Dee Why Weather Forecast

Today 17 May
- 16
- 21
Shower or two
Mon 18 May
- 16
- 21
Rain
Tue 19 May
- 17
- 19
Showers
Wed 20 May
- 14
- 19
Mostly sunny
Thu 21 May
- 13
- 19
Shower or two
Fri 22 May
- 14
- 19
Shower or two
Sat 23 May
- 15
- 20
Shower or two

Today 17 May
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 18 May
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 19 May
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 20 May
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 21 May
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 22 May
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 23 May
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 17 May Sydney

Partly cloudy. Medium chance of showers, becoming less likely this morning. The chance of morning fog in the outer west. Light winds.

Dee Why Temperature Statistics View More

May Temperature

Terrey Hills (8km)

Lowest 8 May, 2026
6.5 °C
Average 2026
19.9 °C
Highest 10 January, 2026
40.5 °C
Lowest 19 April, 2026
9 °C
Average April
17.7 °C
Highest 7 April, 2026
29.4 °C
Lowest 8 May, 2026
6.5 °C
Average May
16.1 °C
Highest 3 May, 2026
23.7 °C

Climate (2021–Present)

Terrey Hills (8km)

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Average Low 2021–2026
13.4 °C
Average 2021–2026
17 °C
Average High 2021–2026
21.9 °C

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