Last updated: October 30, 2025
September in Gapyeong, South Korea offers a delightful blend of warmth and crispness as summer transitions into autumn. With maximum temperatures reaching 29°C (85°F) and an average temperature around 20°C (68°F), the month provides a pleasant climate for outdoor activities. However, the minimum temperatures can dip to 7°C (44°F), inviting cooler evenings. Rain is a frequent visitor, contributing a total of 143 mm (5.6 in) across 9 days, which, paired with the humidity of 77%, creates an invigorating atmosphere. Whether exploring the stunning natural landscapes or enjoying cultural festivities, visitors can expect a refreshing blend of experiences in this picturesque region.
In September, Gapyeong, South Korea, experiences a notable transition in temperatures as the summer heat gives way to the crispness of fall. The average temperature settles comfortably at 20°C (68°F), while daily highs can reach a pleasant 29°C (85°F), ideal for outdoor activities. The evenings, however, begin to cool off, with minimum temperatures dropping to 7°C (44°F), signaling the approach of autumn. This change not only enhances the scenery with vibrant foliage but also invites visitors to enjoy the temperate climate, making it a perfect time for exploring the region's natural beauty. The gradual cooling trend from summer to fall in Gapyeong offers a delightful balance between warmth and freshness, enriching the experience for locals and tourists alike.
September in Gapyeong, South Korea, marks a significant transition in precipitation patterns, with an average rainfall of 143 mm (5.6 in) over 9 days. Following the heavy downpours of the summer months, September experiences a moderate decrease in both the total precipitation and the number of rainy days compared to August's 275 mm (10.8 in) and 18 days. This shift indicates a gradual tapering off of the monsoon season, suggesting a move towards drier autumn weather. Despite the reduction, September still retains a notable amount of rainfall, reinforcing its role as a month of substantial precipitation within the annual cycle. As the landscape begins to change with cooler temperatures and shorter days, this rainfall helps sustain the lush greenery that characterizes Gapyeong during this time.
In September, Gapyeong, South Korea experiences a noticeable drop in humidity, cooling down to 77% from the sweltering highs of the summer months, where it peaked at 91% in both July and August. This decline marks a transition into the fall season, following the 81% humidity of May and 85% in June. The moisture in the air is still significant, but the shift towards drier conditions foreshadows the upcoming autumn months, which see October creeping up slightly to 79% and November settling at 80%. Overall, September serves as a bridge, moving from summer's heavy mugginess towards the more temperate and crisp feel of autumn.
In September, Gapyeong, South Korea, experiences a very high UV Index of 9, with a burn time of just 15 minutes. This marks a slight decline from the extreme levels seen in July and August but remains a critical time for sun safety. As summer transitions into autumn, the UV exposure remains significant, highlighting the importance of sun protection. This pattern reflects a broader trend in Gapyeong, where UV levels peak during the summer months before tapering off in October. Stay informed and take precautions as you enjoy the beautiful September weather by checking the latest readings at Gapyeong UV Index.
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In September, Gapyeong, South Korea, basks in 251 hours of sunshine, marking a slight dip from the summer peak of June with 307 hours. As the warm days of summer gracefully transition into the crisp embrace of autumn, sunlight remains abundant, perfect for enjoying the great outdoors. This month typically sees more sunshine than the later fall months, such as October, which shares the same total but lacks the lingering warmth of September. The overall trend demonstrates that as the year progresses, sunshine hours gradually decline from the highs of late spring and early summer, inviting residents and visitors alike to savor the last golden rays before the chill of winter sets in.
In Gapyeong, South Korea, the likelihood of sunny weather in September stands at 40%, presenting a notable improvement compared to the cloudy days of the summer months. This slight upswing from August's 28% signifies a transition towards more favorable conditions as autumn approaches. Following the trend, September is the first month since June to offer a better chance for sunshine, hinting at returning warmth and clearer skies. As the year progresses, the sunshine percentage climbs again in October, reflecting a rhythm of changing seasons that residents and visitors alike can anticipate.
