Last updated: August 31, 2025
August in Johannesburg, South Africa is characterized by pleasant weather conditions, making it an ideal time for outdoor activities. With a maximum temperature reaching a comfortable 27°C (80°F) and an average of 14°C (57°F), the days are warm and inviting. Nights can be a bit nippy, dipping down to a minimum of -1°C (30°F). Humidity levels sit at a moderate 68%, complementing the overall pleasant atmosphere. Notably, August experiences negligible precipitation, with only 3 mm (0.1 in) recorded and absolutely 0 rainy days, ensuring clear skies for most of the month. This combination of warmth and dryness makes August a wonderful time to explore the vibrant culture and stunning landscapes of Johannesburg.
In August, Johannesburg begins to emerge from winter, with temperatures gradually warming as spring approaches. The month witnesses a daily minimum of -1°C (30°F), rising to an average of 14°C (57°F) and peaking at 27°C (80°F). This shift marks a noticeable improvement from the frigid conditions of July, when the region experienced daytime highs barely cresting into the mid-20s. The nights can still be chilly, highlighting a dramatic contrast to the warm days. As the city transitions into spring, the gradual increase in temperatures serves as a gentle reminder of the vibrant seasons ahead, making August a particularly pleasant—and perfect—time for outdoor activities and exploration in Johannesburg.
In August, Johannesburg experiences a stark shift in its precipitation patterns, with a meager 3 mm (0.1 in) of rainfall, making it one of the driest months of the year. Notably, this month sees zero precipitation days, a continuation of July's dry spell, and setting the stage for the minimal rainfall typical in winter. This trend underscores a significant seasonal transition: as the city moves from the cooler, drier winter months, the return of precipitation becomes more pronounced in September and October. With rainfall climbing steadily in the latter part of the year, August serves as a brief pause before Johannesburg's vibrant spring and summer months, when the lush greenery blooms once again.
In August, Johannesburg experiences a notable dip in humidity, registering at 68%, the lowest point of the year. This decline marks a shift from the higher levels seen in the earlier months of winter, notably July’s 71%. As the year progresses into spring, humidity begins to rise again, with September already showing an increase to 74%. The transition from winter to spring in Johannesburg is characterized by this gradual change in humidity, providing a refreshing and mild atmosphere that contrasts with the more humid summer months that follow. Overall, August serves as a brief respite before the humidity starts to build again in anticipation of spring’s arrival.
In August, Johannesburg experiences a UV Index of 8, categorizing it as very high. This marks a slight increase from the cooler months of June and July, which recorded a UV Index of 6, indicating a return to stronger sun exposure as spring approaches. With a burn time of just 15 minutes, it’s essential for residents and visitors to remain vigilant about sun protection, similar to the heightened vigilance required in April when the UV Index also reached 10. Leading into the warmer months, this trend suggests a gradual escalation in UV intensity, culminating in the extreme levels witnessed in the peak summer months of December and January. For more detailed insights into UV levels throughout the year, check out the comprehensive guide on the Johannesburg UV Index.
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In August, Johannesburg basks in 329 hours of sunshine, a vibrant testament to the city's warming transition towards spring. This month marks a noticeable peak as days gradually lengthen, following a mild winter characterized by 298 to 314 hours of sunlight in the preceding months. The trend continues upward, with daylight hours steadily increasing from June through August, setting the stage for even brighter months ahead. With September and October promising 337 and 362 hours of sunshine respectively, August serves as a delightful precursor, inviting both residents and visitors to revel in the joyful embrace of the sun.
In Johannesburg, August continues the trend of bright and sunny skies characteristic of the winter months. With an 80% chance of sunshine, this month follows a remarkable July, which boasts a peak 95% likelihood of clear weather. As winter gradually transitions into spring, the sunny disposition remains a pleasing constant, though it drops slightly compared to the high summer months. Interestingly, sunshine chances have been steadily high since April, suggesting that if you're planning outdoor activities, August offers a fantastic opportunity to enjoy the great outdoors under mostly clear skies. This persistent clarity sets the tone for the months to come, leading into a vibrant spring season.
