September Weather in Greytown, South Africa

Last updated: August 31, 2025

In September, Greytown, South Africa experiences a diverse range of weather conditions, marked by a striking temperature span with maximums reaching up to 37°C (98°F) and a comfortable average of 17°C (63°F). As autumn approaches, evenings can become chilly, dipping to a minimum of 3°C (37°F). The month sees a total precipitation of 38 mm (1.5 in), spread over 6 days, contributing to the region's lush landscapes. With humidity levels at 85%, this period is characterized by a mix of warmth and moisture, fostering a vibrant yet varied climate that defines Greytown's September weather.

September Temperature in Greytown

In September, Greytown, South Africa experiences a refreshing transition with temperatures that begin to hint at the approaching warmth of spring. The month sees a minimum of 3°C (37°F), gradually rising to an average of 17°C (63°F), and peaking at a high of 37°C (98°F). This marks a noticeable rise from the chilly depths of winter, indicating a shift towards more comfortable and pleasant days. As the days lengthen and the sun grows stronger, September serves as a bridge between the cooler winter months and the vibrant heat of summer, making it an ideal time for outdoor activities and exploration in this charming region.

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

The chart illustrates September temperature patterns in Greytown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greytown, 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).
JanFebMarAprMayJunJulAugSepOctNovDec707069645954545862646669
Data source: Temperature data for Greytown generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Greytown

September in Greytown, South Africa, heralds a transition as winter's grip loosens, bringing a modest precipitation amount of 38 mm (1.5 in) over six days. This marks an increase from the extremely dry winter months of June and July, which saw negligible rainfall. As spring approaches, the precipitation levels begin to rise again, hinting at the lush growth to come in the following months. The trend reveals a steady build-up towards the more substantial rains typical of late spring and summer, with October expected to bring 63 mm (2.5 in). This gradual uptick serves as a reminder of nature's rhythm, as Greytown shifts from the chilly, parched days of winter into a season ripe with potential and rejuvenation.

September Precipitation Trends in Greytown

The chart displays monthly precipitation patterns in Greytown, 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 Greytown, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec9013161503665223864108133
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Greytown

In September, Greytown experiences a humidity level of 85%, marking a notable shift as it transitions from the slightly lower levels observed in the preceding months of July and August, which recorded 80% and 79%, respectively. This uptick in humidity indicates a return to the more humid conditions typical of late winter and early spring in the region. As the year progresses, the humidity steadily climbs, reaching higher averages of 86% in the following months of October and November, suggesting that residents and visitors alike can expect a moist atmosphere as the warmer season approaches. This consistent pattern highlights Greytown's climatic character, where high humidity remains a defining feature throughout the year.

September Average Humidity in Greytown

This chart illustrates the average monthly humidity levels in Greytown, 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 Greytown is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%86%86%80%80%80%85%86%87%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Greytown

In September, Greytown experiences a UV Index of 10, reflecting a very high exposure category with a burn time of just 15 minutes. This slight increase from the moderate conditions of previous months indicates that as spring approaches, sun intensity is on the rise. It's essential to remain vigilant during this time, as exposure levels can lead to skin damage in brief periods. Following September, the UV Index escalates even further, reaching an extreme level by October. Overall, the trend showcases a transition towards more intense sun exposure as the year progresses. For detailed UV forecasts and to stay safe in the sun, visit Greytown UV Index.

Maximum UV Index Levels in Greytown for September

The chart shows the monthly maximum UV Index (UVI) for Greytown 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 Greytown typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151210655810121315
Data source: Greytown 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 Greytown

As September arrives in Greytown, South Africa, the sun shines brilliantly, offering 318 hours of warm daylight—a delightful prelude to the vibrant spring season. This month marks a steady increase in sunshine hours, following a consistent upward trend from the preceding winter months. With sunlight gradually intensifying from the 287 hours in June to a remarkable 341 hours in October, September serves as a transitional bridge, blending the cozy farewell of winter with the invigorating embrace of spring. The growing luminosity not only enhances the beauty of the surrounding landscapes but also infuses the community with energy and optimism, setting the stage for a lively outdoor season ahead.

Monthly Sunshine Duration in Greytown: September Highlighted

The September sunshine duration represents the total number of hours Greytown 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.
JanFebMarAprMayJunJulAugSepOctNovDec288h310h338h310h304h287h307h314h318h341h338h354h
Data source: Greytown September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Greytown During September

In Greytown, South Africa, the likelihood of sunny weather in September stands at 51%, marking a notable peak as the region transitions from the winter months. Following the impressive 84% sunshine in July, the chances slightly dip but remain relatively favorable. After August's 62%, September maintains a balance of sun and clouds, providing a pleasant backdrop for outdoor activities. As spring arrives, residents can look forward to more frequent sunny days, though the weather will soon begin to shift again as October approaches with a reduced 35% chance of clear skies. This trend indicates a gradual ebb and flow of sunshine, perfect for enjoying the changing seasons in this charming town.

