Yes

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

Why? Because it's bitterly cold.
44°F7°C & Heavy Rain

Wind is 9 mph15 km/h from the NE, gusting to 21 mph34 km/h
April 27
12am44°F7°C9 mph15 km/h NERain
1am44°F6°C9 mph15 km/h NEDrizzle
2am44°F6°C9 mph15 km/h NECloudy
3am44°F7°C9 mph15 km/h NECloudy
4am45°F7°C9 mph14 km/h NECloudy
5am47°F9°C9 mph15 km/h NECloudy
6am50°F10°C8 mph13 km/h NECloudy
7am52°F11°C7 mph11 km/h NECloudy
8am55°F13°C5 mph9 km/h NECloudy
9am58°F14°C5 mph8 km/h ECloudy
10am58°F14°C5 mph9 km/h ECloudy
11am58°F15°C6 mph9 km/h ECloudy
DateLowHighWindDayNight
April 2644°F6°C58°F15°C7 mph11 km/h from NERainRain
April 2746°F8°C53°F12°C10 mph16 km/h from WDrizzleMostly Clear
April 2842°F6°C60°F16°C10 mph16 km/h from SPartly CloudyMostly Clear
April 2947°F8°C65°F18°C9 mph15 km/h from SEMostly CloudyMostly Cloudy
April 3050°F10°C65°F18°C5 mph8 km/h from SEMostly CloudyMostly Cloudy
May 150°F10°C63°F17°C8 mph13 km/h from NWDrizzleMostly Cloudy
May 249°F10°C66°F19°C9 mph14 km/h from NWPartly CloudyMostly Cloudy

Yes

Low of 46°F8°C, High of 53°F12°C
Wind: 10 mph16 km/h
Precipitation: 65% rain

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