19 Sep
- 12
- 25
Late shower or two
Sat 20 Sep
- 17
- 22
Sunny
Sun 21 Sep
- 9
- 21
Sunny
Mon 22 Sep
- 11
- 23
Shower or two developing
Tue 23 Sep
- 11
- 19
Shower or two
Wed 24 Sep
- 10
- 21
Mostly 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
Fri 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
Sat 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
Sun 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
Mon 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
Tue 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
Wed 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

Sunny. Light winds becoming northeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening.

Observatory Hill Temperature Statistics View More

September Temperature

Sydney (Observatory Hill) (0km)

Lowest 19 June, 2025
6 °C
Average 2025
18 °C
Highest 16 March, 2025
37.1 °C
Lowest 18 August, 2025
6.6 °C
Average August
13.8 °C
Highest 5 August, 2025
22.9 °C
Lowest 1 September, 2025
9.3 °C
Average September
17.2 °C
Highest 8 September, 2025
29 °C

Climate (2020–Present)

Sydney (Observatory Hill) (0km)

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Average Low 2020–2025
14.7 °C
Average 2020–2025
18.2 °C
Average High 2020–2025
23.4 °C

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