Yes

you do need a jacket based on the weather in Long Ashton, Bristol BS41, UK 26 minutes ago

Why? Because a jacket will keep you cozy, but you won't break a seat and it's on the windy side!
55°F13°C & Cloudy

Wind is 9 mph15 km/h from the South, gusting to 22 mph35 km/h
September 16
11pm56°F13°C12 mph20 km/h SouthRain
September 17
12am57°F14°C16 mph25 km/h SouthDrizzle
1am58°F15°C18 mph28 km/h SouthDrizzle
2am59°F15°C18 mph29 km/h SouthwestDrizzle
3am60°F16°C17 mph27 km/h SouthwestDrizzle
4am61°F16°C16 mph26 km/h SouthwestDrizzle
5am63°F17°C16 mph26 km/h SouthwestDrizzle
6am64°F18°C16 mph25 km/h SouthwestDrizzle
7am65°F19°C15 mph24 km/h SouthwestDrizzle
8am66°F19°C14 mph23 km/h SouthwestDrizzle
9am67°F19°C14 mph22 km/h SouthwestDrizzle
10am67°F20°C14 mph22 km/h SouthwestDrizzle
DateLowHighWindDayNight
September 1655°F13°C67°F20°C15 mph24 km/h from SouthwestDrizzleDrizzle
September 1762°F16°C71°F21°C13 mph22 km/h from SouthwestDrizzleMostly Cloudy
September 1859°F15°C72°F22°C8 mph14 km/h from SouthwestMostly CloudyDrizzle
September 1957°F14°C67°F19°C8 mph12 km/h from SouthDrizzleRain
September 2049°F9°C59°F15°C10 mph16 km/h from EastDrizzleRain
September 2146°F8°C59°F15°C14 mph22 km/h from NortheastRainDrizzle
September 2248°F9°C61°F16°C9 mph15 km/h from NortheastDrizzleMostly Cloudy

No

Low of 62°F17°C, High of 71°F22°C
Wind: 13 mph22 km/h
Precipitation: 32% rain

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