Yes

you do need a jacket based on the weather in Bordeaux, France 1 second ago

Why? Because it's cool. Pleasantly cool, but cool.
56°F13°C & Cloudy

Wind is 9 mph14 km/h from the W, gusting to 20 mph32 km/h
April 25
12pm56°F13°C9 mph14 km/h WCloudy
1pm55°F13°C8 mph12 km/h WCloudy
2pm53°F12°C7 mph10 km/h WCloudy
3pm52°F11°C5 mph9 km/h WCloudy
4pm51°F11°C5 mph7 km/h SWCloudy
5pm51°F10°C4 mph7 km/h SWDrizzle
6pm50°F10°C4 mph7 km/h SWDrizzle
7pm50°F10°C4 mph7 km/h SWDrizzle
8pm49°F10°C4 mph7 km/h SWDrizzle
9pm49°F9°C4 mph6 km/h SWCloudy
10pm48°F9°C4 mph6 km/h SWCloudy
11pm48°F9°C4 mph7 km/h SMostly Cloudy
DateLowHighWindDayNight
April 2446°F8°C59°F15°C7 mph12 km/h from WCloudyDrizzle
April 2547°F8°C62°F17°C8 mph13 km/h from SWCloudyRain
April 2649°F10°C64°F18°C10 mph16 km/h from SRainPartly Cloudy
April 2744°F7°C65°F18°C6 mph9 km/h from SWPartly CloudyMostly Cloudy
April 2846°F8°C65°F18°C4 mph6 km/h from NCloudyDrizzle
April 2948°F9°C66°F19°C5 mph8 km/h from SPartly CloudyPartly Cloudy
April 3050°F10°C66°F19°C5 mph9 km/h from NMostly CloudyThunderstorms

Yes

Low of 47°F9°C, High of 62°F17°C
Wind: 8 mph13 km/h
Precipitation: 56% rain

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