Last updated: October 30, 2025
In September, Gwangju, South Korea, experiences a diverse climate characterized by warm temperatures and notable humidity. The maximum temperature can reach up to 32°C (89°F), while the average hovers around a pleasant 21°C (71°F). However, nights can be cooler, with a minimum of 9°C (48°F). This month also sees approximately 204 mm (8.0 in) of rainfall spread over 11 days, contributing to the region's 80% humidity. Overall, September offers a blend of warm days and refreshing nights, perfect for those looking to explore the vibrant city while accommodating occasional rain.
September in Gwangju, South Korea, marks a delightful transition into autumn, with temperatures reflecting a pleasant shift. The month opens with minimums around 9°C (48°F), providing a crisp feeling in the mornings, while the average temperature hovers at a comfortable 21°C (71°F). As the days progress, warmth sets in, peaking at a maximum of 32°C (89°F), making it a time of fluctuating warmth that still hints at the seasonal change ahead. This period is characterized by a decline from the intense summer heat experienced in August, which had maximums soaring to 37°C (99°F). Overall, September offers an inviting climate for outdoor activities and cultural explorations, as Gwangju's vibrant landscapes start to don their autumn attire.
In September, Gwangju experiences a notable uptick in precipitation, with 204 mm (8.0 in) of rain falling over 11 days. This marks a continuation of the summer's wet pattern, where July and August set records with their heavy rainfall. The transition into autumn showcases Gwangju's shift from the sweltering heat and humidity of summer to cooler, yet still moist conditions. This month’s rainfall, while substantial, is slightly less than the deluge of July but maintains the trend of frequent precipitation, illustrating the region's propensity for a wet climate as it heads towards the dryer months of October and November.
In Gwangju, South Korea, September marks a transitional phase in humidity levels, dipping to 80% after the peak of the summer months. This slight reduction follows a sweltering July and August, where humidity soared to 95% and 93%, respectively. The autumnal shift not only brings a welcome decrease in moisture but also signals the gradual approach toward drier months ahead. Overall, the trend reveals that while September is still part of the humid season, it offers a refreshing respite compared to the intense summer heat, setting the stage for October's further decline to 78%. The journey through Gwangju’s monthly humidity showcases the rhythm of the seasons, where each month harmonizes the delicate balance of comfort and climate.
As September rolls in Gwangju, South Korea, the UV Index remains notably high at 10, signaling a very high risk of harm from unprotected sun exposure. This is a slight decrease from the extreme levels experienced during the peak summer months of July and August, but it still demands caution. With a burn time of just 15 minutes, it's essential for residents and visitors to take protective measures when heading outdoors. This month marks the transition into autumn, where the UV Index begins to decline, falling to 7 in October. However, with the lingering intensity of late summer, it's crucial to stay vigilant. For more detailed information on UV levels and safety precautions, visit Gwangju UV Index.
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September in Gwangju, South Korea, brings a delightful transition from the height of summer to the crispness of autumn, capturing the essence of changing seasons. With 258 hours of sunshine, the month sees a slight dip from the summer peak, yet it comfortably maintains the brightness that characterizes the year’s latter half. Following a vibrant summer where July and August boasted over 290 hours of sunshine, September's warmth still invites outdoor activities and late-season festivals. As daylight begins to wane, the city enjoys a serene balance, paving the way for October’s return to longer, though still abundant, sunny days. This gradual ebb and flow of sunlight not only highlights a distinctive pattern but also sets a picturesque backdrop for Gwangju’s vibrant autumn beauty.
September in Gwangju, South Korea, tends to showcase a mildly sunny disposition, with a 29% chance of sunshine. This marks a slight recovery from the peak of summer, where the likelihood of clear skies dwindles to its lowest in July and August, at just 17% and 26% respectively. As the region transitions into autumn, the sun begins to make more frequent appearances compared to these summer months. Looking ahead, October and November offer even greater prospects for clear weather, with chances of sunshine rising to 47% and 53% respectively. Thus, while September may not be the sunniest month, it certainly hints at the vibrant days to come, making it a transitional period in Gwangju's climate narrative.
