September Weather in Colesberg, South Africa

Last updated: August 31, 2025

In September, Colesberg, South Africa, experiences a fascinating blend of weather patterns that showcases the transition from winter to spring. With maximum temperatures soaring to 34°C (93°F), the region welcomes warmth after cooler months. The average temperature rests at a comfortable 16°C (60°F), while chilly nights can dip to an impressive low of -4°C (26°F). Residents and visitors can expect minimal rainfall, with only 9 mm (0.3 in) of precipitation over just one day, illustrating the dry climate typical of this time. The air holds a humidity level of 62%, adding a slight touch of warmth to the atmosphere. Overall, September in Colesberg is marked by dramatic temperature swings and a generally dry, pleasant climate ideal for exploring the beauty of this charming region.

September Temperature in Colesberg

In September, Colesberg experiences a delightful transition as the winter chill begins to dissipate, with temperatures ranging from a brisk -4°C (26°F) at night to a pleasantly warm 34°C (93°F) during the day. The average temperature settles at 16°C (60°F), marking a notable increase compared to the colder months preceding it. This month serves as a precursor to the warmer spring days ahead, showcasing a significant rise in daytime temperatures while still retaining a refreshing coolness at night. With the gradual warming trend, September becomes an inviting time to explore the natural beauty of this South African gem, as daytime wanderings become more comfortable and invigorating.

September Weather in Colesberg: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Colesberg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Colesberg, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec747269625549485160656973
Data source: Temperature data for Colesberg generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Colesberg

In September, Colesberg, South Africa experiences a modest increase in precipitation, receiving 9 mm (0.3 in) of rain over the course of a typical month. This usually occurs on just one day, highlighting the area's transition into spring as the drier winter months fade away. The September rainfall is a prelude to the more substantial downpours in October and November, where totals climb significantly to 19 mm (0.8 in) and 28 mm (1.1 in), respectively. This gradual upswing in precipitation provides a refreshing change in the landscape, setting the stage for the flourishing growth of spring.

September Precipitation Trends in Colesberg

The chart displays monthly precipitation patterns in Colesberg, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Colesberg, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec64853756103379192857
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Colesberg

As September rolls in, Colesberg, South Africa experiences a noticeable shift in humidity, dipping to 62%. This marks a recovery from the drier August, which saw a low at 58%. The trend indicates a gradual rise in humidity levels as the seasons transition, moving from the arid heights of winter back towards the more moisture-rich environment of spring. Throughout the year, humidity levels fluctuate, peaking in the late summer months of March and April, both reaching their highest at 77% and 81% respectively. This suggests that as the region welcomes spring, residents can expect a slight increase in humidity, setting the stage for the lushness and renewal that the season brings.

September Average Humidity in Colesberg

This chart illustrates the average monthly humidity levels in Colesberg, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Colesberg is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%70%77%82%81%77%70%58%62%58%59%65%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Colesberg

In September, Colesberg experiences a notable UV Index of 10, categorized as very high, with a burn time of just 15 minutes. This marks a shift from the milder conditions of mid-year, as the UV levels steadily rise after the winter months. Compared to the preceding months, September's index reflects an upward trend, leading into the extreme ratings that prevail toward the year's end. With UV exposure peaking in January and February at an alarming 15, residents and visitors alike should remain vigilant about sun protection. To explore more about UV levels throughout the year, check out Colesberg UV Index.

Maximum UV Index Levels in Colesberg for September

The chart shows the monthly maximum UV Index (UVI) for Colesberg in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Colesberg typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1515139655710121416
Data source: Colesberg September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Colesberg

As September unfolds in Colesberg, South Africa, the region enjoys 342 hours of sunshine, a delightful continuation of the warm, sun-drenched days that keep emerging after the winter chill. Following August’s 328 hours, the sunlight begins to intensify, paving the way for the vibrant days of spring. This month is part of an upward trend, leading into the hotter months, peaking in December with 416 hours. Notably, the gradual increase in daylight from June's 292 hours to September's figures not only adds warmth but also brings life and color back to the landscape, creating a captivating atmosphere for both locals and visitors alike. Colesberg transitions beautifully into the season of longer days, inviting everyone to bask in its plentiful sunshine.

Monthly Sunshine Duration in Colesberg: September Highlighted

The September sunshine duration represents the total number of hours Colesberg experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec335h349h364h316h312h292h309h328h342h378h391h416h
Data source: Colesberg September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Colesberg During September

As September rolls in Colesberg, South Africa, the likelihood of sunny weather remains quite favorable at 71%. This places the month in a comfortable middle ground compared to the preceding months, with a slightly stronger chance of sunshine than October and a notable decline from the peak of 86% in July. The trend shows that the southern winter months of June and July boast the highest probabilities of sun, while spring begins to emerge in September, maintaining a reliable share of bright days. With the sunny chances tapering off as the year progresses into late spring, September offers a delightful blend of warmth and clear skies, perfect for outdoor activities and enjoying the vibrant South African landscape.

