Yes

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

Why? Because it's so gusty, you’re basically doing accidental parkour!
67°F19°C & Mostly Clear

Wind is 11 mph18 km/h from the South, gusting to 25 mph40 km/h
May 25
12pm67°F19°C11 mph18 km/h SouthMostly Clear
1pm65°F19°C10 mph15 km/h SouthMostly Clear
2pm63°F17°C8 mph13 km/h SouthPartly Cloudy
3pm60°F16°C7 mph12 km/h SouthPartly Cloudy
4pm58°F14°C7 mph12 km/h SouthPartly Cloudy
5pm56°F13°C7 mph12 km/h SouthPartly Cloudy
6pm55°F13°C7 mph11 km/h SouthMostly Cloudy
7pm54°F12°C6 mph10 km/h SouthCloudy
8pm53°F12°C6 mph9 km/h SouthCloudy
9pm53°F12°C5 mph8 km/h SouthCloudy
10pm52°F11°C5 mph8 km/h SouthCloudy
11pm52°F11°C5 mph8 km/h SouthCloudy
DateLowHighWindDayNight
May 2441°F5°C67°F19°C11 mph17 km/h from SouthMostly ClearDrizzle
May 2549°F10°C63°F17°C7 mph11 km/h from NorthwestRainClear
May 2646°F8°C69°F21°C6 mph10 km/h from SouthwestPartly CloudyMostly Cloudy
May 2753°F12°C66°F19°C10 mph16 km/h from SouthDrizzleDrizzle
May 2850°F10°C62°F17°C14 mph23 km/h from NorthwestPartly CloudyMostly Clear
May 2948°F9°C63°F17°C8 mph13 km/h from WestMostly CloudyRain
May 3051°F10°C61°F16°C10 mph16 km/h from NorthwestMostly CloudyMostly Clear

Yes

Low of 49°F10°C, High of 63°F17°C
Wind: 7 mph11 km/h
Precipitation: 60% rain

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