As winter fades and spring starts to peek around the corner, August in Johannesburg sees a slight increase in daylight, averaging 11 hours—a reassuring signal of the warmer seasons approaching. Following the deep winter months of June and July, which are characterized by shorter daylight hours, August marks a transition. The daytime length begins to stabilize, mirroring the light patterns found in the earlier part of the year, hinting at the return of longer days. This gradual shift continues into September, setting the stage for the vibrant days of spring, where daylight stretches further and brighter.
As August arrives in Johannesburg, residents feel a notable shift in the breeze, with the average wind speed rising to 3.9 m/s (9 mph). This increase marks a refreshing change, as the city transitions from the calmer winds of winter, hovering around 2.6 m/s (6 mph) in the earlier months. The trend continues into two dynamic months, September and October, where winds remain brisk at 3.7 m/s (8 mph), setting the stage for a vibrant spring. Interestingly, the wind speeds peak again in November, reaching 4.2 m/s (9 mph), invigorating the landscape as nature awakens. This rhythm of increasing winds not only heralds seasonal change but also invites residents and visitors alike to enjoy the outdoors, embracing the lively spirit of Johannesburg in summer's approach.
Weather in Johannesburg varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Johannesburg, focusing on differences in temperature, rainfall, humidity, and UV levels.
In Johannesburg, August weather is characterized by cooler temperatures, with a minimum of -1°C (30°F) and an average temperature of 14°C (57°F), peaking at 27°C (80°F). This month sees minimal precipitation, averaging only 3 mm (0.1 in) with no rainy days and a humidity level of 68%. In contrast, January is much warmer, with temperatures ranging from a minimum of 9°C (48°F) to an average of 20°C (69°F), and highs reaching 33°C (92°F). The weather in January is wetter, with a substantial 130 mm (5.1 in) of rainfall spread across 14 days and higher humidity at 79%. For more details, visit Johannesburg weather in January.
August and February showcase distinct differences in weather patterns. In August, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 27°C (80°F), with an average of 14°C (57°F). This month is characterized by dry conditions, featuring only 3 mm (0.1 in) of precipitation and no rainy days, alongside a humidity level of 68%. In contrast, February offers a much warmer climate, with temperatures varying from a minimum of 10°C (51°F) to a maximum of 31°C (87°F) and an average of 20°C (68°F). February is also notably wetter, receiving 138 mm (5.4 in) of rain over 16 days and experiencing higher humidity at 77%. For more details on February's climate, check out Johannesburg weather in February.
August and March display contrasting weather patterns. In August, temperatures range from a chilly minimum of -1°C (30°F) to an average of 14°C (57°F), peaking at a comfortable 27°C (80°F), accompanied by minimal precipitation of just 3 mm and no rainy days, resulting in a humidity level of 68%. In stark contrast, March boasts warmer temperatures, with a minimum of 8°C (46°F) and an average of 19°C (66°F) that can reach up to 30°C (86°F). However, it is also significantly wetter, experiencing 79 mm of rain across 10 days, which contributes to a higher humidity of 77%. For more details about the weather in March, visit Johannesburg weather in March.
When comparing the weather in August and April, we see notable differences in temperature and precipitation. August offers cooler conditions with a minimum temperature of -1°C (30°F) and an average of 14°C (57°F), while April tends to be warmer, with a minimum of 3°C (38°F) and an average of 16°C (61°F). The maximum temperatures in both months are quite similar, reaching up to 27°C (80°F) in August and slightly higher at 29°C (85°F) in April. One significant contrast is the precipitation levels: August boasts almost no rainfall, with only 3 mm recorded over 0 days, whereas April experiences considerably more rain, totaling 63 mm over 10 days. Additionally, humidity levels are higher in April at 81% compared to 68% in August. For more detailed information, check out Johannesburg weather in April.
In August, the weather sees a slight increase in average temperature compared to May, with average temperatures reaching 14°C (57°F) and a maximum of 27°C (80°F). Precipitation is minimal in August, with just 3 mm (0.1 in) recorded over no rainy days, resulting in lower humidity levels of 68%. In contrast, May experiences a bit cooler average temperature of 13°C (56°F) and more precipitation at 13 mm (0.5 in) over one day, leading to higher humidity levels of 82%. This comparison highlights the transition from the chill of early autumn in May to the warmer, drier conditions typical of August. For more details about the weather conditions in May, you can visit Johannesburg weather in May.
