Yes

you do need a jacket based on the weather in Gdańsk, Poland 1 second ago

Why? Because it's raining in your area and it's cold enough that makes you wish you had a hat, but you're still too proud to admit it!
44°F7°C & Rain

Wind is 5 mph8 km/h from the South, gusting to 11 mph18 km/h
October 28
9pm44°F7°C5 mph7 km/h SouthRain
10pm44°F7°C5 mph7 km/h SouthwestDrizzle
11pm44°F7°C6 mph10 km/h WestPartly Cloudy
October 29
12am44°F6°C8 mph12 km/h WestPartly Cloudy
1am44°F6°C8 mph13 km/h WestMostly Clear
2am43°F6°C8 mph14 km/h WestPartly Cloudy
3am44°F6°C8 mph14 km/h SouthwestPartly Cloudy
4am44°F7°C9 mph14 km/h SouthwestMostly Cloudy
5am45°F7°C10 mph16 km/h SouthwestMostly Cloudy
6am46°F8°C12 mph19 km/h SouthwestDrizzle
7am48°F9°C13 mph21 km/h SouthwestMostly Cloudy
8am49°F9°C14 mph23 km/h SouthwestMostly Cloudy
DateLowHighWindDayNight
October 2744°F7°C52°F11°C13 mph21 km/h from WestDrizzleRain
October 2843°F6°C53°F12°C12 mph19 km/h from SouthwestDrizzleCloudy
October 2945°F7°C51°F11°C13 mph21 km/h from SouthwestRainWindy
October 3041°F5°C53°F12°C11 mph18 km/h from WestMostly CloudyMostly Cloudy
October 3139°F4°C52°F11°C8 mph12 km/h from SouthMostly CloudyDrizzle
November 146°F8°C55°F13°C5 mph8 km/h from SouthwestDrizzleRain
November 245°F7°C51°F11°C9 mph15 km/h from WestRainMostly Cloudy

Yes

Low of 43°F6°C, High of 53°F12°C
Wind: 12 mph19 km/h
Precipitation: 59% rain

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