Last updated: October 30, 2025
September in Gongju, South Korea, offers a dynamic climate ideal for embracing the transition from summer to autumn. With maximum temperatures peaking at 31°C (88°F) and an average of 21°C (71°F), the weather provides a comfortable backdrop for outdoor activities. However, as the month progresses, locals and visitors alike should prepare for occasional rain, with an average precipitation amount of 158 mm (6.2 in) spread over 9 days, creating a lush environment. Coupled with a humidity level of 77%, this month captures the essence of late summer charm blended with the freshness of fall.
In September, Gongju, South Korea begins to transition into the mild embrace of autumn, offering a refreshing reprieve from the summer heat. With minimum temperatures around 8°C (47°F) and averages peaking at a comfortable 21°C (71°F), the month showcases a delightful blend of warmth and cool breezes. The maximum temperatures soar to around 31°C (88°F), providing sunny days perfect for outdoor activities. This gradual shift is indicative of the region's climatic pattern, where summer's intensity gently ebbs away, paving the way for the crispness of fall, making September an ideal time to explore the scenic beauty of Gongju.
In September, Gongju, South Korea, experiences a notable shift in precipitation patterns, receiving 158 mm (6.2 in) of rain over 9 days. This significant amount reflects the tail end of the monsoon season, contributing to a cumulative summer total that peaks in the preceding months of July and August, where rainfall reaches a staggering 235 mm and 228 mm, respectively. As the summer rains gradually subside, September's precipitation remains substantial, still benefiting the lush landscapes typical of this season while hinting at the upcoming transition to drier autumn months. The slight decrease in both volume and rainy days from the summer months showcases nature's cyclical rhythm, as Gongju prepares to embrace the cooler, clearer days of fall.
In September, Gongju experiences a noticeable shift in humidity as the summer heat begins to wane, dropping to 77%. This reduction marks a transition from the peak levels of 91% seen in both July and August, suggesting that the oppressive summer humidity is finally receding. Following the trend of the previous months, September's levels indicate a gradual approach to the drier autumn months. As the year progresses, humidity fluctuates, peaking in the summer before settling into more moderate figures in the fall, with October rising slightly to 79%. The overall pattern illustrates Gongju's humid subtropical climate, characterized by high humidity in the summer months, making the relief of fall a welcome change for residents and visitors alike.
As summer transitions into autumn, September in Gongju, South Korea, experiences a notable decline in UV Index values, moving down to 10, categorized as very high. This indicates that while the risk of harm from unprotected sun exposure remains significant, it is slightly less intense than the sweltering months of June, July, and August, which consistently feature an extreme UV Index of 11. With a burn time of just 15 minutes, caution is still essential for outdoor activities as the sun's rays can be deceivingly strong during this time. Overall, the month's UV trends demonstrate a gradual moderation, paving the way for cooler autumn days ahead. For more detailed information, visit Gongju UV Index.
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As September unfolds in Gongju, South Korea, the city basks in 251 hours of sunlight, marking a transition into autumn. This month follows the peak of summer, where June dazzled with 311 hours of radiant sunshine, a high point in the year. September's brightness reflects a gentle decline from the vibrant summer months, yet still offers more than enough sunny days to enjoy the picturesque landscapes and historical sites. While October promises 264 hours of sun, September stands out with its perfect balance, bridging the warmth of summer and the crispness of autumn. It's a time when the light softens, inviting locals and visitors alike to savor the changing season.
In September, the likelihood of sunny weather in Gongju, South Korea, stands at 37%, reflecting a modest chance for clear skies. As we transition from summer, which experiences lower sunshine probabilities—27% in July and 28% in August—September marks a slight recovery, although it lags behind the more promising odds seen in the autumn months ahead, such as 49% in October and 57% in November. This month serves as a bridge between the sultry summer and the crisp fall, hinting at a gradual return to more favorable weather, yet still subject to the variability of early autumn conditions. Overall, while September may not guarantee sunny days, it offers a glimmer of hope for those seeking a break from the rain.
