Yes

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

Why? Because the wind makes walking forward feel like moonwalking in reverse!
77°F25°C & Mostly Clear

Wind is 14 mph23 km/h from the Northeast, gusting to 29 mph47 km/h
November 23
3am75°F24°C14 mph22 km/h NortheastPartly Cloudy
4am73°F23°C13 mph21 km/h NortheastPartly Cloudy
5am71°F22°C12 mph19 km/h NortheastMostly Cloudy
6am70°F21°C10 mph17 km/h NortheastMostly Cloudy
7am69°F21°C10 mph16 km/h NortheastMostly Cloudy
8am69°F20°C7 mph12 km/h NorthMostly Cloudy
9am68°F20°C6 mph10 km/h NorthMostly Cloudy
10am68°F20°C6 mph10 km/h NortheastPartly Cloudy
11am67°F19°C6 mph9 km/h NortheastPartly Cloudy
12pm66°F19°C6 mph9 km/h NortheastMostly Clear
1pm66°F19°C6 mph9 km/h NortheastMostly Clear
2pm66°F19°C6 mph9 km/h NortheastPartly Cloudy
DateLowHighWindDayNight
November 2264°F18°C80°F27°C10 mph16 km/h from NortheastClearPartly Cloudy
November 2366°F19°C83°F28°C11 mph18 km/h from NortheastPartly CloudyMostly Cloudy
November 2466°F19°C82°F28°C11 mph18 km/h from NortheastPartly CloudyMostly Cloudy
November 2568°F20°C86°F30°C10 mph16 km/h from NortheastMostly CloudyPartly Cloudy
November 2671°F22°C91°F33°C8 mph12 km/h from NortheastPartly CloudyDrizzle
November 2767°F19°C79°F26°C12 mph19 km/h from SouthDrizzleDrizzle
November 2865°F18°C73°F23°C12 mph20 km/h from SoutheastRainRain

No

Low of 66°F19°C, High of 83°F29°C
Wind: 11 mph18 km/h
Precipitation: None

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