As summer fades in Gwangju, South Korea, September brings a gentle decline in daylight hours, dropping to 12 hours from the 14 hours enjoyed in the peak summer months of June through August. This transition signals the start of autumn, as days gradually shorten towards the cooler months. Following September, daylight will continue to wane, with October offering just 11 hours and November trailing down to 10 hours. The rhythm of the year is unmistakable, showing a steady decrease from the abundant light of spring and summer to the introspective twilight of winter, embracing the cyclical nature of time in this vibrant city.
As September settles in Gwangju, South Korea, the winds begin to breathe a subtle vibrancy into the air, averaging 2.1 m/s (5 mph). This marks a gentle increase compared to the sultry summer months of July and August, where the wind speed dipped to its lowest at 1.7 m/s (4 mph). The cooler, refreshing gusts of early autumn signal a transition from the stagnant summer heat, reminiscent of April's and May's more lively breezes, both hovering around 2.8 m/s (6 mph). As the month progresses, Gwangju experiences a serene yet invigorating atmosphere that sets the stage for the upcoming seasonal changes, showcasing a clear trend of increasing wind speeds that hint at the approaching fall.
Weather in Gwangju varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Gwangju, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warm temperatures, with daily averages around 21°C (71°F) and maximums reaching up to 32°C (89°F), accompanied by high humidity levels at 80%. This month experiences significant precipitation, totaling 204 mm (8.0 in) over 11 days, making it a relatively wet time. In contrast, January brings a stark shift to cold conditions, with temperatures dropping to a minimum of -22°C (-8°F) and an average of just 0°C (33°F). Precipitation is minimal, at only 31 mm (1.2 in) over 5 days, and humidity decreases to 71%. For a more detailed look at Gwangju's winter climate, visit Gwangju weather in January.
The weather in September and February presents a stark contrast. In September, temperatures range from a cool 9°C (48°F) at night to a warm 32°C (89°F) during the day, accompanied by substantial rainfall of 204 mm (8.0 in) over 11 days, resulting in high humidity levels of 80%. In contrast, February experiences much colder weather, with temperatures dipping as low as -12°C (12°F) and averaging around 2°C (36°F), while only receiving 33 mm (1.3 in) of precipitation across 5 days, leading to a lower humidity of 68%. This comparison highlights the marked differences in seasonal weather patterns, making September feel much more temperate and humid compared to the frigid and dry conditions of February. For more details, check out Gwangju weather in February.
September experiences much warmer temperatures, with averages around 21°C (71°F) and maximums reaching up to 32°C (89°F), while March is notably cooler, averaging just 8°C (46°F) and topping out at 23°C (74°F). The latter part of the year also sees a significant increase in precipitation during September, totaling 204 mm (8.0 in) over 11 days, compared to the much lighter rainfall of 70 mm (2.8 in) over only 7 days in March. Additionally, September has higher humidity levels at 80%, while March is more comfortable with a humidity of 67%. For more detailed insights, check out Gwangju weather in March.
September and April present distinct weather patterns, showcasing the transition from late summer to early autumn and the lingering chill of early spring, respectively. In September, temperatures range from a minimum of 9°C (48°F) to a maximum of 32°C (89°F), with an average of 21°C (71°F) and a notable 204 mm (8.0 in) of rainfall over 11 days, resulting in a humid atmosphere with 80% humidity. In contrast, April experiences cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 28°C (83°F), averaging around 13°C (55°F). It sees less precipitation at 66 mm (2.6 in) over just 6 days, while humidity remains slightly lower at 78%. For a closer look at April weather specifics, check Gwangju weather in April.
When comparing the weather in September and May, notable differences emerge in temperature and precipitation patterns. September experiences a broader temperature range, with minimums around 9°C (48°F) and maximums reaching up to 32°C (89°F). In contrast, May starts cooler, with minimums dipping to 2°C (36°F) but shares the same maximum of 32°C (89°F). Precipitation is significantly higher in September, totaling 204 mm (8.0 in) over 11 days, compared to May’s 92 mm (3.6 in) spread across just 8 days. Additionally, humidity levels are slightly higher in May at 85%, while September sees a humidity of 80%. For a more detailed outlook, you can check Gwangju weather in May.
