Yes

you do need a jacket based on the weather in Engadine NSW 2233, Australia 1 second ago

Why? Because it's cool. Pleasantly cool, but cool!
54°F12°C & Clear

Wind is 7 mph11 km/h from the West, gusting to 14 mph22 km/h
August 28
6am52°F11°C5 mph7 km/h NorthClear
7am51°F10°C5 mph8 km/h NorthClear
8am50°F10°C5 mph8 km/h NorthwestClear
9am49°F9°C5 mph9 km/h NorthwestClear
10am48°F9°C5 mph8 km/h NorthwestClear
11am47°F8°C4 mph7 km/h NorthwestClear
12pm46°F8°C4 mph6 km/h NorthwestClear
1pm46°F8°C4 mph6 km/h NorthwestClear
2pm45°F7°C3 mph5 km/h NorthwestClear
3pm44°F7°C3 mph5 km/h NorthwestClear
4pm45°F7°C3 mph5 km/h NorthwestClear
5pm46°F8°C4 mph7 km/h NorthwestMostly Clear
DateLowHighWindDayNight
August 2748°F9°C64°F18°C13 mph21 km/h from WestClearClear
August 2844°F7°C65°F18°C10 mph17 km/h from NorthwestMostly ClearMostly Clear
August 2944°F7°C59°F15°C14 mph22 km/h from SouthwestPartly CloudyClear
August 3041°F5°C64°F18°C4 mph7 km/h from NorthwestClearClear
August 3144°F7°C65°F18°C4 mph7 km/h from WestClearPartly Cloudy
September 147°F8°C64°F18°C3 mph5 km/h from SouthwestPartly CloudyClear
September 246°F8°C66°F19°C7 mph11 km/h from WestMostly ClearMostly Clear

Yes

Low of 45°F7°C, High of 65°F19°C
Wind: 10 mph17 km/h
Precipitation: None

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