Last updated: August 31, 2025
September in Bloemfontein, South Africa showcases a striking contrast in temperatures, with maximums reaching a sizzling 34°C (93°F) and cool nights dipping to a crisp -5°C (24°F). The average temperature stands at a pleasant 17°C (62°F), making it an ideal time for outdoor activities. Despite this warm spell, the city experiences minimal rainfall, accumulating just 8 mm (0.3 in) over 2 days, contributing to a humidity level of 63% that adds a hint of moisture to the air. This transitional month heralds the arrival of spring, painting the city in vibrant colors and inviting both locals and visitors to embrace its beauty.
As September arrives in Bloemfontein, South Africa, the transition from winter to spring becomes evident in the temperature. With a minimum of -5°C (24°F), the early days of the month can still feel quite crisp, but by midday, temperatures soar to an inviting maximum of 34°C (93°F). The average temperature settles around 17°C (62°F), signaling a warm-up that is both refreshing and essential for the blossoming season ahead. This month marks a clear shift from the frigid depths of winter, as the city vibrantly prepares for the hotter months to come, blending the last whispers of coolness with emerging warmth.
In September, Bloemfontein experiences a modest precipitation total of 8 mm (0.3 in), accompanied by just 2 days of rain. This marks a slight increase from the drier months of winter, where rainfall was limited to a mere handful of days. As the region transitions into spring, the precipitation levels begin to show subtle signs of life compared to the preceding months of June, July, and August, which collectively received scant amounts of rain. Historically, September serves as a precursor to more significant rainfall in October and November, hinting at the vibrant growth awaiting the landscape as temperatures rise. While the amount of rain remains low relative to other months, the two rainy days signal a gradual shift towards the wetter season, paving the way for the lush blooms typical of Bloemfontein's spring.
In September, Bloemfontein experiences a notable drop in humidity, averaging around 63%, which marks a gradual transition from the drier months of August and July. This slight increase in moisture compared to the preceding months suggests a subtle shift towards the more humid conditions typical of the spring season. As we observe the broader trend, it becomes clear that humidity levels generally rise from the colder winter months into the warmer spring, culminating in April and May, when the air feels quite heavy. Following this peak, humidity starts to taper off again as the temperatures rise towards summer, showcasing the region's characteristic seasonal ebb and flow.
As we transition into September in Bloemfontein, the UV Index remains a notable 11, categorizing the exposure as extreme with a burn time of just 10 minutes. This month continues the trend of high UV levels typical of the southern hemisphere's spring, following the intense rates of 15 observed in January and February. While we see a slight dip from August's 8, September's UV exposure underscores the importance of vigilance in sun safety. As we head towards October, where the UV Index inches up to 12, it's crucial to stay informed and protected. For more detailed information on UV levels throughout the year, visit Bloemfontein UV Index.
UV Risk Categories
As the calendar flips to September, Bloemfontein basks in the warm embrace of 340 hours of sunshine, signaling the arrival of spring. This month continues a cheerful upward trend, with daylight hours increasing from the colder winter months, showcasing a thrilling growth from 329 hours in August. Following the pattern of rising sunlit days, September sets the stage for the tantalizing increase that peaks in the summer months, ultimately reaching 399 hours in December. The gradual transition from winter's shorter days to the longer, sunlit hours fosters a vibrant energy in the air, making Bloemfontein a delightful destination for outdoor enthusiasts and sun-seekers alike.
September in Bloemfontein, South Africa, brings a promising chance of sunny weather, with 81% likelihood of sunshine, continuing the trend of clear skies seen throughout winter. Following the peak of 93% in July, the percentage remains high in August and September, indicating the city's gradual transition into spring. This steady warmth suggests that as the days grow longer and temperatures rise, residents and visitors alike can look forward to abundant sunshine, making it an ideal time for outdoor activities and exploration. The city's weather patterns clearly highlight Bloemfontein as a sunlit haven as it bids farewell to the colder months.
As September arrives in Bloemfontein, the daylight duration starts to settle into a rhythm typical of transitioning seasons. After the longer days of summer, September shares a daylight span of 11 hours—a slight tapering compared to August's longer moments of light. This pattern hints at the gradual return of shorter days as the year progresses. Following September, there’s a rebound in daylight duration in October that nudges back up to 12 hours, ultimately leading into the longer days of late spring and early summer in November and December. Overall, the trends reflect the city's consistent daylight patterns, offering a comforting predictability in the changing seasons.
