Yes

you do need a jacket based on the weather in Corrimal NSW 2518, Australia 1 second ago

Why? Because it's not very warm out!
53°F12°C & Partly Cloudy

Wind is 2 mph3 km/h from the West, gusting to 4 mph7 km/h
November 9
7pm53°F12°C2 mph3 km/h NorthwestPartly Cloudy
8pm55°F13°C2 mph4 km/h WestMostly Clear
9pm59°F15°C2 mph4 km/h NorthPartly Cloudy
10pm61°F16°C4 mph6 km/h NortheastPartly Cloudy
11pm64°F18°C5 mph8 km/h NortheastPartly Cloudy
November 10
12am66°F19°C5 mph7 km/h NortheastMostly Clear
1am68°F20°C7 mph11 km/h NortheastMostly Clear
2am70°F21°C9 mph14 km/h EastMostly Clear
3am70°F21°C10 mph15 km/h EastMostly Clear
4am70°F21°C11 mph17 km/h EastMostly Clear
5am70°F21°C11 mph17 km/h EastMostly Clear
6am69°F21°C10 mph17 km/h NortheastClear
DateLowHighWindDayNight
November 953°F12°C70°F21°C7 mph12 km/h from NortheastMostly ClearMostly Clear
November 1051°F10°C76°F24°C11 mph18 km/h from WestMostly ClearClear
November 1147°F8°C70°F21°C6 mph10 km/h from SoutheastClearClear
November 1250°F10°C81°F27°C6 mph9 km/h from NorthPartly CloudyMostly Cloudy
November 1359°F15°C73°F23°C6 mph9 km/h from SoutheastRainPartly Cloudy
November 1462°F17°C80°F27°C7 mph12 km/h from NorthwestPartly CloudyPartly Cloudy
November 1558°F15°C77°F25°C5 mph9 km/h from EastPartly CloudyMostly Clear

Yes

Low of 51°F11°C, High of 76°F25°C
Wind: 11 mph18 km/h
Precipitation: None

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