Yes

you do need a jacket based on the weather in Cherbourg-Octeville, France 1 second ago

Why? Because it's on the windy side!
59°F15°C & Cloudy

Wind is 11 mph18 km/h from the South, gusting to 20 mph32 km/h
November 6
4am59°F15°C11 mph18 km/h SouthCloudy
5am59°F15°C12 mph20 km/h SouthCloudy
6am59°F15°C12 mph20 km/h SouthCloudy
7am58°F15°C12 mph20 km/h SouthCloudy
8am58°F15°C13 mph21 km/h SoutheastCloudy
9am59°F15°C13 mph21 km/h SouthCloudy
10am60°F16°C14 mph23 km/h SouthCloudy
11am60°F16°C13 mph21 km/h SouthCloudy
12pm61°F16°C12 mph19 km/h SouthCloudy
1pm61°F16°C10 mph17 km/h SouthMostly Cloudy
2pm61°F16°C9 mph14 km/h SouthMostly Cloudy
3pm60°F16°C7 mph11 km/h SouthMostly Cloudy
DateLowHighWindDayNight
November 554°F12°C61°F16°C10 mph16 km/h from SouthMostly CloudyPartly Cloudy
November 653°F11°C57°F14°C16 mph26 km/h from SouthRainMostly Cloudy
November 751°F11°C57°F14°C9 mph14 km/h from SouthwestPartly CloudyPartly Cloudy
November 851°F11°C58°F14°C13 mph21 km/h from SouthMostly CloudyDrizzle
November 951°F11°C56°F13°C11 mph18 km/h from SouthRainDrizzle
November 1048°F9°C56°F13°C10 mph16 km/h from SouthPartly CloudyPartly Cloudy
November 1148°F9°C54°F12°C14 mph23 km/h from SoutheastThunderstormsMostly Cloudy

Yes

Low of 53°F12°C, High of 57°F14°C
Wind: 16 mph26 km/h
Precipitation: 66% rain

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