In comparing the weather of August and June, we see a notable shift in temperatures and precipitation. August boasts a milder climate with average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 27°C (80°F), while June is slightly cooler, with temperatures dipping to a minimum of -4°C (24°F) and peaking at 24°C (76°F). Additionally, August experiences less precipitation, only 3 mm (0.1 in) and no rainy days, in contrast to June's 6 mm (0.2 in) of rain over a single rainy day. Humidity also remains relatively high in both months, with August at 68% and June slightly higher at 73%. For more detailed information, you can check out Johannesburg weather in June.
In comparing the weather of August and July, August is noticeably warmer, with average temperatures reaching 14°C (57°F) compared to July's cooler average of 10°C (51°F). Additionally, August boasts higher maximum temperatures at 27°C (80°F), while July peaks at 25°C (78°F). Both months experience minimal precipitation, but July has a slightly higher humidity level at 71% compared to August's 68%. For a detailed overview of July weather in Johannesburg, you can visit Johannesburg weather in July.
In August, the weather tends to be milder, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 27°C (80°F) and an average of 14°C (57°F). There is minimal rainfall, with only 3 mm (0.1 in) and no recorded rainy days, resulting in a humidity of 68%. In contrast, September experiences slightly warmer conditions, with average temperatures rising to 17°C (64°F) and maximums peaking at 32°C (91°F). While humidity increases to 74%, September also sees a bit more precipitation; 8 mm (0.3 in) falls over two days. Overall, September offers a transition to warmer and slightly wetter weather compared to the more stable climate of August. For more details, visit Johannesburg weather in September.
August and October showcase contrasting weather patterns. In August, temperatures range from a chilly -1°C (30°F) at their minimum to a pleasant maximum of 27°C (80°F), with an average of 14°C (57°F). This month experiences very little precipitation, with only 3 mm (0.1 in) measured over zero days, and a moderate humidity level of 68%.
In contrast, October has a warmer overall profile, with minimum temperatures starting at 4°C (40°F) and peaking at an impressive 33°C (92°F), averaging around 19°C (66°F). However, this month is notably wetter, receiving 63 mm (2.5 in) of rainfall over eight days, coupled with a slightly higher humidity level of 74%. For more detailed information, you can check out Johannesburg weather in October.
August weather tends to be cooler, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 27°C (80°F) and an average of 14°C (57°F). The month is relatively dry, with only 3 mm (0.1 in) of precipitation recorded over zero rainy days and humidity levels averaging around 68%. In contrast, November experiences much warmer temperatures, ranging from a minimum of 4°C (40°F) to a maximum of 34°C (93°F), with an average of 20°C (68°F). However, this month also sees significantly more rainfall, totaling 97 mm (3.8 in) over 13 wet days, and higher humidity at 82%. This stark contrast highlights the transition from the cooler, drier August to the hotter, wetter November. For more detailed comparisons, you can check Johannesburg weather in November.
In August, the weather is typically cooler, featuring a temperature range from a minimum of -1°C (30°F) to a maximum of 27°C (80°F), with an average of 14°C (57°F), and low humidity at 68%. Precipitation is quite rare during this month, with only 3 mm recorded on no rainy days. In contrast, December experiences much warmer temperatures, ranging from a minimum of 10°C (50°F) to a maximum of 34°C (93°F), with an average temperature of 20°C (69°F) and higher humidity levels at 81%. Additionally, December is significantly wetter, accumulating 146 mm of precipitation over 19 rainy days, making it a stark contrast to the dry August weather. For more detailed information, you can refer to Johannesburg weather in December.
As August rolls into Johannesburg, the city experiences a delightful transition into warmer weather, showcasing average temperatures that are significantly milder compared to the chilly midwinter months. With hardly any rainfall and low humidity levels, August is a dry canvas, perfect for outdoor exploration and enjoying the sun. While days are pleasantly warm, evenings can still carry a crisp edge, urging residents and visitors alike to cozy up in light jackets. This unique blend of sunshine and cool nights sets August apart from both the chilly Julys and the soon-to-come warmer months, making it a lovely time to appreciate Johannesburg’s vibrant landscapes. For more insights on what to expect in terms of seasonal changes, be sure to check out Johannesburg Climate.