September Weather in Cheongpyeong, South Korea

Last updated: October 30, 2025

September in Cheongpyeong, South Korea showcases a delightful transition into autumn, with temperatures ranging from a comfortable 7°C (44°F) to a maximum of 29°C (85°F) and an average of 20°C (68°F). This month experiences an average humidity of 77%, creating a mellow atmosphere perfect for outdoor activities. However, be prepared for some wet days, as 143 mm (5.6 in) of precipitation typically falls over 9 days, adding a refreshing touch to the landscape. Whether exploring the natural beauty or enjoying local festivities, September offers a unique charm in Cheongpyeong.

September Temperature in Cheongpyeong

In September, Cheongpyeong, South Korea experiences a delightful transition as summer gradually fades, with temperatures showcasing a comfortable range. The month starts with cooler nights, dipping to a minimum of 7°C (44°F), while daytime highs can reach a pleasant 29°C (85°F). This leads to an average temperature of 20°C (68°F), making it an ideal time for outdoor activities amidst the vibrant autumn foliage. The contrast from the sweltering heat of August, where temperatures peaked at a stifling 37°C (99°F), highlights the refreshing shift toward milder conditions. As September unfolds, it marks the beginning of a cooling trend that continues into the coming months, inviting both locals and visitors to enjoy the crisp air and stunning landscapes.

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

The chart illustrates September temperature patterns in Cheongpyeong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cheongpyeong, September typically has an average temperature of 20°C (68°F), with highs reaching up to 29°C (85°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec273043536271777768564330
Data source: Temperature data for Cheongpyeong generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Cheongpyeong

In September, Cheongpyeong experiences a significant drop in precipitation compared to the preceding months of July and August, but still maintains a noteworthy total of 143 mm (5.6 in) over 9 days of rainfall. This decline marks a transition from the intense summer rains, where August recorded the year's peak at 275 mm (10.8 in). The gradual decrease in precipitation through the late summer months signals a shift towards the drier conditions of fall, as the region prepares for the cooler weather ahead. Notably, September's rainfall serves as a reminder of the lingering summer influence, providing ample hydration for the local landscapes before the drier months set in.

September Precipitation Trends in Cheongpyeong

The chart displays monthly precipitation patterns in Cheongpyeong, 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 Cheongpyeong, September typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec2324557212294253275143615622
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cheongpyeong

September in Cheongpyeong, South Korea, sees a notable shift in humidity, averaging 77%. This marks a decrease from the oppressive levels of 91% experienced in both July and August, as the peak summer humidity begins to wane. As summer transitions into autumn, the overall humidity remains relatively high compared to the winter months, where figures drop to around 71% in January. Interestingly, humidity levels tend to be elevated during the spring and early summer months, with May and June peaking at 81% and 85% respectively. However, September signals a gradual retreat from the summer's peak, indicating the onset of more comfortable, crisp autumn days ahead.

September Average Humidity in Cheongpyeong

This chart illustrates the average monthly humidity levels in Cheongpyeong, 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 Cheongpyeong is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%65%65%75%81%85%91%91%77%79%80%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cheongpyeong

As September unfolds in Cheongpyeong, South Korea, the UV Index remains notably high at 9, categorizing exposure as very high with a burn time of just 15 minutes. This trend follows a summer marked by extreme UV levels, peaking at 11 in July and August, where sun protection becomes crucial. While September signals a slight decrease from the blistering summer months, the UV Index is still significant, reflecting the lingering intensity of early autumn sun. As daylight hours shorten, this month offers a unique opportunity to enjoy the outdoors while remaining vigilant against UV exposure. For detailed insights on UV levels throughout the year, check out the Cheongpyeong UV Index.

Maximum UV Index Levels in Cheongpyeong for September

The chart shows the monthly maximum UV Index (UVI) for Cheongpyeong 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 Cheongpyeong typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346991011119743
Data source: Cheongpyeong 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 Cheongpyeong

Cheongpyeong, South Korea, basks in an impressive shift of sunshine hours throughout the year, with September marking a gentle descent from the peak summer brightness. After enjoying the sun for 307 hours in June and a slightly lower 275 hours in July, September offers a pleasant 251 hours of golden rays, maintaining a warm glow just as autumn begins to set in. This trend continues into October, where the sunshine hours remain steady, reflecting a subtle but noticeable transition from the vibrant summer days to the serene, cooler months ahead. The decline in sunshine is more pronounced from the summer's peak, highlighting that September still offers a rich tapestry of light before winter’s embrace begins to take hold, providing a perfect opportunity for outdoor enthusiasts to relish the changing seasons.