Percentage of Sunny Days in September in Greytown

The chart illustrates the percentage of sunny days in Greytown 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 Greytown experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%22%48%54%64%77%85%62%51%35%30%22%
Data source: Greytown September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Greytown in September

As September arrives in Greytown, South Africa, residents experience a transition in daylight, with the sun gracing the skies for about 11 hours each day. This duration reflects a slight uptick from the depths of winter in June, July, and August, where daylight peaked at just 10 hours. September's daylight duration hints at the gradual return of longer days as the seasons shift, paving the way for the more abundant 12 hours of daylight expected in October. The oscillation of daylight throughout the year illustrates the region's gentle rhythm, moving from the lush, long days of summer in January and February with a full 13 hours, to the cozy, shorter days of winter in May. As the spring season approaches, the promise of brighter, longer days awaits.

Average Daylight Hours in Greytown for September

The chart illustrates the variation in daylight duration in Greytown throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 44m13h 4m12h 13m11h 21m10h 38m10h 17m10h 28m11h 6m11h 55m12h 47m13h 33m13h 57m
Data source: Greytown daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Greytown

As September arrives in Greytown, South Africa, the breeze picks up, with an average wind speed of 2.5 m/s (6 mph), matching the higher winds of August and marking a notable shift as the seasons transition. The wind speed in September continues a trend observed in the late winter months, where breezes gradually strengthen, hinting at the approach of spring. This invigorating wind pattern not only refreshes the landscape but also signals a vibrant change in the region. Following this peak in September, October and November promise a slight increase, with average speeds of 2.7 m/s (6 mph), maintaining a gentle atmosphere while preparing for warmer days ahead.

Average September Wind Speed in Greytown

The chart displays monthly wind speed patterns in Greytown, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.02.12.02.02.22.22.52.5 m/s2.72.72.4
Data source: Greytown September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Greytown Compares to Other Months

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

In September, temperatures range from a cool 3°C (37°F) at night to a comfortable average of 17°C (63°F) during the day, peaking at a hot 37°C (98°F). The month receives around 38 mm (1.5 in) of precipitation over approximately six days, and humidity remains relatively high at 85%. In contrast, January experiences milder overnight lows of 11°C (52°F) and warmer daytime averages of 21°C (70°F), with highs reaching up to 38°C (100°F). However, it also sees increased rainfall, totaling 89 mm (3.5 in) over about 13 days, while maintaining the same humidity level of 85%. For more information on January weather, visit Greytown weather in January.

When comparing the weather in September and February, notable differences emerge. September boasts a wider temperature range, with minimums dipping to 3°C (37°F) and maximums soaring to 37°C (98°F), while February features milder temperatures, with minimums around 11°C (51°F) and maximums reaching 36°C (96°F). Additionally, February experiences significantly more rainfall, accumulating 131 mm (5.1 in) over 17 days, compared to September's lighter 38 mm (1.5 in) over just 6 days. Both months maintain high humidity levels of around 85% and 86%, respectively, making the air feel similarly moist year-round. For a closer look at February's climate specifics, check out Greytown weather in February.

In September, Greytown experiences a temperature range with a minimum of 3°C (37°F) and a maximum of 37°C (98°F), averaging at 17°C (63°F). The month sees relatively low precipitation, amounting to 38 mm (1.5 in) across just 6 days, while humidity stays high at 85%.

In contrast, March offers warmer temperatures, with a minimum of 11°C (53°F) and a maximum reaching 34°C (94°F), averaging 21°C (69°F). Precipitation increases to 61 mm (2.4 in) over 12 days, and humidity remains slightly higher at 86%. For more specifics on March weather conditions, visit Greytown weather in March.

In September, the weather exhibits a broader temperature range, with minimums reaching as low as 3°C (37°F) and maximums peaking at 37°C (98°F), resulting in an average temperature of 17°C (63°F). In contrast, April presents a milder profile with slightly warmer minimum temperatures of 7°C (44°F) and a higher overall average of 18°C (64°F), while maximums reach up to 35°C (95°F). September sees less precipitation, totaling 38 mm (1.5 in) over approximately 6 rainy days, compared to April's 50 mm (2.0 in) across 9 days. The humidity levels are quite comparable, with September at 85% and April slightly higher at 86%. For a more detailed look at the weather in April, you can check Greytown weather in April.

