Yes
you do need a jacket based on the weather in London, UK 1 second ago
Why? Because it's colder than cold. Water will freeze.
31°F-1°C & Clear
Wind is 3 mph5 km/h from the S, gusting to 9 mph15 km/h
| December 2 | ||||
| 2pm | 30°F-1°C | 4 mph6 km/h S | Clear | |
| 3pm | 30°F-1°C | 4 mph6 km/h S | Clear | |
| 4pm | 30°F-1°C | 4 mph6 km/h SE | Clear | |
| 5pm | 31°F-0°C | 5 mph7 km/h SE | Mostly Clear | |
| 6pm | 32°F0°C | 6 mph10 km/h SE | Mostly Cloudy | |
| 7pm | 33°F1°C | 6 mph10 km/h S | Mostly Cloudy | |
| 8pm | 35°F2°C | 7 mph11 km/h S | Cloudy | |
| 9pm | 36°F2°C | 8 mph12 km/h S | Cloudy | |
| 10pm | 38°F3°C | 8 mph13 km/h S | Cloudy | |
| 11pm | 38°F3°C | 9 mph14 km/h S | Cloudy | |
| December 3 | ||||
| 12am | 38°F3°C | 9 mph15 km/h S | Drizzle | |
| 1am | 38°F4°C | 10 mph16 km/h S | Drizzle | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 1 | 30°F-1°C | 33°F1°C | 3 mph4 km/h from SW | Partly Cloudy | Freezingdrizzle |
| December 2 | 33°F1°C | 46°F8°C | 7 mph11 km/h from S | Drizzle | Rain |
| December 3 | 40°F5°C | 47°F8°C | 8 mph14 km/h from NE | Rain | Drizzle |
| December 4 | 37°F3°C | 43°F6°C | 11 mph17 km/h from NW | Cloudy | Partly Cloudy |
| December 5 | 33°F1°C | 42°F6°C | 5 mph8 km/h from SE | Drizzle | Drizzle |
| December 6 | 39°F4°C | 51°F10°C | 12 mph20 km/h from S | Drizzle | Drizzle |
| December 7 | 46°F8°C | 52°F11°C | 7 mph11 km/h from S | Mostly Cloudy | Drizzle |
Yes
Low of 34°F1°C, High of 46°F8°CWind: 7 mph11 km/h
Precipitation: 82% rain