Yes

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

Why? Because the air feels like the cozy middle ground between summer and winter!
54°F12°C & Mostly Cloudy

Wind is 5 mph8 km/h from the Northeast, gusting to 9 mph15 km/h
October 16
10am55°F13°C5 mph8 km/h NortheastMostly Cloudy
11am56°F14°C6 mph9 km/h NortheastMostly Cloudy
12pm58°F14°C6 mph10 km/h NortheastMostly Cloudy
1pm59°F15°C6 mph10 km/h NortheastMostly Cloudy
2pm59°F15°C5 mph8 km/h NortheastPartly Cloudy
3pm60°F15°C5 mph9 km/h NortheastPartly Cloudy
4pm59°F15°C5 mph8 km/h NortheastMostly Cloudy
5pm58°F14°C4 mph7 km/h EastMostly Cloudy
6pm56°F14°C4 mph6 km/h EastMostly Cloudy
7pm56°F13°C5 mph7 km/h EastMostly Cloudy
8pm55°F13°C4 mph7 km/h NortheastMostly Cloudy
9pm54°F12°C4 mph7 km/h NortheastPartly Cloudy
DateLowHighWindDayNight
October 1550°F10°C60°F15°C5 mph8 km/h from NortheastMostly CloudyPartly Cloudy
October 1648°F9°C59°F15°C4 mph7 km/h from NortheastMostly CloudyMostly Cloudy
October 1747°F9°C58°F15°C8 mph12 km/h from SoutheastCloudyCloudy
October 1852°F11°C59°F15°C12 mph19 km/h from SoutheastDrizzleDrizzle
October 1952°F11°C57°F14°C12 mph20 km/h from SouthwestDrizzleDrizzle
October 2050°F10°C58°F15°C9 mph15 km/h from WestDrizzleDrizzle
October 2147°F8°C59°F15°C9 mph15 km/h from SouthDrizzleDrizzle

Yes

Low of 47°F9°C, High of 59°F15°C
Wind: 4 mph7 km/h
Precipitation: None

Support This Page