Yes

you do need a jacket based on the weather in Taunton, UK 1 second ago

Why? Because it's cool. Pleasantly cool, but cool and it's so windy, you’re practically horizontal just trying to walk!
53°F12°C & Partly Cloudy

Wind is 12 mph20 km/h from the West, gusting to 27 mph44 km/h
September 11
10pm52°F11°C12 mph20 km/h WestDrizzle
11pm52°F11°C10 mph16 km/h SouthwestPartly Cloudy
September 12
12am52°F11°C11 mph18 km/h SouthwestMostly Clear
1am52°F11°C10 mph17 km/h SouthwestPartly Cloudy
2am52°F11°C10 mph16 km/h SouthwestMostly Clear
3am53°F12°C11 mph17 km/h SouthwestPartly Cloudy
4am55°F13°C13 mph21 km/h SouthwestMostly Clear
5am57°F14°C12 mph20 km/h SouthwestMostly Cloudy
6am59°F15°C15 mph24 km/h SouthwestWindy
7am60°F16°C15 mph25 km/h SouthwestWindy
8am61°F16°C16 mph26 km/h WestWindy
9am62°F17°C15 mph24 km/h WestWindy
DateLowHighWindDayNight
September 1152°F11°C62°F17°C13 mph22 km/h from SouthwestDrizzleDrizzle
September 1251°F11°C62°F17°C13 mph20 km/h from WestDrizzleDrizzle
September 1348°F9°C67°F20°C15 mph24 km/h from SouthRainDrizzle
September 1455°F13°C64°F18°C23 mph37 km/h from WestDrizzleWindy
September 1553°F12°C62°F17°C14 mph23 km/h from WestMostly CloudyRain
September 1654°F12°C65°F18°C19 mph30 km/h from SouthwestDrizzleWindy
September 1752°F11°C64°F18°C13 mph21 km/h from WestMostly CloudyMostly Cloudy

Yes

Low of 51°F11°C, High of 62°F17°C
Wind: 13 mph20 km/h
Precipitation: 65% rain

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