<Tr> <Td> Upington </Td> <Td> 36 </Td> <Td> 20 </Td> <Td> 21 </Td> <Td> </Td> </Tr> <P> South Africa is a sunny country, averaging 8 - 10 daily sunshine hours in most regions . The average annual rainfall for South Africa is 450mm (compared to a global average of 860mm) but large and unpredictable variations are common . Overall, rainfall is greatest in the east and gradually decreases westward, with some semi-desert areas along the western edge of South Africa . For most of the country, rain falls mainly in the summer months with brief afternoon thunderstorms . The exception is the Western Cape and its capital city Cape Town where the climate is Mediterranean and it rains more in the wintertime.In the winter months, snow collects on the high mountains of the Cape and the Drakensberg . </P> <P> South Africa's coasts are major tourist attractions and trade locations . This makes the ocean important to South Africa and its citizens . The Indian and Atlantic oceans meet at the southwestern tip of South Africa . The warm Agulhas Current runs south along the east coast and the cold Benguela Current flows north along the western shore . As a result, there is at least a 6 ° C difference in the annual temperatures of Durban (on the east) and Port Nolloth (on the west) despite being located at roughly the same latitude . </P> <P> Warm season weather is influenced by the Southern Oscillation (ENSO, or El Niño--Southern Oscillation). South Africa experiences hotter and drier weather during the El Niño phase while La Niña brings cooler and wetter conditions . </P>

What is the name for the climatic zone found in the southwestern part of south africa