Yes

you do need a jacket based on the weather in Chessington World of Adventures Resort, Leatherhead Rd, Chessington KT9 2NE, UK 1 second ago

Why? Because the cold's there, but it's just a reminder, not an invasion!
49°F10°C & Mostly Cloudy

Wind is 4 mph6 km/h from the Southeast, gusting to 9 mph14 km/h
September 27
3am50°F10°C5 mph7 km/h SoutheastMostly Cloudy
4am53°F12°C6 mph9 km/h SoutheastMostly Cloudy
5am56°F13°C7 mph12 km/h SoutheastMostly Cloudy
6am59°F15°C10 mph15 km/h SouthMostly Cloudy
7am60°F16°C10 mph17 km/h SouthMostly Cloudy
8am62°F17°C11 mph18 km/h SouthCloudy
9am62°F17°C11 mph18 km/h SouthCloudy
10am62°F17°C11 mph18 km/h SouthCloudy
11am62°F17°C10 mph17 km/h SouthMostly Cloudy
12pm61°F16°C10 mph16 km/h SouthMostly Cloudy
1pm59°F15°C9 mph14 km/h SouthMostly Cloudy
2pm58°F14°C7 mph11 km/h SouthPartly Cloudy
DateLowHighWindDayNight
September 2648°F9°C62°F17°C9 mph14 km/h from SouthMostly CloudyMostly Cloudy
September 2751°F11°C64°F18°C5 mph9 km/h from WestDrizzleMostly Clear
September 2844°F7°C63°F17°C3 mph4 km/h from NorthPartly CloudyMostly Cloudy
September 2945°F7°C65°F18°C2 mph3 km/h from WestPartly CloudyPartly Cloudy
September 3048°F9°C65°F18°C4 mph7 km/h from SouthPartly CloudyPartly Cloudy
October 150°F10°C67°F19°C7 mph11 km/h from SouthMostly CloudyCloudy
October 254°F12°C65°F18°C9 mph14 km/h from SouthwestDrizzleCloudy

Yes

Low of 51°F11°C, High of 64°F18°C
Wind: 5 mph9 km/h
Precipitation: 31% rain

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