As September ushers in the transition from winter to spring in Bloemfontein, the winds begin to pick up, with average speeds reaching 3.9 m/s (9 mph). This marks a noticeable increase from the milder winds of previous months, where rates hovered around 2.5 to 3.4 m/s. The gentle gusts of September not only signal a refreshing change in the season but also hint at the upcoming warmth of summer. Following this trend, the wind speed tends to slightly decline in October, settling back to around 3.7 m/s. Overall, September stands out as a pivotal month, projecting a clear shift towards the more vibrant and lively conditions of the latter part of the year.
Weather in Bloemfontein varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bloemfontein, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, temperatures in Bloemfontein range from a chilly minimum of -5°C (24°F) to an average of 17°C (62°F) and can peak at a warm 34°C (93°F). The month experiences relatively low precipitation, with only 8 mm (0.3 in) over about 2 days, and humidity sits at 63%. In contrast, January brings much warmer conditions, with a minimum of 10°C (50°F), an average of 23°C (74°F), and highs reaching up to 38°C (101°F). This month is significantly wetter, receiving 93 mm (3.7 in) of rain over approximately 10 days, and humidity rises to 75%. For more detailed insights, check out Bloemfontein weather in January.
September and February present notable contrasts in weather patterns. In September, temperatures can range from a chilly -5°C (24°F) at night to a pleasant average of 17°C (62°F) during the day, peaking at a warm 34°C (93°F). This month features minimal precipitation, with only 8 mm (0.3 in) falling over just 2 days, and humidity stands at a moderate 63%. In contrast, February is characterized by milder nighttime temperatures, with a minimum of 11°C (53°F) and an average daily temperature of 22°C (73°F), similarly peaking at 34°C (94°F). However, February is significantly wetter, receiving 102 mm (4.0 in) of rainfall across 12 days, leading to higher humidity levels at 74%. For a detailed outlook, check out this link: Bloemfontein weather in February.
In comparing the weather of September and March, we can observe notable differences in temperature, precipitation, and humidity. September experiences a wider temperature range, with a minimum of -5°C (24°F) and an average of 17°C (62°F), while March has milder temperatures, beginning at a minimum of 8°C (47°F) and averaging 21°C (69°F). Although both months can reach similar maximum temperatures—34°C (93°F) in September and 34°C (94°F) in March—the overall warmth of March makes it feel more pleasant.
Precipitation levels also differ significantly; September has just 8 mm (0.3 in) of rain over 2 days, whereas March sees a substantial increase to 71 mm (2.8 in) spread across 8 days, leading to higher humidity at 79%. This increased moisture in the air during March can make it feel more humid compared to September's 63%. For a more detailed analysis of March weather, you can visit Bloemfontein weather in March.
When comparing the weather in September and April, one can observe some notable differences. September experiences a wider temperature range, with nighttime lows reaching a chilly -5°C (24°F) and daytime highs soaring to 34°C (93°F). The month is relatively dry, with only 8 mm (0.3 in) of precipitation over just 2 days and a humidity level of 63%. In contrast, April offers milder minimum temperatures starting at 2°C (37°F) and maximum temperatures around 33°C (92°F), alongside a significant increase in rainfall totaling 73 mm (2.9 in) across 9 days, resulting in higher humidity levels at 83%. For more insights on the April weather, you can visit Bloemfontein weather in April.
In comparing the weather of September and May, we see notable differences in temperature and humidity. September boasts a broader temperature range, with a minimum of -5°C (24°F) and a maximum reaching 34°C (93°F), resulting in an average of 17°C (62°F). In contrast, May’s temperatures are milder, with a minimum of -3°C (26°F) and a maximum of 26°C (79°F), leading to an average of 13°C (55°F). Additionally, May experiences higher humidity at 84%, compared to September's 63%. While both months receive precipitation on the same number of days, September records less rainfall (8 mm or 0.3 in) compared to May's 12 mm (0.5 in). For a closer look at the weather in May, you can check Bloemfontein weather in May.