As summer wanes in Gongju, South Korea, September ushers in a subtle transition in daylight, with the hours of sunshine decreasing to 12 hours. This decline marks a shift from the summer peak of 14 hours in June and July, while still retaining a generous amount of daylight compared to the winter months. The gradual fading of daylight that starts in August becomes more pronounced, yet September still offers a pleasant balance—where the warmth of the summer sun lingers, complemented by the beginnings of a crisp autumn atmosphere. As the months progress towards October, daylight continues to decrease, reminding us of nature’s rhythmic cycle and the approaching seasonal change.
As September rolls into Gongju, South Korea, the average wind speed picks up slightly to 2.8 m/s (6 mph), mirroring the breezy conditions often felt in the preceding spring and late summer months. The gentle winds of this transition month are a refreshing change from the stillness experienced during the hot, humid days of July and August, where wind speeds dipped to a mere 2.1 m/s (5 mph). With autumn just around the corner, September invites a harmonious blend of warmth and cool air, making it an ideal time for outdoor activities as the atmosphere becomes invigorating yet serene. This trend of moderate winds sets the stage for the cooler months ahead, hinting at a shift from the languid summer breezes to the brisker gusts of autumn.
Weather in Gongju varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Gongju, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather patterns. In September, temperatures range from a mild minimum of 8°C (47°F) to a warm maximum of 31°C (88°F), with an average of 21°C (71°F). The month also experiences significant rainfall, totaling 158 mm (6.2 in) over 9 days, accompanied by high humidity levels at 77%. In contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -18°C (-1°F) and averaging only -1°C (31°F), peaking at 15°C (58°F). Precipitation is minimal during this month, with just 22 mm (0.9 in) over 3 days and a lower humidity of 71%. For a detailed outlook, you can check Gongju weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures range from a mild 8°C (47°F) at night to a warm average of 21°C (71°F), peaking at a hot 31°C (88°F) during the day, accompanied by relatively high humidity at 77% and substantial rainfall of 158 mm over nine days. In contrast, February is characterized by cold conditions, with nighttime lows plunging to -13°C (10°F) and an average temperature barely reaching 1°C (34°F). Daytime highs in February can reach 21°C (69°F), but with significantly less precipitation at just 31 mm over four days and lower humidity at 65%. For more details, check out Gongju weather in February.
In comparing the weather of September and March, it’s clear that September offers much warmer temperatures, with a minimum of 8°C (47°F) and an average of 21°C (71°F), peaking at a high of 31°C (88°F). In contrast, March experiences cooler temperatures, starting from a low of -5°C (22°F) and averaging only 8°C (46°F), with a maximum of 23°C (74°F). Additionally, September is considerably wetter, receiving 158 mm (6.2 in) of precipitation over 9 days, while March sees just 62 mm (2.4 in) over 6 days. Humidity levels also differ, with September exhibiting higher humidity at 77% compared to March's 65%. For a detailed overview of March weather specifically, you can visit Gongju weather in March.
In comparing the weather of September and April, we see notable differences in temperature and precipitation patterns. September boasts a milder average temperature of 21°C (71°F), with highs reaching up to 31°C (88°F), making it a warmer month overall. In contrast, April experiences cooler temperatures, with an average of 13°C (56°F) and a maximum of 29°C (85°F).
Precipitation also varies significantly; September tends to be wetter, with 158 mm (6.2 in) of rainfall over about 9 days, while in April, the total is considerably lower at 68 mm (2.7 in) over just 6 days. Humidity levels are relatively comparable, with September at 77% and April slightly lower at 75%. For more insights on April weather, you can check Gongju weather in April.
September and May present distinct weather characteristics, with September generally being warmer and wetter. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 31°C (88°F), while May's temperatures are milder, with a minimum of 3°C (38°F) and a maximum of 32°C (90°F). Precipitation levels also differ significantly; September experiences 158 mm (6.2 in) of rain over 9 days, compared to May's 82 mm (3.2 in) over the same number of days. Furthermore, humidity is slightly higher in May at 81%, compared to September's 77%. For more detailed insights, you can visit Gongju weather in May.