Percentage of Sunny Days in September in Colesberg

The chart illustrates the percentage of sunny days in Colesberg throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Colesberg experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec57%71%68%68%76%79%86%80%71%71%68%59%
Data source: Colesberg September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Colesberg in September

As September arrives in Colesberg, South Africa, daylight begins to shift subtly, offering about 11 hours of sunshine each day. This month marks a transitional period, with daylight durations gradually increasing from the mid-winter months, where they lingered at 10 hours from June through August. Following September, the length of daylight will expand again in October to 12 hours, hinting at the impending arrival of spring and longer, brighter days ahead. The rhythm of daylight duration in Colesberg underscores the seasonal changes, providing both a sense of continuity and an invitation to relish the beauty of nature as it awakens.

Average Daylight Hours in Colesberg for September

The chart illustrates the variation in daylight duration in Colesberg throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 51m13h 8m12h 13m11h 18m10h 32m10h 10m10h 22m11h 1m11h 54m12h 50m13h 39m14h 5m
Data source: Colesberg daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Colesberg

As September rolls in over Colesberg, South Africa, the landscape begins to feel the invigorating embrace of more robust winds, with average speeds reaching 4.6 m/s (10 mph)—a notable uptick from the previous months. This shift reflects a trend of increasing windiness as the year transitions into spring, marking a peak in windy conditions that persists into October and November, where speeds consistently hover around 4.5 m/s (10 mph). While earlier months like April and May saw milder breezes, September stands out as a harbinger of change, ushering in the crisp energy of spring. The climb in wind speed not only enhances the fresh, invigorating atmosphere but also heralds exciting prospects for local activities and outdoor enthusiasts eager to embrace the season’s lively spirit.

Average September Wind Speed in Colesberg

The chart displays monthly wind speed patterns in Colesberg, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.04.23.73.43.54.03.94.14.6 m/s4.54.44.5
Data source: Colesberg September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Colesberg Compares to Other Months

Weather in Colesberg varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Colesberg, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, temperatures range from a chilly -4°C (26°F) at night to a warm 34°C (93°F) during the day, with an average of 16°C (60°F). The month features relatively low precipitation, with only 9 mm (0.3 in) recorded over just one day, and humidity levels around 62%. In contrast, January is noticeably warmer, with minimum temperatures of 9°C (49°F) and maximums reaching up to 38°C (101°F), yielding an average temperature of 24°C (75°F). This month experiences significantly higher precipitation at 64 mm (2.5 in) over seven days, and humidity also rises slightly to 68%. For more details, you can explore Colesberg weather in January.

When comparing the weather between September and February, notable differences emerge. September experiences a wider temperature range, with minimums dropping to -4°C (26°F) and maximums reaching up to 34°C (93°F), while February presents a milder climate, with temperatures starting from a minimum of 7°C (45°F) and peaking at an impressive 37°C (99°F). In terms of humidity, February is slightly more humid at 70%, compared to September's 62%. Moreover, precipitation in February is significantly higher, with 85 mm (3.4 in) spread over 11 days, as opposed to September's meager 9 mm (0.3 in) over just 1 day. For more details, you can check Colesberg weather in February.

September and March exhibit distinct differences in weather patterns. In September, temperatures range from a chilly minimum of -4°C (26°F) to a comfortable average of 16°C (60°F), peaking at a warm 34°C (93°F). Precipitation is minimal, with only about 9 mm (0.3 in) over just one day, resulting in a relatively low humidity level of 62%.

In contrast, March brings milder minimum temperatures starting at 5°C (42°F) and averages around 21°C (70°F), with maximums reaching up to 35°C (96°F). However, this month sees significantly higher rainfall, totaling 37 mm (1.5 in) spread across seven days, contributing to increased humidity at 77%. For more detailed information, check out Colesberg weather in March.

When comparing the weather in September and April, notable differences emerge. September typically features a much broader temperature range, with minimums dipping as low as -4°C (26°F) and maximums reaching up to 34°C (93°F). In contrast, April starts off slightly warmer with minimums at 2°C (36°F) and maintains an average temperature of 17°C (62°F). Additionally, April experiences significant rainfall, averaging 56 mm (2.2 in) over about 7 days, compared to September's minimal precipitation of just 9 mm (0.3 in) on only 1 day. The humidity also rises in April, sitting at 81% compared to September's 62%. For more details, you can refer to Colesberg weather in April.

