Duncan Weather Forecast

Today 17 May
- 12
- 17
Partly cloudy
Mon 18 May
- 8
- 18
Morning fog. Shower or two
Tue 19 May
- 10
- 17
Possible shower
Wed 20 May
- 10
- 18
Possible shower
Thu 21 May
- 7
- 18
Partly cloudy
Fri 22 May
- 8
- 17
Partly cloudy
Sat 23 May
- 9
- 18
Shower or two

Today 17 May
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Mon 18 May
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Tue 19 May
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Wed 20 May
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Thu 21 May
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Fri 22 May
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Sat 23 May
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm

Today 17 May Kangaroo Island

Partly cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. Light winds. Daytime maximum temperatures around 18.

Duncan Temperature Statistics View More

May Temperature

Kingscote Airport (35km)

Lowest 18 April, 2026
3.6 °C
Average 2026
17.8 °C
Highest 7 January, 2026
41.5 °C
Lowest 18 April, 2026
3.6 °C
Average April
15.8 °C
Highest 30 April, 2026
27.6 °C
Lowest 14 May, 2026
5.5 °C
Average May
14.8 °C
Highest 1 May, 2026
27.1 °C

Climate (2021–Present)

Kingscote Airport (35km)

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Average Low 2021–2026
9.3 °C
Average 2021–2026
14.8 °C
Average High 2021–2026
21.1 °C

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