Yes

you do need a jacket based on the weather in Covent Garden, London WC2E 8RF, UK 1 second ago

Why? Because it's cold. simple as that.
48°F9°C & Mostly Cloudy

Wind is 12 mph20 km/h from the SW, gusting to 30 mph49 km/h
March 28
9pm47°F8°C12 mph19 km/h SWDrizzle
10pm47°F8°C11 mph18 km/h SWCloudy
11pm47°F8°C11 mph18 km/h SCloudy
March 29
12am46°F8°C12 mph19 km/h SWCloudy
1am45°F7°C12 mph19 km/h SDrizzle
2am46°F8°C12 mph19 km/h SMostly Cloudy
3am47°F8°C12 mph20 km/h SMostly Cloudy
4am48°F9°C13 mph22 km/h SMostly Cloudy
5am49°F9°C14 mph23 km/h SMostly Cloudy
6am50°F10°C15 mph24 km/h SWMostly Cloudy
7am52°F11°C15 mph24 km/h SWWindy
8am53°F12°C16 mph25 km/h SWWindy
DateLowHighWindDayNight
March 2845°F7°C56°F13°C14 mph22 km/h from SWDrizzleMostly Cloudy
March 2943°F6°C57°F14°C3 mph4 km/h from SWMostly CloudyMostly Clear
March 3041°F5°C58°F15°C10 mph16 km/h from EMostly CloudyRain
March 3145°F7°C52°F11°C8 mph13 km/h from NWRainDrizzle
April 142°F6°C56°F14°C6 mph10 km/h from SWMostly CloudyDrizzle
April 248°F9°C58°F14°C13 mph21 km/h from SWMostly CloudyRain
April 343°F6°C54°F12°C10 mph16 km/h from SWCloudyCloudy

Yes

Low of 43°F6°C, High of 57°F14°C
Wind: 3 mph4 km/h
Precipitation: None

Support This Page