In September, temperatures in Greytown range from a chilly 3°C (37°F) to a sweltering 37°C (98°F), with an average of 17°C (63°F). The humidity is relatively high at 85%, and there is about 38 mm (1.5 in) of precipitation over approximately 6 days. In contrast, May sees cooler temperatures, with a minimum of 1°C (33°F) and a maximum of 31°C (88°F), averaging around 15°C (60°F). May has slightly lower precipitation at 36 mm (1.4 in) spread across 5 days and maintains a very similar humidity level at 86%. For more detailed weather information in May, visit Greytown weather in May.

September and June present distinct weather patterns, with September experiencing a broader temperature range, from a chilly minimum of 3°C (37°F) to a sweltering maximum of 37°C (98°F), averaging around 17°C (63°F). In contrast, June is generally cooler, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 28°C (83°F) and an average of 12°C (55°F). While September sees an increase in rainfall with 38 mm (1.5 in) over 6 days, June is notably drier, receiving only 6 mm (0.2 in) on approximately 1 day. Humidity levels in both months are relatively high, with September at 85% and June at 80%. For those interested in a detailed overview, visit Greytown weather in June.

When comparing the weather in September to that of July in Greytown, notable differences emerge. September experiences a broader temperature range with a minimum of 3°C (37°F) and an average of 17°C (63°F), peaking at a warm 37°C (98°F). This month also sees an increase in precipitation, averaging 38 mm (1.5 in) over six days, and a humidity level of 85%. In contrast, July is significantly cooler, with temperatures dipping as low as -2°C (29°F) and averaging 12°C (55°F), capping at 29°C (84°F). It remains drier with only 5 mm (0.2 in) of rain over just one day, and a slightly lower humidity of 80%. For more detailed information on July weather, visit Greytown weather in July.

September generally experiences warmer temperatures compared to August, with minimums of 3°C in September rising from 0°C in August, and average highs climbing to 37°C versus August's maximum of 31°C. Despite this increase in warmth, September sees slightly more precipitation at 38 mm over 6 days, compared to August's 22 mm over just 5 days. Additionally, humidity rises in September, reaching 85% compared to August's 79%, contributing to a more humid atmosphere. For a detailed look at August weather, you can visit Greytown weather in August.

In comparing the weather of September and October, September showcases a wider temperature range with a minimum of 3°C and a maximum of 37°C, averaging around 17°C. However, October presents slightly milder temperatures, with a minimum of 6°C and an average of 18°C, while the maximum reaches up to 38°C. Additionally, October experiences an increase in precipitation, totaling 63 mm over 12 days, compared to September's 38 mm over 6 days. Humidity remains relatively high in both months, with October slightly edging out at 86% compared to September's 85%. For more detailed weather information, you can check Greytown weather in October.

In September, the weather tends to be quite warm with average temperatures around 17°C (63°F) and a high reaching up to 37°C (98°F). However, it experiences relatively low precipitation levels, with just 38 mm (1.5 in) over about 6 days. The humidity remains fairly high at 85%. In contrast, November is slightly cooler, with an average temperature of 19°C (66°F) and similar high temperatures of up to 37°C (98°F). However, November sees a significant increase in rainfall, totaling 108 mm (4.2 in) over 15 days, and the humidity rises to 87%. For more detailed insights, you can visit Greytown weather in November.

In September, the weather features a wide temperature range, with minimums around 3°C (37°F) and maximums reaching 37°C (98°F), while averaging 17°C (63°F). This month experiences moderate precipitation of 38 mm (1.5 in) over approximately 6 days, accompanied by a humidity level of 85%.

Conversely, December brings warmer temperatures, with a minimum of 9°C (49°F) and a maximum of 38°C (101°F), resulting in a slightly higher average of 20°C (69°F). However, it also sees a significant increase in precipitation, totaling 133 mm (5.2 in) over 18 rainy days, while humidity remains comparable at 86%. This shift in weather patterns highlights a transition from the drier feel of September to a much wetter and more humid December. For more details on the December climate, visit Greytown weather in December.

Compare Greytown's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Greytown

As September unfolds in Greytown, the weather offers a refreshing transition from the winter chill to the onset of spring. With maximum temperatures climbing to 37°C and an average of 17°C, the days become noticeably warmer, inviting the vibrant bloom of the season. While the humidity levels remain high at 85%, occasional rainstorms, totaling 38 mm over about 6 days, provide much-needed relief and contribute to the lush landscape. Compared to other months, September is characterized by its delightful balance of warmth and moisture, making it an exciting time to experience the beauty of Greytown. For a deeper dive into the weather patterns, check out Greytown Climate.