Yes

you do need a jacket based on the weather in Sutherland NSW 2232, Australia 1 second ago

Why? Because it's cool. Pleasantly cool, but cool.
51°F10°C & Partly Cloudy

Wind is 4 mph7 km/h from the NW, gusting to 9 mph14 km/h
September 20
12pm51°F10°C5 mph8 km/h NWPartly Cloudy
1pm50°F10°C5 mph8 km/h NWMostly Clear
2pm49°F10°C5 mph8 km/h NWClear
3pm49°F9°C3 mph5 km/h NWClear
4pm48°F9°C3 mph5 km/h NWClear
5pm51°F11°C3 mph5 km/h WClear
6pm57°F14°C4 mph6 km/h NWClear
7pm61°F16°C6 mph9 km/h NWClear
8pm64°F18°C7 mph12 km/h NWMostly Clear
9pm68°F20°C8 mph12 km/h WMostly Clear
10pm70°F21°C8 mph12 km/h WMostly Clear
11pm71°F22°C8 mph13 km/h WMostly Clear
DateLowHighWindDayNight
September 2048°F9°C72°F22°C8 mph13 km/h from WMostly ClearClear
September 2147°F8°C74°F23°C8 mph12 km/h from WMostly ClearClear
September 2248°F9°C79°F26°C6 mph9 km/h from NWClearPartly Cloudy
September 2354°F12°C76°F24°C6 mph10 km/h from NEMostly CloudyMostly Cloudy
September 2458°F14°C80°F27°C11 mph17 km/h from NWCloudyRain
September 2551°F11°C61°F16°C12 mph19 km/h from SDrizzleMostly Cloudy
September 2650°F10°C65°F18°C8 mph12 km/h from EMostly CloudyMostly Cloudy

Yes

Low of 47°F9°C, High of 74°F24°C
Wind: 8 mph12 km/h
Precipitation: None

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