In September, Gapyeong, South Korea, enjoys a delightful balance of daylight with approximately 12 hours of sunshine. This marks a gentle decline from the 14 hours experienced in the peak summer months, reflecting the gradual transition into autumn. As the days shorten, the warmth of summer gives way to the crispness of fall, creating a perfect backdrop for outdoor activities and stunning foliage. The trend of decreasing daylight continues into October, aligning with the seasonal shift, while reminding residents and visitors alike to savor the lingering daylight before winter sets in, when the hours dip down to 11 and then 10 by November.
As autumn approaches in Gapyeong, South Korea, September welcomes a gentle shift in the breeze. With an average wind speed of 2.1 m/s (5 mph), the winds provide a refreshing contrast to the summer heat, gradually picking up after the calmer months of July and August. This slight increase signals the arrival of fall, making way for crisper air and vibrant foliage. As the year progresses, wind speeds typically fluctuate, peaking in winter months, but September's moderate breeze perfectly encapsulates the transition, inviting visitors to enjoy the scenic landscapes while feeling the subtle whispers of change in the air.
Weather in Gapyeong varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Gapyeong, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly different weather conditions. In September, temperatures can range from a mild 7°C (44°F) at night to a warm 29°C (85°F) during the day, with an average of 20°C (68°F). This month also sees considerable rainfall, with around 143 mm (5.6 in) over approximately 9 days, and humidity levels peak at 77%. In contrast, January is characterized by much colder temperatures, with minimums plunging to -20°C (-4°F) and an average of -3°C (27°F), peaking at only 12°C (53°F). The precipitation is significantly lower in January, at 23 mm (0.9 in) over just 2 days, accompanied by a humidity level of 71%. To explore more about January's weather, check out Gapyeong weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a mild 7°C (44°F) at night to a warm average of 20°C (68°F), peaking at 29°C (85°F) during the day. The month is characterized by higher humidity at 77% and considerable rainfall, with 143 mm (5.6 in) over approximately 9 days. In contrast, February is much colder, with temperatures plummeting to a minimum of -17°C (2°F) and averaging around -1°C (31°F), while only reaching a maximum of 17°C (63°F). Precipitation is significantly lower in February at 24 mm (1.0 in) over just 4 days, and humidity also drops to 65%. For a detailed look at February weather, check out Gapyeong weather in February.
In September, temperatures in Gapyeong are notably warmer, with average highs reaching 29°C (85°F) and a comfortable average of 20°C (68°F). However, this month also sees significant rainfall, with 143 mm (5.6 in) of precipitation spread over 9 days and a humidity level of 77%. In contrast, March offers a much cooler climate; the minimum temperature can drop to -7°C (20°F), with an average of 6°C (43°F) and highs reaching 20°C (69°F). Precipitation is lighter in March, totaling 55 mm (2.2 in) over just 6 days, and the humidity is somewhat lower at 65%. For more detailed information about March weather, check out Gapyeong weather in March.
In comparing the weather between September and April, it's clear that September tends to be warmer and more humid. September showcases a range of temperatures from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 20°C (68°F) and a relatively high humidity of 77%. In contrast, April experiences cooler temperatures, with lows dropping to -3°C (26°F) and highs reaching up to 27°C (80°F); the average temperature is only 11°C (53°F). Additionally, April has less precipitation, totaling 72 mm (2.8 in) over about 7 days, compared to September's 143 mm (5.6 in) over 9 days. For more detailed insights on April weather, you can refer to Gapyeong weather in April.
When comparing the weather in September and May, we see that September features a wider temperature range with minimums around 7°C (44°F) and maximums reaching up to 29°C (85°F), while May has cooler temperatures with a minimum of 3°C (38°F) and a maximum of 31°C (88°F). In terms of average temperature, September tends to be slightly warmer at 20°C (68°F), compared to May's average of 17°C (63°F). Precipitation is fairly similar, with September receiving 143 mm (5.6 in) over 9 days and May close behind with 122 mm (4.8 in) across 10 days. Despite having slightly lower humidity levels in September at 77%, both months share a similar humid experience, with May slightly higher at 81%. For more specific details about May weather, you can check Gapyeong weather in May.
