Yes

you do need a jacket based on the weather in Lenasia South, Lenasia, South Africa 8 minutes ago

Why? Because the cold's there, but it's just a reminder, not an invasion!
50°F10°C & Clear

Wind is 4 mph7 km/h from the West, gusting to 11 mph18 km/h
August 20
9pm49°F10°C5 mph8 km/h WestClear
10pm48°F9°C5 mph7 km/h WestClear
11pm47°F8°C4 mph7 km/h WestClear
August 21
12am46°F8°C4 mph6 km/h WestClear
1am47°F8°C3 mph5 km/h WestClear
2am53°F12°C3 mph5 km/h SouthwestClear
3am60°F15°C4 mph6 km/h SouthwestClear
4am66°F19°C6 mph9 km/h SouthwestClear
5am70°F21°C7 mph11 km/h SouthwestClear
6am74°F23°C8 mph12 km/h SouthwestClear
7am76°F24°C8 mph13 km/h SouthwestClear
8am77°F25°C9 mph14 km/h SouthwestClear
DateLowHighWindDayNight
August 2046°F8°C77°F25°C6 mph10 km/h from SouthwestClearClear
August 2150°F10°C80°F27°C12 mph19 km/h from WestClearClear
August 2245°F7°C76°F24°C11 mph18 km/h from WestClearClear
August 2343°F6°C75°F24°C6 mph10 km/h from WestClearClear
August 2450°F10°C79°F26°C10 mph17 km/h from NorthwestMostly ClearMostly Clear
August 2554°F12°C79°F26°C9 mph15 km/h from NorthPartly CloudyPartly Cloudy
August 2655°F13°C81°F27°C9 mph14 km/h from NorthwestMostly ClearClear

Yes

Low of 50°F10°C, High of 81°F27°C
Wind: 12 mph19 km/h
Precipitation: None

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