Yes

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

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
55°F13°C & Mostly Cloudy

Wind is 8 mph13 km/h from the Southwest, gusting to 18 mph29 km/h
September 13
3am55°F13°C9 mph14 km/h SouthwestDrizzle
4am57°F14°C10 mph16 km/h SouthwestDrizzle
5am59°F15°C11 mph18 km/h SouthwestMostly Cloudy
6am60°F16°C10 mph17 km/h SouthwestPartly Cloudy
7am63°F17°C11 mph17 km/h SouthwestMostly Cloudy
8am63°F17°C11 mph18 km/h SouthwestPartly Cloudy
9am65°F18°C13 mph21 km/h SouthwestRain
10am63°F17°C11 mph17 km/h WestPartly Cloudy
11am63°F17°C11 mph18 km/h WestMostly Cloudy
12pm62°F17°C11 mph18 km/h WestPartly Cloudy
1pm61°F16°C10 mph16 km/h WestPartly Cloudy
2pm60°F16°C9 mph14 km/h WestClear
DateLowHighWindDayNight
September 1254°F12°C65°F18°C11 mph17 km/h from SouthwestRainMostly Clear
September 1351°F10°C67°F19°C10 mph16 km/h from SouthRainRain
September 1455°F13°C65°F18°C17 mph28 km/h from SouthwestWindyMostly Clear
September 1553°F11°C65°F19°C12 mph19 km/h from WestMostly CloudyDrizzle
September 1655°F13°C68°F20°C15 mph24 km/h from SouthwestDrizzleMostly Cloudy
September 1754°F12°C68°F20°C9 mph15 km/h from WestMostly ClearMostly Clear
September 1849°F9°C67°F20°C5 mph8 km/h from SouthwestPartly CloudyMostly Cloudy

Yes

Low of 51°F11°C, High of 67°F20°C
Wind: 10 mph16 km/h
Precipitation: 66% rain

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