Monthly Sunshine Duration in Cheongpyeong: September Highlighted

The September sunshine duration represents the total number of hours Cheongpyeong 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.
JanFebMarAprMayJunJulAugSepOctNovDec197h237h273h276h299h307h275h261h251h251h227h233h
Data source: Cheongpyeong September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cheongpyeong During September

September in Cheongpyeong, South Korea, offers a refreshing shift in weather patterns as the chance of sunny days rises to 40%, providing a welcome reprieve from the summer months. Following a steady decline in sunshine from May to August, September marks a notable increase, suggesting a transition towards a more pleasant autumn. This month’s sunny prospects are higher than those of the midsummer slump but still lower than the early winter months that follow, where percentages climb back up to the 58% range in November. Overall, September represents a sweet spot in the yearly weather cycle, ideal for those seeking to enjoy outdoor activities amid the unfolding colors of autumn.

Percentage of Sunny Days in September in Cheongpyeong

The chart illustrates the percentage of sunny days in Cheongpyeong 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 Cheongpyeong experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec60%55%44%45%36%33%31%28%40%42%58%64%
Data source: Cheongpyeong September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cheongpyeong in September

In Cheongpyeong, South Korea, the rhythm of daylight undergoes a captivating transformation throughout the year. As winter bids farewell, daylight begins to stretch, peaking at 14 hours during the vibrant months of May through July. However, by September, this exuberance begins to wane, with daylight reducing to 12 hours—a gentle reminder of the impending autumn. The month’s fading light signifies a transition, as daylight hours retreat, ultimately leading back to the shorter days of winter, where January and December offer just 9 hours. Observing this cyclical pattern highlights both the beauty of seasonal change and the gradual surrender of summer's warmth to the crispness of fall.

Average Daylight Hours in Cheongpyeong for September

The chart illustrates the variation in daylight duration in Cheongpyeong throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 51m10h 46m11h 57m13h 10m14h 12m14h 43m14h 27m13h 33m12h 23m11h 11m10h 7m9h 34m
Data source: Cheongpyeong daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Cheongpyeong

As September unfolds in Cheongpyeong, South Korea, the wind begins to pick up slightly, averaging 2.1 m/s (5 mph)—a subtle increase from the stillness of the summer months. This gentle breeze, a welcome transition from the warm, stagnant air of July and August, signals the onset of autumn. While the wind speed remains modest compared to other months, it brings a refreshing quality to the crisp September days. Following this trend, the wind speeds tend to rise again as the year progresses, hinting at a lively shift as nature prepares for the cooler months ahead. This seasonal dance between calm and breeze creates an enchanting atmosphere, perfect for enjoying the stunning fall foliage that Cheongpyeong is known for.

Average September Wind Speed in Cheongpyeong

The chart displays monthly wind speed patterns in Cheongpyeong, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.82.32.32.31.81.51.92.1 m/s1.92.32.5
Data source: Cheongpyeong September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Cheongpyeong Compares to Other Months

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

September presents a mild and pleasant climate, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), averaging around 20°C (68°F). This month experiences significant rainfall, with 143 mm (5.6 in) over approximately 9 days, leading to a higher humidity level of 77%. In stark contrast, January brings frigid temperatures, with a minimum of -20°C (-4°F) and a maximum of only 12°C (53°F), averaging -3°C (27°F). The month is much drier, with a mere 23 mm (0.9 in) of precipitation over just 2 days and lower humidity at 71%. For a deeper look into January weather, visit Cheongpyeong weather in January.

September and February present strikingly different weather patterns. September boasts a mild temperature range, with averages around 20°C (68°F) and highs reaching 29°C (85°F), accompanied by a significant amount of rainfall totaling 143 mm (5.6 in) over 9 days, and humidity levels at 77%. In contrast, February experiences much colder conditions, with temperatures plunging to a minimum of -17°C (2°F) and an average of -1°C (31°F). Precipitation in February is considerably lower at 24 mm (1.0 in) across just 4 days, with humidity at 65%. For a closer look at February weather specifics, you can visit Cheongpyeong weather in February.

September and March present contrasting weather conditions. In September, temperatures range from a mild 7°C (44°F) to a warm 29°C (85°F), averaging around 20°C (68°F). The month experiences significant rainfall, with a total of 143 mm (5.6 in) spread over 9 days and a high humidity level of 77%. In contrast, March is much cooler, with temperatures dipping to a minimum of -7°C (20°F) and peaking at 20°C (69°F), averaging only 6°C (43°F). Precipitation is noticeably lower at 55 mm (2.2 in) over just 6 days, and the humidity is also reduced to 65%. For a more detailed look at March conditions, visit Cheongpyeong weather in March.