September weather typically showcases a wider range of temperatures compared to May, with minimums dipping as low as -4°C (26°F) and maximums reaching up to 34°C (93°F). In contrast, May has a more moderate temperature profile, where the minimum is slightly higher at -3°C (27°F) and the maximum peaks at 28°C (82°F). September experiences minimal precipitation, averaging only 9 mm (0.3 in) over just one day, while May sees a bit more moisture with 10 mm (0.4 in) across two days. Additionally, humidity levels in May are higher at 81%, compared to September's 62%. For more detailed insights, you can check out Colesberg weather in May.

In September, the weather heats up considerably compared to June, with average temperatures reaching 16°C (60°F) and highs soaring to 34°C (93°F). In contrast, June experiences cooler temperatures, averaging around 10°C (50°F) with a maximum of only 24°C (76°F). Both months see minimal precipitation, with September receiving 9 mm (0.3 in) over just one day, while June has even less at 3 mm (0.1 in) on a single day. Notably, humidity levels are higher in June at 77%, compared to 62% in September, making the air feel a bit more comfortable in early spring. For more insights on June weather, you can visit Colesberg weather in June.

Comparing the weather in September and July reveals some interesting contrasts. In September, temperatures range significantly, with a minimum of -4°C and a maximum of 34°C, leading to a much warmer average of 16°C. In contrast, July experiences a cooler climate with an average temperature of only 9°C, peaking at 24°C and dipping to -7°C. Precipitation levels are relatively low in both months, with September seeing 9 mm over just one day, while July has a mere 3 mm of rain on a single day. Humidity is slightly higher in July at 70%, compared to September's 62%. For further details on July's weather, you can check Colesberg weather in July.

In September, the weather showcases a more significant temperature range compared to August, with lows dipping to -4°C (26°F), an average of 16°C (60°F), and highs reaching up to 34°C (93°F). This is a marked increase from August, where the minimum temperatures are the same at -4°C (24°F) but the average is notably cooler at 10°C (51°F) and maximums cap at 28°C (83°F). Both months experience low precipitation, with September recording 9 mm (0.3 in) over 1 day and August slightly less at 7 mm (0.3 in) also over 1 day. Humidity levels are slightly higher in September at 62%, compared to 58% in August, indicating a bit more moisture in the air as the season transitions. For more detailed information on August weather, check out Colesberg weather in August.

September and October both offer a range of temperatures, but October tends to be slightly warmer with a higher maximum temperature of 36°C (98°F), compared to September's max of 34°C (93°F). While September experiences average temperatures around 16°C (60°F), October's average rises to 18°C (66°F). Precipitation increases in October with 19 mm (0.8 in) over three days, compared to only 9 mm (0.3 in) over one day in September. Interestingly, humidity remains fairly similar in both months, at 62% in September and 58% in October. For more detailed information, check out Colesberg weather in October.

In September, the weather exhibits a significant range in temperatures, with a minimum of -4°C (26°F) and a maximum of 34°C (93°F), resulting in an average of 16°C (60°F). The month is relatively dry, receiving just 9 mm (0.3 in) of precipitation over one day and boasting a humidity level of 62%. In contrast, November presents warmer conditions, featuring a minimum temperature of 3°C (39°F) and an impressive maximum of 38°C (101°F), which gives an average of 21°C (69°F). November is also wetter, with total precipitation rising to 28 mm (1.1 in) over three days, while the humidity slightly decreases to 59%. For more details, check out Colesberg weather in November.

In comparing the weather between September and December, September experiences a wider temperature range with a minimum of -4°C (26°F) and a pleasant average of 16°C (60°F), peaking at 34°C (93°F). Precipitation is minimal during this month, with only 9 mm (0.3 in) and just one rainy day, resulting in a humidity level of 62%. In contrast, December brings milder minimum temperatures of 6°C (44°F) and a higher average of 23°C (73°F), with maximum temperatures soaring to 37°C (100°F). This month sees significantly more precipitation at 57 mm (2.2 in) over seven days and a slightly higher humidity of 65%. For more detailed insights, you can check Colesberg weather in December.

Compare Colesberg's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Colesberg

September in Colesberg marks the transition from the chilly grip of winter to the warmth of spring, showcasing temperatures that significantly surpass those of the previous months. With a maximum soaring to a toasty 34°C (93°F), the pleasant average of 16°C (60°F) and even the rare drop to -4°C (26°F) illustrate the weather's dynamic nature. This month is particularly notable for its low precipitation, with only one day of rain contributing to a mere 9 mm (0.3 in). The relative humidity of 62% adds a layer of warmth as the landscape begins to bloom. For a deeper dive into the nuances of Colesberg's weather throughout the year, visit Colesberg Climate.