Weather in South Africa: Climate, Seasons, and Average Monthly Temperature

aerial shot of Cape Town, South Africa
Grant Duncan Smith/ Getty Images

Most overseas visitors think of South Africa as a land drenched in perpetual sunshine. However, with a total landmass of over 470,900 square miles, South Africa's weather is not so easily summarized. It is a land of arid desert and lush tropical coasts, of temperate woodland and snow-capped mountains. Depending on when you travel and where you go, it is possible to encounter almost every different kind of weather extreme.

 

Although generalizing South Africa's weather is difficult, there are a few absolutes that apply throughout the country. There are four distinct seasons—summer, fall, winter, and spring (unlike Africa's equatorial countries, where the year is split into rainy and dry seasons). Summer lasts from November to January, while winter lasts from June to August. For most of the country, the rains usually coincide with the summer months, although the Western Cape (including Cape Town) is an exception to this rule. 

South Africa sees average summer highs of around 82 F (28 C), and average winter highs of approximately 64 F (18 C). Of course, these averages change dramatically from region to region. Generally speaking, temperatures at the coast are more consistent throughout the year, while the arid and mountainous areas of the interior see the greatest fluctuation in seasonal temperatures. Regardless of when or where you travel in South Africa, it's a good idea to pack for all occasions.

Even in the Kalahari Desert, nighttime temperatures can drop below freezing. 

Popular Cities in South Africa

Cape Town

Located in the far south of the country in the Western Cape, Cape Town has a temperate climate similar to that of Europe or North America. Summers are warm and generally dry, and in recent years, the city has been plagued by drought.

Winters in Cape Town can be downright cold, and the majority of the city's rain falls at this time. The shoulder seasons are often the most pleasant. Thanks to the existence of the cold Benguela current, the waters around Cape Town are always chilly. The climate for most of the Garden Route is similar to that of Cape Town. 

Durban

Situated in the northeast province of KwaZulu-Natal, Durban enjoys a tropical climate and weather that remains warm all year round. In the summer, temperatures can be sweltering, and the humidity level is high. The rains come with the higher temperatures, and usually take the form of short, sharp thunderstorms in the late afternoon. Winters are mild, sunny and typically dry. Again, the most pleasant time of year to visit is usually in spring or fall. The Indian Ocean washes Durban's shores. The sea is positively warm in summer and refreshingly cool in winter. 

Johannesburg

Johannesburg is located in Gauteng province in the northern interior. Summers here are generally hot and humid and coincide with the rainy season. Like Durban, Johannesburg sees its fair share of spectacular thunderstorms. Winters in Johannesburg are moderate, with dry, sunny days and chilly nights.

If you're visiting the Kruger National Park, the temperature chart below will give you a good idea of what you can expect regarding weather. 

The Drakensberg Mountains

Like Durban, the Drakensberg Mountains are located in KwaZulu-Natal. However, their increased elevation means that even in the height of summer, they offer a respite from the hot temperatures of the coast. Rainfall can be significant here during the summer months, but for the most part, the thunderstorms are interspersed with perfect weather. Winters are dry and warm during the day, although nights are often freezing at higher elevations and snow is common. April and May are the best months for trekking in the Drakensberg. 

The Karoo

The Karoo is a vast region of semi-desert wilderness that covers some 154,440 square miles square kilometers and spans three provinces in the center of South Africa.

Summers in the Karoo are hot, and the region's limited annual rainfall occurs at this time. Around the lower Orange River area, temperatures frequently exceed 104 F (40 C). In winter, the weather in the Karoo is dry and mild. The best time to visit is between May and September when the days are warm and sunny. However, be aware that nighttime temperatures can drop dramatically, so you'll need to pack extra layers. 

Spring in South Africa

March is typically the last warm month in South Africa, with a daytime temperature ranging from 77 to 82 F. In April, temperatures drop slightly more, and fog usually occurs. In May, there are showers and heavy clouds. Temperatures in Cape Town typically hover around 65 F, while Johannesburg is usually in the low 70s.

What to Pack: Pack light, breathable clothing, but be prepared for rain too. Don't forget insect repellant, preferably with DEET!

Summer in South Africa

Summer months are winter for South Africa. Winter weather is unpredictable and varies wildly depending on where you're visiting. For example, Cape Town and Durban can experience temperature variations of nearly 20 degrees. Snow is common in the mountains. If you're hoping to see whales, the summer months are the best time to do so.

What to Pack: Winter in South Africa is usually mild, but you should still pack long-sleeved shirts, sweaters, a jacket, and a good raincoat, especially if you're visiting wetter coastal cities.

Fall in South Africa

South Africa experiences its "spring" during the traditional fall months. Temperatures usually range from the mid-60s in Cape Town to the high 70s in Pretoria. Temperatures continue to rise over the season, as rains decrease, making this a great season to explore South Africa.

What to Pack: Your spring packing list should include some of the lighter clothing you'll pack for summer, as well as a jacket or sweater for the occasional chilly day. Don't forget sunscreen—the sun in South Africa is harsh year-round.

Winter in South Africa

South Africa experiences a hot tropical summer during the winter months. In the western part of the country, afternoon rain showers are frequent. Cape Town is also quite windy at this time. Water temperatures are warm and ideal for swimming.

What to Pack: During the summer months, pack clothes that are cool, lightweight and comfortable, as temperatures can be scorching. Pack swimwear if you'll be visiting the beach.