Johannesburg is a year-round destination, but September is the best time to visit Johannesburg. You get the ideal combination of mild spring temperatures, low humidity, and the start of the city’s social season. The daily highs average 25°C (77°F), avoiding the intense summer heat and the bite of winter mornings. You beat the rain that typically arrives in October and miss the crowded December holiday rush. It is the peak window for outdoor dining and urban exploration before the highveld thunderstorms become a daily occurrence. Prices remain stable before the year-end surge.
Month by month
Johannesburg in January
January is high summer. It is hot, humid, and wet. Expect daily highs of 26°C (79°F) and dramatic late-afternoon thunderstorms. This is one of the wettest months, so keep an umbrella ready. Schools return in mid-January, so the initial holiday crowds thin out after the first two weeks. Prices for long-distance travel remain high, but local accommodation may stabilize. January is perfect for swimming and exploring indoor museums like the Apartheid Museum when the rain hits.
Johannesburg in February
Heat continues in February, with temperatures ranging from 15°C to 25°C. The humidity remains high, and rain is frequent. It is slightly quieter than January as the business year kicks into full gear. Airfares often drop during this month. It is a great time to visit the Walter Sisulu National Botanical Garden; the heavy rains keep the landscape lush and the Witpoortjie Waterfall at its most powerful.
Johannesburg in March
March marks the transition into autumn. Temperatures are consistent, averaging around 24°C, but the frequency of rain starts to decrease. The air feels crisper. Crowds are moderate, and you won’t face significant surges in hotel pricing. This is a prime month for the Johannesburg International Jazz Festival (depending on the annual schedule) or exploring the Maboneng Precinct’s outdoor markets without the oppressive mid-summer heat.
Johannesburg in April
April is arguably one of the most comfortable months. Expect mild days around 21°C and cool nights dropping to 9°C. Rainfall is minimal. You will encounter slight price spikes and more crowds around the Easter long weekend. If you avoid the holidays, it is relatively affordable. April is the best time for walking tours in Soweto or hiking at Melville Koppies, as the weather is stable and dry.
Johannesburg in May
Winter begins to approach in May. Days are sunny and clear, reaching 19°C, but nights drop significantly to 6°C. There is almost zero rainfall. This is the start of the low season, meaning better availability and lower rates at high-end boutique hotels. It is the start of the best game-viewing season at nearby reserves like Pilanesberg, as the dry weather forces animals to congregate around waterholes.
Johannesburg in June
June is mid-winter. Expect bright blue skies and biting cold mornings. Temperatures range from 4°C to 16°C. It is the driest month of the year. There are very few tourists, making it the cheapest time to visit Johannesburg for accommodation. Pack a heavy jacket for the evenings. June 16 is Youth Day, featuring significant cultural events and commemorations in Soweto that offer deep insight into the city’s history.
Johannesburg in July
July is the coldest month. Temperatures often dip to 2°C at night and peak at 16°C during the day. It never snows, but the wind can be sharp. Like June, this is a budget-friendly period with low demand. This is the peak of the safari season in the surrounding provinces. Use the cold nights to enjoy Johannesburg’s world-class restaurant scene and fireplace-equipped bars in Parkhurst or Greenside.
Johannesburg in August
August is dry, windy, and dusty. Temperatures begin to climb, peaking at 19°C. It is the end of winter, and the landscape can look brown and parched. Prices remain low before the spring uptick. It is a great month for "First Thursdays" in Rosebank, where you can hop between art galleries. The clear nights also provide excellent conditions for stargazing at the Wits Planetarium.
Johannesburg in September
September is spring. The city turns green almost overnight. Temperatures are ideal, ranging from 11°C to 25°C. There is a buzz in the city as outdoor events return. This is the month of the Arts Alive International Festival, bringing a month-long program of dance, theater, and music. September offers the best balance of weather, price, and activity before the heavy summer rains begin.
Johannesburg in October
October is when the famous Jacaranda trees bloom, turning the suburbs purple. Temperatures rise to 26°C. The first summer rains arrive, usually as short afternoon bursts. Tourist numbers start to climb. It is the best month for photography; the purple canopy over streets in Houghton and Kensington is world-famous. Book your accommodation early if you want to stay in these specific neighborhoods.
Johannesburg in November
November is warm and lush, with highs of 25°C and lows of 13°C. It is the height of the thunderstorm season. These storms are spectacular but can disrupt outdoor afternoon plans. Prices are moderate but start to climb toward the end of the month. It is a fantastic time for birdwatching at the Bullfrog Pan or Rietvlei Nature Reserve, as migratory species have arrived for the summer.
Johannesburg in December
December is the peak of summer and the primary holiday season. Temperatures average 26°C. The city actually empties out as locals head to the coast, but tourist attractions remain busy with international visitors. Prices for flights are at their highest. Most businesses close for a "shutdown" period between Christmas and New Year. It is the best time for a quiet, traffic-free urban experience, punctuated by festive markets.
Cheapest time to visit Johannesburg
The cheapest time to visit Johannesburg is during the winter months of June, July, and August. Because most international travelers head to the South African coast or wait for the warmer spring months, inland hotels often drop their rates to attract guests.
You will find the best deals on luxury accommodation in areas like Sandton and Rosebank during this window. Flight prices also tend to dip in May and June before the European summer holiday season begins. If you can handle the cold mornings (around 2°C to 5°C), you can experience the city’s top-tier dining and cultural sites at a fraction of the December cost.
When to avoid Johannesburg
Avoid visiting Johannesburg in late December if you want to experience the city’s famous energy. While the Lack of traffic is a plus, Johannesburg is a "working city." Between December 15th and January 5th, many independent boutiques, smaller galleries, and local restaurants close their doors as owners go on holiday.
If you dislike rain and high humidity, avoid January and February. The afternoon thunderstorms are heavy and can frequently cause localized flooding or power outages, which may disrupt travel plans or outdoor sightseeing. If you are strictly looking for lush, green landscapes, avoid August, when the city is at its driest and dustiest.
Best time for good weather
For the most consistent weather, book your trip for April and May or September and October.
- April/May: You get mild, sunny days and crisp, clear nights. The summer rains have stopped, but the landscape is still green. Humidity is non-existent.
- September/October: This is the "sweet spot" of spring. It is warm enough for shorts and t-shirts during the day without the intense 30°C+ heat spikes seen in mid-summer. The arrival of the Jacaranda blossoms in October provides a unique aesthetic that you won’t find at any other time of the year.
Best time for fewer crowds
The best time for fewer crowds is June and July. As these are the coldest months, domestic tourism slows down. You won’t have to fight for reservations at the city’s top restaurants like Marble or The Test Kitchen Carbon.
Museums such as the Apartheid Museum and Constitution Hill are much quieter, allowing for a more reflective experience. If you want the city to yourself, the period between December 26th and January 2nd is strangely quiet. While the "resident" crowd is gone, the major tourist sites remain open, giving you a private-viewing feel in a usually bustling metropolis.