Yes

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

Why? Because looks like it's raining and there's a refreshing nip in the air and it's really really huffing out there!
45°F7°C & Rain

Wind is 16 mph25 km/h from the Southwest, gusting to 36 mph58 km/h
January 27
9am46°F8°C16 mph25 km/h SouthwestDrizzle
10am45°F7°C16 mph25 km/h SouthwestDrizzle
11am45°F7°C14 mph22 km/h SouthwestMostly Cloudy
12pm44°F7°C14 mph23 km/h SouthRain
1pm44°F7°C15 mph24 km/h SouthwestMostly Cloudy
2pm44°F7°C15 mph24 km/h SouthMostly Cloudy
3pm44°F7°C16 mph25 km/h SouthWindy
4pm44°F6°C16 mph26 km/h SouthWindy
5pm44°F7°C16 mph26 km/h SouthWindy
6pm44°F7°C15 mph25 km/h SouthWindy
7pm45°F7°C17 mph27 km/h SouthWindy
8pm45°F7°C17 mph27 km/h SouthWindy
DateLowHighWindDayNight
January 2644°F6°C49°F9°C13 mph22 km/h from SouthwestRainDrizzle
January 2743°F6°C48°F9°C13 mph21 km/h from SouthwestRainMostly Cloudy
January 2840°F4°C45°F7°C4 mph7 km/h from SouthMostly CloudyDrizzle
January 2934°F1°C44°F7°C5 mph9 km/h from NorthwestMostly ClearPartly Cloudy
January 3033°F1°C46°F8°C7 mph11 km/h from WestDrizzleMostly Cloudy
January 3135°F2°C46°F8°C5 mph8 km/h from SouthMostly CloudyDrizzle
February 142°F6°C48°F9°C8 mph13 km/h from SouthwestDrizzleMostly Cloudy

Yes

Low of 43°F6°C, High of 47°F9°C
Wind: 13 mph21 km/h
Precipitation: 83% rain

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