Yes

you do need a jacket based on the weather in Buenos Aires, Argentina 1 second ago

Why? Because sorry, it's too cool for just a hoodie and it's so windy, your hat is now someone else's problem, two cities away!
52°F11°C & Mostly Cloudy

Wind is 14 mph22 km/h from the Southeast, gusting to 27 mph43 km/h
October 27
6am52°F11°C14 mph22 km/h SoutheastMostly Cloudy
7am50°F10°C13 mph21 km/h SouthCloudy
8am49°F10°C13 mph20 km/h SouthCloudy
9am49°F9°C12 mph20 km/h SouthCloudy
10am49°F10°C12 mph19 km/h SouthCloudy
11am50°F10°C11 mph18 km/h SouthCloudy
12pm52°F11°C11 mph17 km/h SouthCloudy
1pm53°F12°C11 mph17 km/h SouthCloudy
2pm55°F13°C10 mph17 km/h SouthCloudy
3pm57°F14°C11 mph18 km/h SouthCloudy
4pm58°F14°C11 mph18 km/h SouthCloudy
5pm59°F15°C11 mph18 km/h SouthCloudy
DateLowHighWindDayNight
October 2749°F9°C62°F16°C11 mph18 km/h from SouthCloudyCloudy
October 2845°F7°C62°F17°C10 mph16 km/h from SoutheastMostly CloudyMostly Clear
October 2947°F8°C64°F18°C10 mph16 km/h from EastPartly CloudyPartly Cloudy
October 3053°F12°C66°F19°C9 mph14 km/h from EastMostly CloudyMostly Clear
October 3155°F13°C71°F22°C9 mph15 km/h from NortheastMostly ClearPartly Cloudy
November 159°F15°C76°F25°C7 mph11 km/h from NorthPartly CloudyMostly Cloudy
November 258°F15°C71°F21°C8 mph13 km/h from SoutheastPartly CloudyMostly Clear

Yes

Low of 46°F8°C, High of 63°F17°C
Wind: 10 mph16 km/h
Precipitation: None

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