Yes

you do need a jacket based on the weather in Calella, Barcelona, Spain 1 second ago

Why? Because it's windy enough to give you a brand new hairdo!
60°F15°C & Mostly Clear

Wind is 12 mph20 km/h from the Southwest, gusting to 22 mph35 km/h
November 23
12pm59°F15°C13 mph20 km/h SouthwestMostly Clear
1pm58°F14°C11 mph18 km/h SouthwestMostly Clear
2pm57°F14°C10 mph16 km/h SouthwestPartly Cloudy
3pm57°F14°C10 mph15 km/h SouthwestPartly Cloudy
4pm56°F14°C9 mph14 km/h SouthwestPartly Cloudy
5pm57°F14°C8 mph14 km/h SouthwestMostly Cloudy
6pm57°F14°C8 mph13 km/h SouthwestMostly Cloudy
7pm57°F14°C8 mph12 km/h SouthwestMostly Cloudy
8pm58°F14°C8 mph13 km/h SouthwestMostly Cloudy
9pm58°F14°C9 mph15 km/h SouthwestCloudy
10pm58°F15°C9 mph14 km/h SouthwestMostly Cloudy
11pm58°F15°C9 mph14 km/h SouthwestCloudy
DateLowHighWindDayNight
November 2248°F9°C63°F17°C10 mph16 km/h from SouthwestMostly ClearMostly Cloudy
November 2356°F13°C65°F19°C6 mph10 km/h from SouthwestPartly CloudyPartly Cloudy
November 2455°F13°C67°F19°C7 mph12 km/h from SouthwestMostly CloudyPartly Cloudy
November 2550°F10°C62°F17°C4 mph7 km/h from SouthwestMostly CloudyMostly Cloudy
November 2645°F7°C63°F17°C3 mph5 km/h from NorthwestMostly ClearClear
November 2745°F7°C66°F19°C5 mph8 km/h from SouthwestClearClear
November 2848°F9°C67°F19°C5 mph9 km/h from SouthwestMostly ClearMostly Clear

Yes

Low of 56°F14°C, High of 65°F19°C
Wind: 6 mph10 km/h
Precipitation: None

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