September and June display notable differences in weather patterns. In September, temperatures range from a minimum of 9°C (48°F) to a maximum of 32°C (89°F), with an average temperature of 21°C (71°F). The month experiences considerable rainfall, with 204 mm (8.0 in) spread over 11 days and an average humidity of 80%. Conversely, June has slightly warmer conditions, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 33°C (91°F) and an average of 22°C (72°F). Rainfall in June is less intense, totaling 157 mm (6.2 in) over 9 days, but the humidity is higher at 87%. For more detailed insights into June weather, you can visit Gwangju weather in June.
September weather features cooler temperatures with a minimum of 9°C (48°F) and an average of 21°C (71°F), while July is distinctly warmer, boasting a minimum of 16°C (62°F) and an average of 25°C (78°F). While September can reach a maximum of 32°C (89°F), July often peaks at 35°C (96°F), making it the hotter month overall. Both months experience significant rainfall, with September seeing 204 mm (8.0 in) over 11 days and July slightly wetter at 242 mm (9.5 in) over 17 days. Additionally, July's humidity is considerably higher at 95%, compared to September's 80%, contributing to July's more muggy conditions. For a detailed look at July in Gwangju, visit Gwangju weather in July.
In comparing the weather of September and August, September tends to be cooler with a minimum temperature of 9°C (48°F) and an average of 21°C (71°F), while August has warmer conditions, featuring a minimum of 14°C (58°F) and an average of 26°C (80°F). The maximum temperatures also reflect this trend, with September peaking at 32°C (89°F) compared to August's high of 37°C (99°F). Both months experience significant rainfall, with September receiving 204 mm (8.0 in) over 11 days, slightly more than August’s 199 mm (7.8 in) in 15 days. Additionally, humidity levels are higher in August at 93%, contrasted with 80% in September. For more details, check out Gwangju weather in August.
September typically features warmer temperatures, with a minimum of 9°C (48°F) and an average of 21°C (71°F), reaching a high of 32°C (89°F). This month also experiences significant rainfall, totaling 204 mm (8.0 in) over 11 days, coupled with a humidity level of 80%. In contrast, October brings a pronounced drop in temperature, with a minimum of 0°C (32°F) and an average of 15°C (59°F), peaking at 29°C (85°F). Precipitation decreases substantially to 74 mm (2.9 in) over just 6 days, and humidity slightly lowers to 78%. For more detailed insights, visit Gwangju weather in October.
September and November exhibit stark contrasts in weather patterns. September boasts warmer temperatures with an average of 21°C (71°F), peaking at 32°C (89°F), while November's temperatures significantly drop, averaging just 8°C (47°F) and reaching a maximum of 22°C (72°F). Precipitation levels are notably higher in September, at 204 mm (8.0 in) over 11 days, compared to a mere 34 mm (1.3 in) over just 5 days in November. Additionally, humidity remains relatively high in both months but slightly decreases from 80% in September to 76% in November. For more detailed information, you can check Gwangju weather in November.
The weather in September and December presents a stark contrast. September experiences warmer temperatures with a minimum of 9°C (48°F) and an average of 21°C (71°F), peaking at a maximum of 32°C (89°F). In addition, it sees significant rainfall, with 204 mm (8.0 in) of precipitation over 11 days and high humidity at 80%. In contrast, December brings cold weather, where temperatures drop to a minimum of -14°C (6°F), with an average of just 2°C (36°F) and a maximum of 18°C (65°F). Precipitation is markedly lower at 29 mm (1.2 in) across only 5 days, and humidity decreases to 73%. For more details, you can check Gwangju weather in December.
As summer transitions into autumn, September in Gwangju presents a unique blend of warmth and humidity that distinguishes it from other months. With daily temperatures averaging a pleasant 21°C (71°F), you can still expect warm days that occasionally peak at 32°C (89°F) before giving way to cooler evenings. This month also brings increased rainfall, averaging 204 mm over 11 days, making it one of the wetter periods of the year. The high 80% humidity can make the air feel quite muggy, a stark contrast to the dryer conditions found in late autumn. For those intrigued by weather patterns and trends in Gwangju, further details can be explored at Gwangju Climate.