When comparing the weather in September to that of June, notable differences emerge in both temperature and humidity levels. September experiences a broader temperature range, with minimums around -5°C (24°F) and maximums reaching up to 34°C (93°F), resulting in an average temperature of 17°C (62°F). In contrast, June has a cooler overall climate, featuring temperatures that range from a minimum of -7°C (20°F) to a maximum of 25°C (77°F), with a lower average of 10°C (49°F). Additionally, September sees slightly more precipitation at 8 mm (0.3 inches) over two days, while June remains dry with only 3 mm (0.1 inches) and no rainy days. Humidity also varies, as June maintains a higher level at 79%, compared to September's humidity of 63%. For more detailed insights, you can check Bloemfontein weather in June.
In comparing the weather of September to July, it is evident that September experiences a broader temperature range, with minimums of -5°C (24°F) and maximums reaching up to 34°C (93°F), while July has a more moderate range with minimums of -6°C (22°F) and maximums of only 25°C (77°F). September sees an average temperature of 17°C (62°F), significantly warmer than July's average of just 9°C (48°F). Additionally, September receives slightly more precipitation at 8 mm (0.3 in) over two days, compared to July's 4 mm (0.1 in) with no recorded rainy days. Humidity levels are also a bit lower in September at 63%, compared to July's 69%. For a more detailed look at July weather, visit Bloemfontein weather in July.
September generally experiences warmer weather compared to August. The minimum temperature in September can drop to -5°C (24°F), similar to August, but the average temperature rises to 17°C (62°F), significantly higher than August's average of 12°C (54°F). September also boasts higher maximum temperatures, reaching up to 34°C (93°F) compared to August’s maximum of 28°C (83°F). Additionally, September has less precipitation, with only 8 mm (0.3 in) over 2 days, while August recorded 13 mm (0.5 in) over just 1 day. Humidity levels remain relatively consistent, with September at 63% and August at 60%. For more detailed information, you can check Bloemfontein weather in August.
September and October exhibit notable differences in weather patterns. September experiences a broader temperature range, with minimums dipping to -5°C (24°F) and maximums reaching up to 34°C (93°F), while October has milder minimums of 2°C (36°F) and higher maximums peaking at 36°C (97°F). Precipitation increases significantly in October, with 39 mm (1.5 in) over 4 days compared to September’s 8 mm (0.3 in) over just 2 days, indicating a shift towards more rainy periods. Humidity levels remain relatively similar, with September at 63% and October slightly lower at 61%. For more detailed insights, check the Bloemfontein weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a chilly minimum of -5°C (24°F) to a pleasant average of 17°C (62°F) and can spike to a maximum of 34°C (93°F). The month sees low precipitation of just 8 mm (0.3 in) over only 2 days, with humidity at a comfortable 63%. In contrast, November experiences a milder minimum of 2°C (37°F) and a higher average temperature of 21°C (71°F), alongside scorching highs reaching up to 37°C (99°F). Rainfall increases significantly to 53 mm (2.1 in) spread over 7 days, and humidity rises slightly to 67%. For a more detailed look at November's weather, check out Bloemfontein weather in November.
When comparing the weather in September and December, we see a noticeable shift in temperature and precipitation patterns. September typically experiences a broader temperature range, with a minimum of -5°C (24°F) and a maximum reaching 34°C (93°F), averaging around 17°C (62°F). The month is relatively dry, with only 8 mm (0.3 in) of precipitation spread over 2 days and humidity at 63%. In contrast, December brings warmer weather, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 38°C (101°F), averaging about 23°C (73°F). This month is significantly wetter, receiving 97 mm (3.8 in) of rain on approximately 11 days, while humidity increases to 75%. For more details on the December climate, you can check the link Bloemfontein weather in December.
As September unfolds in Bloemfontein, the weather begins to shift from the winter chill to a more temperate embrace. With warm days averaging around 17°C and occasional peaks up to 34°C, residents and visitors alike can savor the delightful transition into spring. The air, while rejuvenating, carries a hint of humidity at 63%, giving way to refreshing mornings and evenings. Rainfall, though minimal with just a couple of days of precipitation, further enhances the landscape's vibrancy. This pleasant blend of warmth and moderate moisture distinguishes September from the cooler winter months, inviting everyone to enjoy the burgeoning beauty of the season. For more insights into the climate patterns throughout the year, explore Bloemfontein Climate.