Cape Town is the second largest city in South Africa and is the capital of the Western Cape Province, as well as being the legislative capital of South Africa (the Houses of Parliament are here). It is located in the south-west corner of the country near the Cape of Good Hope, and is the most southern city in Africa. It is a stone's throw from South Africa's world-famous Cape Winelands around Stellenbosch, Paarl and Franschhoek.
Cape Town is also known as the Mother City in South Africa. It is also one of the most iconic cities in the world.
The summer months are from December to February. Days are usually hot, but the humidity is low, so it is not uncomfortable. You should stay inside or in the shade during the midday heat and use sufficient sun block. You will fight for space on the beach around New Year's with all the local tourists but it is still a great time to visit as there are a lot of events happening.
Cape Town has some of the worlds best wine producing vineyards and arguably the worlds most scenically stunning on it's doorstep. The wine regions of Stellenbosch, Franschhoek and Paarl are all with in an easy hours drive, these historic and lush regions offer stunning views and world class wine tastings. You can self drive but this come with limitations, often the best farms are closed to the public and then there is the drinking and driving issue. The best value and safest way to see the winelands is to trust your day to a dedicated wine tour company.