Yes

you do need a jacket based on the weather in Poringland, Norwich NR14, UK 1 second ago

Why? Because it's pretty chilly.
50°F10°C & Clear

Wind is 9 mph14 km/h from the S, gusting to 19 mph30 km/h
April 29
5pm50°F10°C8 mph14 km/h SClear
6pm48°F9°C8 mph13 km/h SClear
7pm47°F8°C8 mph13 km/h SClear
8pm46°F8°C8 mph12 km/h SClear
9pm45°F7°C7 mph12 km/h SEClear
10pm44°F7°C7 mph11 km/h SEClear
11pm43°F6°C7 mph11 km/h SEClear
April 30
12am44°F7°C7 mph11 km/h SEClear
1am45°F7°C7 mph11 km/h SEMostly Clear
2am48°F9°C7 mph11 km/h SEMostly Cloudy
3am52°F11°C8 mph12 km/h SEPartly Cloudy
4am57°F14°C9 mph14 km/h SEMostly Cloudy
DateLowHighWindDayNight
April 2840°F5°C61°F16°C15 mph24 km/h from SWindyClear
April 2943°F6°C63°F17°C11 mph17 km/h from SEMostly CloudyRain
April 3050°F10°C65°F19°C7 mph12 km/h from NRainMostly Cloudy
May 150°F10°C66°F19°C10 mph16 km/h from NEPartly CloudyMostly Cloudy
May 249°F9°C64°F18°C10 mph16 km/h from WDrizzleMostly Cloudy
May 347°F8°C63°F17°C10 mph16 km/h from SWCloudyDrizzle
May 450°F10°C63°F17°C11 mph18 km/h from SWDrizzleMostly Cloudy

Yes

Low of 44°F7°C, High of 63°F17°C
Wind: 11 mph17 km/h
Precipitation: 19% rain

Support This Page