Last updated: February 24, 2025
In Greenville, United States, the weather in September offers a dynamic mix of warm temperatures and vibrant autumnal shifts. With a maximum soaring to 35°C (95°F), residents enjoy an average of 23°C (74°F) before cooler evenings set in with a minimum of 9°C (48°F). Rain is a consistent visitor this month, as 132 mm (5.2 in) of precipitation falls over approximately 9 days, creating a lush backdrop for the changing season. Coupled with a humidity level of 76%, September in Greenville is characterized by a gentle warmth and occasional refreshing showers, marking the transition into fall.
In September, Greenville, United States experiences a delightful transition from the intense summer heat to more comfortable autumn temperatures. The month begins with a minimum temperature of around 9°C (48°F), while the average warms up to a pleasant 23°C (74°F), reflecting a shift towards milder days. With maximum temperatures peaking at a sizzling 35°C (95°F), you can still enjoy the lingering warmth of summer. Compared to the hotter summer months, September’s climate hints at a gradual cooldown, paving the way for the crisp days of fall ahead. This blend of warmth and coolness creates an inviting atmosphere for outdoor activities, making it a particularly enjoyable month to experience all that Greenville has to offer.
In September, Greenville experiences a notable uptick in precipitation, with 132 mm (5.2 in) of rain over 9 days of the month. This marks a slight increase compared to the previous month, August, which saw 121 mm (4.8 in) from 14 days. Interestingly, September's precipitation aligns closely with the patterns observed in the months leading into fall; it’s a time when rainfall typically transitions from the lush summer months to a diverse array of autumn weather. The overall trend indicates that while Greenville enjoys a relatively dry spell in early fall, September still maintains significant moisture, bridging the gap between the warm, humid summer and the cooler, more temperate autumn months.
In September, Greenville experiences a noticeable shift in humidity, dropping to 76%, which is on par with the drier conditions of August. This marks the transition into the autumn months, where humidity levels typically fluctuate. The trend throughout the year shows a high level of moisture, particularly in the winter months, with January and February both averaging around 86%. As summer wanes, the decreasing humidity in September provides a welcome respite before the moisture returns in the cooler months of October and November, when levels rise again to 80% and 88%, respectively. This cyclical pattern underscores Greenville's humid subtropical climate, balancing between the heavy humidity of winter and the lighter air of autumn.
As September rolls into Greenville, the UV Index lingers at a notable 9, categorizing it as very high and indicating a burn time of just 15 minutes. This month marks a slight decline from the extreme levels experienced during the peak summer months of June and July, when the UV Index consistently reached 11. However, it remains imperative for residents and visitors alike to remain vigilant, as late summer sun can still pose significant risks. Following September, the UV Index gradually decreases into the fall, but the very high levels in both August and September highlight a trend of intensified solar exposure during the transitional months. Be sure to check out the latest updates and recommendations for protecting your skin at Greenville UV Index.
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As summer fades into fall, September in Greenville brings a warm embrace of sunshine, totaling 290 hours this month. While this marks a notable reduction from the sun-drenched peaks of July and June with their impressive 345 and 320 hours, respectively, it still outshines the earlier months of the year. The transition is evident as September continues to bask in the afterglow of summer, offering more sunshine than October's 265 hours. This gradual decline in daylight signals the impending change of seasons, making September a perfect time to enjoy the lingering warmth before the cooler months settle in. The steady increase in sunshine from January's 168 hours to the vibrant timeline of late summer captures the essence of Greenville’s welcoming climate, blending adventure and tranquility in the sun’s soft glow.
As the summer months transition into September in Greenville, the chances of sunny weather begin to brighten, with a notable 50% probability of sunny days. This marks a shift from the lower percentages characteristic of earlier summer months; June, for instance, sees only a 31% chance of sunshine. The trend indicates that as the year progresses toward autumn, there is an increased likelihood of clear skies compared to the sultry summer months, which often trend lower in sunshine. Following September, the odds dip slightly again in October to 47%, yet the upswing in sunny days during September offers residents and visitors a pleasant opportunity to enjoy more outdoor activities before the cooler months set in.
