No
you don't need a jacket based on the weather in Dee Why NSW 2099, Australia 1 second ago
71°F22°C & Mostly Clear
Wind is 2 mph4 km/h from the South, gusting to 6 mph9 km/h
| December 15 | ||||
| 1pm | 71°F22°C | 2 mph4 km/h South | Mostly Cloudy | |
| 2pm | 71°F22°C | 2 mph3 km/h South | Mostly Cloudy | |
| 3pm | 72°F22°C | 1 mph2 km/h East | Mostly Cloudy | |
| 4pm | 74°F23°C | 2 mph4 km/h Northeast | Partly Cloudy | |
| 5pm | 76°F24°C | 4 mph6 km/h Northeast | Partly Cloudy | |
| 6pm | 78°F26°C | 6 mph9 km/h Northeast | Mostly Clear | |
| 7pm | 80°F27°C | 8 mph12 km/h Northeast | Mostly Clear | |
| 8pm | 81°F27°C | 9 mph15 km/h Northeast | Mostly Clear | |
| 9pm | 81°F27°C | 11 mph17 km/h Northeast | Mostly Clear | |
| 10pm | 82°F28°C | 13 mph21 km/h Northeast | Clear | |
| 11pm | 82°F28°C | 14 mph22 km/h Northeast | Clear | |
| December 16 | ||||
| 12am | 81°F27°C | 15 mph24 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 15 | 71°F22°C | 82°F28°C | 10 mph16 km/h from Northeast | Mostly Clear | Clear |
| December 16 | 68°F20°C | 92°F33°C | 11 mph17 km/h from Northeast | Mostly Clear | Windy |
| December 17 | 65°F18°C | 72°F22°C | 16 mph26 km/h from South | Windy | Partly Cloudy |
| December 18 | 63°F17°C | 73°F23°C | 10 mph17 km/h from Southeast | Partly Cloudy | Mostly Clear |
| December 19 | 59°F15°C | 75°F24°C | 8 mph13 km/h from Southeast | Mostly Clear | Clear |
| December 20 | 60°F16°C | 81°F27°C | 8 mph13 km/h from Northeast | Clear | Mostly Clear |
| December 21 | 65°F19°C | 81°F27°C | 12 mph19 km/h from Northeast | Mostly Clear | Mostly Cloudy |
No
Low of 68°F20°C, High of 91°F33°CWind: 11 mph17 km/h
Precipitation: None