Rottnest Island Airport Weather Forecast

Today 13 Sep
- 16
- 20
Shower or two. Windy
Sun 14 Sep
- 15
- 19
Showers. Very windy
Mon 15 Sep
- 12
- 16
Shower or two. Windy
Tue 16 Sep
- 11
- 17
Shower or two
Wed 17 Sep
- 13
- 18
Showers. Windy
Thu 18 Sep
- 13
- 17
Shower or two. Becoming windy
Fri 19 Sep
- 13
- 17
Possible shower

Today 13 Sep
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 Sep
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Mon 15 Sep
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 16 Sep
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 17 Sep
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 18 Sep
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 19 Sep
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 13 Sep Lower West

Cloudy. High chance of showers. Winds northwesterly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.

Rottnest Island Airport Temperature Statistics View More

September Temperature

Rottnest Island (3km)

Lowest 28 July, 2025
6 °C
Average 2025
19.2 °C
Highest 20 January, 2025
39.2 °C
Lowest 26 August, 2025
7.6 °C
Average August
15 °C
Highest 13 August, 2025
22.4 °C
Lowest 8 September, 2025
8.2 °C
Average September
15.1 °C
Highest 12 September, 2025
22.4 °C

Climate (2020–Present)

Rottnest Island (3km)

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Average Low 2020–2025
16 °C
Average 2020–2025
18.9 °C
Average High 2020–2025
22.8 °C

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