Yes

you do need a jacket based on the weather in Johannesburg, South Africa 1 second ago

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

Wind is 2 mph4 km/h from the North, gusting to 11 mph17 km/h
July 17
4pm53°F12°C3 mph4 km/h NorthClear
5pm52°F11°C2 mph4 km/h NorthwestClear
6pm51°F11°C2 mph4 km/h NorthwestClear
7pm51°F10°C3 mph5 km/h NorthClear
8pm50°F10°C3 mph5 km/h NorthClear
9pm49°F10°C3 mph5 km/h NorthClear
10pm49°F9°C3 mph5 km/h NorthClear
11pm48°F9°C3 mph5 km/h NorthMostly Clear
July 18
12am48°F9°C3 mph5 km/h NorthPartly Cloudy
1am47°F8°C2 mph4 km/h NorthPartly Cloudy
2am50°F10°C2 mph3 km/h NorthPartly Cloudy
3am54°F12°C2 mph3 km/h NorthwestPartly Cloudy
DateLowHighWindDayNight
July 1646°F8°C68°F20°C2 mph4 km/h from NorthwestMostly ClearClear
July 1747°F8°C66°F19°C2 mph4 km/h from WestPartly CloudyPartly Cloudy
July 1845°F7°C61°F16°C5 mph8 km/h from EastPartly CloudyMostly Clear
July 1941°F5°C62°F17°C3 mph5 km/h from NorthMostly ClearMostly Clear
July 2044°F6°C59°F15°C5 mph8 km/h from NorthwestPartly CloudyPartly Cloudy
July 2145°F7°C61°F16°C3 mph5 km/h from NortheastPartly CloudyPartly Cloudy
July 2245°F7°C59°F15°C5 mph8 km/h from NorthPartly CloudyMostly Clear

Yes

Low of 47°F9°C, High of 66°F19°C
Wind: 2 mph4 km/h
Precipitation: None

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