Yes

you do need a jacket based on the weather in Guarulhos - State of São Paulo, Brazil 1 second ago

Why? Because it's so windy, your hat is now someone else's problem, two cities away!
72°F22°C & Cloudy

Wind is 7 mph11 km/h from the Northwest, gusting to 27 mph43 km/h
November 8
5am72°F22°C9 mph14 km/h NorthwestCloudy
6am72°F22°C12 mph19 km/h NorthwestDrizzle
7am70°F21°C12 mph19 km/h NorthwestDrizzle
8am68°F20°C10 mph17 km/h NorthwestRain
9am67°F19°C10 mph17 km/h NorthwestHeavy Rain
10am68°F20°C11 mph18 km/h NorthwestDrizzle
11am69°F21°C13 mph21 km/h NorthwestDrizzle
12pm73°F23°C15 mph24 km/h NorthwestCloudy
1pm75°F24°C14 mph23 km/h NorthwestCloudy
2pm78°F26°C15 mph24 km/h NorthwestCloudy
3pm80°F27°C16 mph27 km/h NorthwestWindy
4pm82°F28°C16 mph26 km/h NorthwestWindy
DateLowHighWindDayNight
November 862°F16°C85°F29°C13 mph22 km/h from NorthwestRainDrizzle
November 957°F14°C71°F22°C9 mph14 km/h from SoutheastMostly CloudyMostly Cloudy
November 1055°F13°C75°F24°C9 mph14 km/h from SoutheastMostly ClearPartly Cloudy
November 1154°F12°C80°F26°C7 mph11 km/h from SoutheastMostly ClearMostly Clear
November 1256°F13°C85°F29°C4 mph6 km/h from SouthPartly CloudyCloudy
November 1363°F17°C80°F26°C4 mph6 km/h from WestCloudyCloudy
November 1462°F17°C77°F25°C5 mph8 km/h from SoutheastCloudyCloudy

Yes

Low of 57°F14°C, High of 72°F22°C
Wind: 9 mph14 km/h
Precipitation: None

Support This Page