In Greenville, United States, the rhythm of daylight unfolds strikingly through the year. As September arrives, residents can bask in approximately 12 hours of daylight, a gentle transition from the summer's peak of 14 hours in June and July. This gradual decrease hints at the approaching autumn, where the warmth of summer gradually gives way to the crispness of fall. Notably, daytime hours are longer in the spring and early summer, peaking at 14 hours, while the year draws to a close with shorter days, dipping to just 9 hours in December. As daylight wanes, Greenville's landscape transforms, showcasing nature's beautiful seasonal shifts.
As summer gracefully transitions into fall, September in Greenville sees a gentle breeze with an average wind speed of 1.9 m/s (4 mph). This slight uptick from the calmer summer months hints at the approach of more dynamic weather patterns in the coming season. Throughout the year, wind speeds in Greenville typically peak during the early months and maintain a consistent, albeit lighter, flow as the heat wanes. In September, the winds are softer compared to the brisker speeds recorded earlier in the year, echoing the mellowing warmth of autumn. This shift invites a change in atmosphere, setting the stage for the vibrant colors and cooling temperatures that mark the onset of fall.
The weather in Greenville changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Greenville and find detailed weather information for every month.
In September, the weather is warm and quite variable, with average temperatures around 23°C (74°F) and highs reaching up to 35°C (95°F), complemented by significant humidity at 76%. This month experiences more rainfall, with about 132 mm (5.2 in) over approximately nine days. In stark contrast, January brings much colder temperatures, with an average of 7°C (44°F) and nighttime lows dipping to -12°C (10°F). While January has less precipitation at 99 mm (3.9 in) over about eight days, the humidity rises to 86%, adding to the chilly atmosphere. For more detailed insights, you can visit Greenville weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a mild 9°C (48°F) at night to a scorching 35°C (95°F) during the day, with an average of 23°C (74°F). The month experiences 132 mm (5.2 in) of precipitation over about 9 days, coupled with a humidity level of 76%. In stark contrast, February's temperatures are much cooler, with a minimum of -5°C (24°F) and a maximum of 26°C (79°F), averaging only 10°C (50°F). February is also slightly wetter, receiving 144 mm (5.7 in) of rain over 13 days, along with a higher humidity of 86%. For more details about February weather, check Greenville weather in February.
September experiences warmer temperatures compared to March, with average highs reaching 23°C (74°F) and maximums soaring to 35°C (95°F), while March's averages hover at a cooler 12°C (54°F) and maximums peak at 31°C (87°F). Precipitation levels are relatively similar, with September recording 132 mm (5.2 in) over 9 days and March slightly lower at 109 mm (4.3 in) over 12 rainy days. Humidity is notably higher in March at 86%, contrasting with September's 76%. For a detailed look at weather patterns during this month, check out Greenville weather in March.
When comparing the weather in September and April, we see a significant shift in temperatures and conditions. September is notably warmer, with average temperatures reaching 23°C (74°F) and maximums peaking at 35°C (95°F). In contrast, April features a cooler average temperature of 16°C (62°F) and minimums dipping to -2°C (29°F). Precipitation levels are similar, with September recording 132 mm (5.2 in) and April slightly lower at 125 mm (4.9 in). Both months experience about nine days of rainfall, but April's humidity is slightly higher at 82%, compared to September's 76%. For more detailed insights, check out Greenville weather in April.
In September, the weather features a broader temperature range, with a minimum of 9°C (48°F) and a maximum reaching up to 35°C (95°F), while the average temperature is around 23°C (74°F). In contrast, May tends to be cooler with minimum temperatures at 5°C (41°F), averaging 21°C (70°F), and a maximum of 34°C (94°F). Both months experience significant precipitation, with September receiving 132 mm (5.2 in) over about 9 days and May slightly higher at 137 mm (5.4 in) over 11 days. Humidity is also higher in May at 85%, compared to 76% in September. For more details on the weather in May, you can visit Greenville weather in May.
