Yes

you do need a jacket based on the weather in Heather Gardens, Belton, Great Yarmouth NR31 9PP, UK 1 second ago

Why? Because it's cold. simple as that.
42°F6°C & Windy

Wind is 17 mph27 km/h from the N, gusting to 29 mph47 km/h
April 20
3am43°F6°C18 mph29 km/h NWindy
4am44°F7°C18 mph29 km/h NWindy
5am46°F8°C19 mph30 km/h NWindy
6am47°F8°C19 mph30 km/h NWindy
7am47°F8°C18 mph30 km/h NWindy
8am48°F9°C19 mph31 km/h NWindy
9am49°F9°C18 mph30 km/h NWindy
10am49°F9°C18 mph30 km/h NWindy
11am48°F9°C18 mph29 km/h NWindy
12pm47°F9°C17 mph28 km/h NWindy
1pm46°F8°C16 mph26 km/h NWindy
2pm45°F7°C15 mph24 km/h NWindy
DateLowHighWindDayNight
April 1940°F5°C49°F9°C18 mph29 km/h from NWindyMostly Cloudy
April 2040°F5°C51°F10°C16 mph26 km/h from NEWindyPartly Cloudy
April 2140°F4°C49°F10°C8 mph13 km/h from NCloudyDrizzle
April 2240°F5°C49°F10°C13 mph21 km/h from NMostly CloudyMostly Cloudy
April 2340°F5°C50°F10°C10 mph16 km/h from NMostly CloudyPartly Cloudy
April 2440°F5°C50°F10°C9 mph14 km/h from NWDrizzleMostly Cloudy
April 2541°F5°C52°F11°C6 mph10 km/h from SMostly CloudyCloudy

Yes

Low of 40°F5°C, High of 51°F11°C
Wind: 16 mph26 km/h
Precipitation: None

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