Yes

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

Why? Because it's pretty chilly!
59°F15°C & Partly Cloudy

Wind is 1 mph2 km/h from the Southeast, gusting to 4 mph7 km/h
April 28
5am62°F16°C2 mph3 km/h SoutheastPartly Cloudy
6am64°F18°C3 mph4 km/h SoutheastPartly Cloudy
7am66°F19°C4 mph6 km/h SoutheastPartly Cloudy
8am67°F20°C4 mph7 km/h SoutheastPartly Cloudy
9am68°F20°C4 mph7 km/h SoutheastPartly Cloudy
10am69°F21°C4 mph7 km/h SoutheastPartly Cloudy
11am70°F21°C4 mph7 km/h SoutheastMostly Clear
12pm70°F21°C5 mph7 km/h SoutheastMostly Clear
1pm69°F21°C5 mph8 km/h SoutheastMostly Clear
2pm68°F20°C5 mph8 km/h SouthMostly Clear
3pm64°F18°C5 mph8 km/h SouthClear
4pm60°F16°C4 mph6 km/h SoutheastClear
DateLowHighWindDayNight
April 2743°F6°C70°F21°C3 mph5 km/h from SoutheastPartly CloudyClear
April 2846°F8°C73°F23°C6 mph10 km/h from EastClearClear
April 2947°F8°C77°F25°C5 mph8 km/h from SoutheastClearClear
April 3052°F11°C77°F25°C7 mph11 km/h from SouthMostly ClearPartly Cloudy
May 156°F13°C72°F22°C4 mph7 km/h from NorthPartly CloudyPartly Cloudy
May 253°F11°C68°F20°C9 mph15 km/h from NortheastPartly CloudyPartly Cloudy
May 348°F9°C63°F17°C11 mph17 km/h from NortheastDrizzlePartly Cloudy

Yes

Low of 46°F8°C, High of 73°F23°C
Wind: 6 mph10 km/h
Precipitation: None

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