In comparing the weather of September and June, we can observe some notable differences. September tends to have a broader temperature range, with minimums dipping to 9°C (48°F) and maximums reaching up to 35°C (95°F), resulting in an average temperature of 23°C (74°F). In contrast, June's temperatures are slightly milder, with minimums at 12°C (55°F) and maximums of 33°C (92°F), giving it an average of 24°C (76°F). Additionally, while September experiences 132 mm (5.2 in) of precipitation over about 9 days, June sees less rainfall at 87 mm (3.4 in) but over a longer duration of 15 days. The humidity levels are higher in June at 85%, compared to 76% in September, contributing to a more humid feel during the earlier summer month. For a more detailed look into the weather in June, you can visit Greenville weather in June.
When comparing the weather in September and July, notable differences emerge in temperature and precipitation. September offers a wider range of temperatures, with lows reaching 9°C (48°F) and highs peaking at 35°C (95°F), while averaging 23°C (74°F). In contrast, July maintains a higher minimum temperature of 16°C (61°F) and an average of 26°C (80°F) but shares the same maximum temperature of 35°C (95°F). Precipitation levels are also different; September sees 132 mm (5.2 in) of rain over 9 days, whereas July experiences less rain at 93 mm (3.7 in) over 16 days. Additionally, July has slightly higher humidity at 83%, compared to September's 76%. For more detailed insights, refer to the link: Greenville weather in July.
In September, the weather shows a notable shift compared to August. The minimum temperature drops to 9°C (48°F), while the average temperature is slightly lower at 23°C (74°F), compared to August's minimum of 15°C (60°F) and average of 26°C (79°F). Both months experience maximum temperatures of 35°C (95°F in September and 96°F in August), but September sees an increase in precipitation with 132 mm (5.2 in) over 9 days, compared to August's 121 mm (4.8 in) over 14 days. Despite the increase in rainfall in September, humidity remains consistent at 76% in both months. For more detailed insights into August weather, check out Greenville weather in August.
September and October show notable shifts in weather patterns. September experiences warmer temperatures with a minimum of 9°C and an average of 23°C, whereas October sees cooler minimums dropping to 0°C and an average of 18°C. While both months have similar precipitation levels, September has slightly higher rainfall at 132 mm compared to 129 mm in October, but October has one more rainy day. Humidity also rises in October, reaching 80% compared to September's 76%. For more details about October weather, check out Greenville weather in October.
September typically boasts warmer weather compared to November, with average temperatures ranging from a pleasant 23°C (74°F) to a maximum of 35°C (95°F). The month often experiences considerable humidity at 76%, along with significant rainfall totaling 132 mm (5.2 in) over about nine days. In contrast, November ushers in a cooler climate, with temperatures dropping to a minimum of -5°C (24°F) and an average of 11°C (51°F). Although it sees less rainfall at 95 mm (3.7 in) across eight days, November's humidity rises slightly to 88%. For more detailed insights on November weather, check out Greenville weather in November.
September and December present quite different weather profiles. In September, temperatures are generally warmer, ranging from a minimum of 9°C (48°F) to a maximum of 35°C (95°F), with an average of 23°C (74°F). The month is characterized by considerable precipitation, totaling 132 mm (5.2 in) over about 9 days, and a humidity level of 76%. In contrast, December experiences much cooler temperatures, with a minimum of -7°C (19°F) and a maximum of 24°C (75°F), averaging only 8°C (47°F). The precipitation remains similar at 130 mm (5.1 in) but occurs over slightly more days (10 days), while humidity increases to 88%. For more details on December weather, you can visit Greenville weather in December.
As September ushers in the transition from summer to fall in Greenville, the weather offers a unique blend of warmth and humidity that sets it apart from the preceding months. With maximum temperatures still reaching into the high 30s °C, the lingering summer heat is palpable, yet average conditions begin to cool, providing a refreshing shift. The 132 mm of rainfall across approximately nine days introduces a balanced rhythm of wet and dry spells, fostering the vibrancy of early autumn foliage. This month's notable humidity level of 76% adds a touch of tropical feel, distinguishing it from the upcoming drier fall months. To learn more about Greenville's overall climate patterns, visit Greenville Climate.