When comparing the weather in September and June, we see notable differences. September has a more moderate temperature range with a minimum of 7°C (44°F) and a maximum of 29°C (85°F), averaging around 20°C (68°F), whereas June is warmer, with minimums of 11°C (52°F) and maximums soaring to 34°C (93°F), averaging about 21°C (71°F). In terms of precipitation, September experiences more rainfall, totaling 143 mm (5.6 in) over 9 days, compared to June's 94 mm (3.7 in) spread over 10 days. Additionally, humidity levels in June are higher at 85%, while September's humidity sits slightly lower at 77%. For those interested in more detailed June weather information, visit Gapyeong weather in June.
When comparing the weather in September and July, notable differences in temperature and precipitation emerge. September typically sees a wider range of temperatures, with minimums around 7°C (44°F) and maximums reaching 29°C (85°F), leading to a pleasant average of 20°C (68°F). In contrast, July is distinctly warmer, with minimums of 15°C (59°F) and maximums soaring to 35°C (95°F), averaging 25°C (77°F). However, July is also wetter, recording 253 mm (10.0 in) of precipitation over 15 days, compared to September's 143 mm (5.6 in) over 9 days. Additionally, humidity levels are higher in July at 91% compared to 77% in September, making July feel more oppressive. For more specific insights on July weather, you can refer to Gapyeong weather in July.
In comparing the weather conditions of September and August, it's clear that September offers a more moderate climate, with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 29°C (85°F). In contrast, August experiences warmer weather, with minimum temperatures at 14°C (57°F) and highs reaching up to 37°C (99°F). Precipitation also varies significantly between the two months; September sees 143 mm (5.6 in) over 9 days, while August has much more rainfall, totaling 275 mm (10.8 in) over 18 days. Additionally, humidity levels are higher in August at 91%, compared to September's 77%. For further details, you can check Gapyeong weather in August.
September typically boasts warmer weather, with average temperatures around 20°C (68°F) and highs reaching up to 29°C (85°F), alongside considerable rainfall of 143 mm (5.6 in) over 9 days and a humidity level of 77%. In contrast, October brings a notable drop in temperatures, featuring a minimum of -2°C (28°F) and an average of 13°C (56°F), while still managing mild highs up to 27°C (81°F). Rainfall decreases to 61 mm (2.4 in) across just 6 days, though humidity remains similar at 79%. For more specific insights on October weather patterns, you can visit Gapyeong weather in October.
In September, the weather is generally warm, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 29°C (85°F) and an average of 20°C (68°F). The month experiences significant rainfall, with 143 mm (5.6 in) of precipitation occurring over 9 days, contributing to a humidity level of 77%. In contrast, November sees a notable drop in temperatures, with minimums plunging to -7°C (19°F) and an average of just 6°C (43°F), while the maximum still reaches a mild 20°C (68°F). Precipitation decreases to 56 mm (2.2 in) over 5 days, and humidity rises slightly to 80%. For more details, you can check this link: Gapyeong weather in November.
September and December weather in Gapyeong offer a striking contrast. In September, temperatures range from a mild 7°C (44°F) at night to a warm 29°C (85°F) during the day, with an average of 20°C (68°F). However, this month brings considerable rainfall, totaling 143 mm (5.6 in) over 9 days, and a higher humidity level of 77%. In contrast, December is marked by much colder temperatures, with minimums plunging to -19°C (-3°F) and daytime highs peaking at only 11°C (52°F), averaging -1°C (30°F). Precipitation drops significantly to just 22 mm (0.9 in) over 4 days, accompanied by a slightly lower humidity of 74%. For more detailed insights on December weather in this region, you can visit Gapyeong weather in December.
As September unfolds in Gapyeong, the weather transitions into a delightful blend of mild temperatures and moderate rainfall, marking a refreshing change from the hotter summer months. With an average temperature hovering around 20°C, the days can be pleasantly warm, perfect for outdoor activities, while the cooler evenings offer a cozy respite. The increased humidity at 77% often brings about a touch of moisture in the air, contributing to the lush greenery of the surroundings. Additionally, with precipitation occurring on about nine days this month, those vibrant autumn hues begin to emerge, setting a picturesque backdrop for visitors. For more detailed insights into this beautiful region's climate, explore Gapyeong Climate.