Yes

you do need a jacket based on the weather in Nairobi, Kenya 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
57°F14°C & Mostly Cloudy

Wind is 2 mph4 km/h from the North, gusting to 7 mph12 km/h
September 19
11pm57°F14°C3 mph4 km/h NorthMostly Cloudy
September 20
12am58°F14°C3 mph4 km/h NorthMostly Cloudy
1am61°F16°C3 mph4 km/h NortheastMostly Cloudy
2am64°F18°C4 mph6 km/h EastMostly Cloudy
3am67°F20°C5 mph8 km/h SoutheastMostly Cloudy
4am71°F22°C5 mph9 km/h SoutheastMostly Cloudy
5am74°F23°C6 mph10 km/h SoutheastMostly Cloudy
6am76°F25°C6 mph10 km/h SoutheastMostly Cloudy
7am78°F26°C7 mph11 km/h SoutheastPartly Cloudy
8am79°F26°C8 mph13 km/h SoutheastPartly Cloudy
9am79°F26°C8 mph14 km/h SoutheastPartly Cloudy
10am78°F25°C9 mph15 km/h SoutheastPartly Cloudy
DateLowHighWindDayNight
September 1957°F14°C79°F26°C6 mph10 km/h from SoutheastPartly CloudyPartly Cloudy
September 2057°F14°C78°F26°C7 mph12 km/h from EastPartly CloudyPartly Cloudy
September 2158°F14°C77°F25°C7 mph11 km/h from EastMostly CloudyPartly Cloudy
September 2257°F14°C77°F25°C7 mph12 km/h from EastPartly CloudyPartly Cloudy
September 2355°F13°C79°F26°C6 mph9 km/h from EastMostly CloudyPartly Cloudy
September 2456°F13°C80°F27°C5 mph7 km/h from EastPartly CloudyPartly Cloudy
September 2558°F15°C78°F25°C5 mph7 km/h from EastPartly CloudyPartly Cloudy

Yes

Low of 57°F14°C, High of 79°F26°C
Wind: 7 mph12 km/h
Precipitation: None

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