Yes

you do need a jacket based on the weather in Concepción, Bio Bio, Chile 1 second ago

Why? Because it's raining in your area and sorry, it's too cool for just a hoodie and there are strong winds blowing out there!
55°F13°C & Rain

Wind is 11 mph17 km/h from the North, gusting to 25 mph41 km/h
September 19
8pm55°F13°C11 mph18 km/h NorthRain
9pm54°F12°C13 mph21 km/h NorthRain
10pm53°F12°C14 mph22 km/h NorthRain
11pm53°F12°C11 mph18 km/h NorthRain
September 20
12am52°F11°C9 mph15 km/h NorthwestRain
1am52°F11°C7 mph11 km/h NorthwestRain
2am51°F11°C6 mph10 km/h NorthwestDrizzle
3am51°F10°C7 mph11 km/h NorthwestDrizzle
4am50°F10°C8 mph12 km/h NorthDrizzle
5am50°F10°C8 mph12 km/h NorthDrizzle
6am50°F10°C7 mph12 km/h NorthDrizzle
7am50°F10°C8 mph13 km/h NorthDrizzle
DateLowHighWindDayNight
September 1853°F12°C57°F14°C8 mph12 km/h from NorthRainRain
September 1950°F10°C57°F14°C12 mph20 km/h from NorthRainRain
September 2047°F8°C58°F14°C8 mph13 km/h from WestDrizzleMostly Clear
September 2143°F6°C61°F16°C5 mph8 km/h from SouthPartly CloudyMostly Cloudy
September 2247°F8°C63°F17°C5 mph8 km/h from WestMostly ClearMostly Cloudy
September 2347°F8°C67°F19°C6 mph9 km/h from WestPartly CloudyPartly Cloudy
September 2450°F10°C63°F17°C8 mph14 km/h from NorthwestPartly CloudyRain

Yes

Low of 50°F10°C, High of 57°F14°C
Wind: 12 mph20 km/h
Precipitation: 74% rain

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