September and June present contrasting weather conditions. In September, temperatures typically range from a minimum of 8°C (47°F) to a maximum of 31°C (88°F), with an average of 21°C (71°F). This month experiences more precipitation, totaling 158 mm (6.2 in) over about 9 days, accompanied by a humidity level of 77%. In contrast, June sees warmer temperatures, with a minimum of 12°C (54°F) and a peak of 36°C (96°F), yielding an average of 23°C (74°F). Rainfall during June is relatively lower at 88 mm (3.5 in), occurring over 8 days, and humidity is slightly higher at 85%. For more details about June weather, you can refer to Gongju weather in June.
In comparing the weather of September and July, it is clear that July is significantly warmer, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 38°C (100°F), while September's temperatures are milder, ranging from 8°C (47°F) to 31°C (88°F). Additionally, July experiences higher humidity levels at 91%, compared to September's 77%, contributing to a more oppressive heat during the summer month. Precipitation is also more considerable in July, totaling 235 mm (9.2 in) over 15 days, as opposed to September's 158 mm (6.2 in) across 9 days, indicating that July tends to be wetter as well. For a detailed look at the conditions during July, you can refer to Gongju weather in July.
In comparing the weather between August and September, it is clear that September brings a noticeable drop in temperatures, with averages ranging from a minimum of 8°C (47°F) to a maximum of 31°C (88°F), compared to August's higher averages of 16°C (61°F) to a sweltering 40°C (105°F). August is characterized by higher humidity at 91% and more overall precipitation, experiencing rainfall on 16 days and totaling 228 mm (9.0 in). In contrast, September sees a decrease in both humidity at 77% and precipitation, with rain on only 9 days and a total of 158 mm (6.2 in). For a detailed look at August weather, you can visit Gongju weather in August.
September and October present a notable transition in weather patterns. In September, temperatures range from a mild minimum of 8°C (47°F) to an average high of 31°C (88°F), with a considerable amount of precipitation totaling 158 mm (6.2 in) over 9 days and humidity levels around 77%. In contrast, October experiences cooler temperatures with a minimum of 1°C (34°F) and an average high of 30°C (86°F), while significantly reducing the rainfall to 69 mm (2.7 in) over just 5 days. Humidity remains slightly higher in October at 79%, creating a crisp atmosphere as the month progresses. For those interested in more detailed weather patterns for this time, check out Gongju weather in October.
September and November present a stark contrast in weather characteristics. In September, temperatures range from a mild 21°C (71°F) on average, peaking at 31°C (88°F) during the day, with relatively high humidity at 77% and significant rainfall of 158 mm (6.2 in) across 9 days. In comparison, November sees much cooler temperatures, with an average of 8°C (46°F) and lows dipping down to -4°C (25°F), accompanied by a notable drop in precipitation to just 41 mm (1.6 in) over 5 days. The humidity remains somewhat high at 80%, but the overall feeling is much more crisp and chilly. For more details on weather trends, you can check Gongju weather in November.
In September, the weather is warm and somewhat humid, with average temperatures ranging from a mild 21°C (71°F) to a high of 31°C (88°F). The month experiences significant rainfall, with a total of 158 mm (6.2 in) over about 9 days, contributing to a humidity level of around 77%. In contrast, December brings much colder temperatures, with a sharp drop to an average of 1°C (34°F) and lows plunging to -12°C (10°F). Precipitation is considerably less at 26 mm (1.0 in) spread over only 4 days, and humidity slightly decreases to 74%. For more detailed information, you can check Gongju weather in December.
As summer transitions to autumn, September in Gongju brings a unique blend of warmth and moisture that sets it apart from the other months. While the days still bask in the sun with pleasant temperatures, cooler evenings hint at the fall season ahead. The noticeable high humidity and regular precipitation create a lush landscape, enriching the region's natural beauty. This vibrant weather makes September an ideal time for outdoor enthusiasts to explore the charm of Gongju before the cooler months arrive. For a deeper dive into what to expect throughout the year, check out Gongju Climate.