Yes

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

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
55°F13°C & Clear

Wind is 4 mph7 km/h from the East, gusting to 10 mph16 km/h
April 28
8pm54°F12°C4 mph7 km/h EastMostly Clear
9pm52°F11°C4 mph7 km/h EastMostly Clear
10pm51°F11°C4 mph7 km/h EastMostly Clear
11pm50°F10°C4 mph6 km/h EastMostly Clear
April 29
12am49°F9°C4 mph6 km/h EastMostly Clear
1am49°F9°C4 mph7 km/h EastMostly Clear
2am51°F10°C5 mph8 km/h EastClear
3am55°F13°C5 mph8 km/h EastClear
4am60°F15°C5 mph9 km/h EastMostly Clear
5am64°F18°C6 mph10 km/h EastClear
6am67°F20°C8 mph12 km/h EastClear
7am70°F21°C8 mph14 km/h EastMostly Clear
DateLowHighWindDayNight
April 2848°F9°C73°F23°C8 mph12 km/h from EastMostly ClearClear
April 2949°F10°C77°F25°C5 mph9 km/h from EastMostly ClearClear
April 3053°F12°C78°F26°C6 mph10 km/h from SouthPartly CloudyPartly Cloudy
May 156°F13°C75°F24°C5 mph9 km/h from NorthwestPartly CloudyPartly Cloudy
May 252°F11°C70°F21°C5 mph8 km/h from NortheastPartly CloudyPartly Cloudy
May 345°F7°C58°F14°C12 mph19 km/h from NortheastMostly CloudyMostly Cloudy
May 442°F6°C55°F13°C10 mph16 km/h from NorthMostly CloudyPartly Cloudy

Yes

Low of 49°F10°C, High of 77°F25°C
Wind: 5 mph9 km/h
Precipitation: None

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