In comparing the weather of September and April, September boasts warmer temperatures with an average of 20°C (68°F) and maximums reaching up to 29°C (85°F), while April's temperatures are cooler, averaging 11°C (53°F), with highs around 27°C (80°F). September experiences higher precipitation levels at 143 mm (5.6 in) over 9 days, compared to April's more moderate 72 mm (2.8 in) over just 7 days. Additionally, humidity levels are slightly higher in September at 77%, compared to April’s 75%. For a closer look at the weather in April, you can check out Cheongpyeong weather in April.

When comparing the weather in September and May, several key differences emerge. September generally features a milder temperature range, with minimums around 7°C (44°F) and averages reaching 20°C (68°F), whereas May sees slightly cooler minimums at 3°C (38°F) and an average of 17°C (63°F). Maximum temperatures in both months are comparable, with September peaking at 29°C (85°F) and May slightly higher at 31°C (88°F). Precipitation levels in September are slightly more substantial at 143 mm (5.6 in) over 9 days compared to May’s 122 mm (4.8 in) over 10 days, leading to a slightly lower humidity in September at 77% versus 81% in May. For more detailed insights, you can check Cheongpyeong weather in May.

When comparing the weather in September and June, several notable differences emerge. September typically features a temperature range from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 20°C (68°F). In contrast, June has warmer temperatures, with a minimum of 11°C (52°F), an average of 21°C (71°F), and a maximum reaching 34°C (93°F). Additionally, September sees more precipitation at 143 mm (5.6 in) over 9 days, while June records 94 mm (3.7 in) over a slightly longer duration of 10 days. Humidity levels are slightly higher in June at 85%, compared to 77% in September. For more detailed information on weather patterns, you can check Cheongpyeong weather in June.

In comparing the weather of September and July, it's clear that July is considerably warmer, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F). In contrast, September sees a cooler climate with temperatures varying from a minimum of 7°C (44°F) to a maximum of 29°C (85°F). Moreover, July experiences more precipitation, totaling 253 mm (10.0 in) over 15 days, compared to September's 143 mm (5.6 in) across just 9 days. This difference, combined with higher humidity levels in July at 91%, makes it a much more humid month compared to September’s 77%. For more details, visit Cheongpyeong weather in July.

The weather in September is notably cooler and less humid compared to August. While September experiences average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), August boasts a much warmer range, with minimums of 14°C (57°F) and maximums reaching up to 37°C (99°F). Precipitation is also significantly higher in August, with 275 mm (10.8 in) of rain over 18 days, compared to September’s 143 mm (5.6 in) spread over just 9 days. The humidity in September stands at 77%, while August has a high humidity level of 91%, contributing to the mugginess often felt during that month. For more detailed insights, visit Cheongpyeong weather in August.

September and October exhibit a significant shift in weather patterns. In September, temperatures range from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 20°C (68°F). The month is characterized by higher precipitation, totaling 143 mm (5.6 in) over 9 days, and humidity levels around 77%. In contrast, October experiences cooler temperatures, with a minimum of -2°C (28°F), an average of 13°C (56°F), and a maximum of 27°C (81°F). Precipitation decreases to 61 mm (2.4 in) over just 6 days, while humidity remains similar at 79%. For a more detailed look at the weather specifics, you can visit Cheongpyeong weather in October.

September and November present strikingly different weather patterns. 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). The month sees considerable precipitation at 143 mm (5.6 in) over nine days, contributing to a high humidity level of 77%. In contrast, November experiences much cooler conditions, with temperatures dipping to a minimum of -7°C (19°F) and an average of only 6°C (43°F), while the maximum reaches a pleasant 20°C (68°F). The precipitation decreases significantly to 56 mm (2.2 in) over five days, along with a slight increase in humidity at 80%. For more details on November weather, you can check Cheongpyeong weather in November.

September and December present stark contrasts in weather. 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). The month experiences significant rainfall, totaling 143 mm (5.6 in) over 9 days, and a humidity level of 77% adds to the warm, often humid atmosphere. In contrast, December brings much colder conditions, with nighttime lows plummeting to -19°C (-3°F) and daytime highs peaking at 11°C (52°F), averaging around -1°C (30°F). Additionally, December is much drier, with only 22 mm (0.9 in) of precipitation spread over 4 days and a slightly lower humidity of 74%. For more specific details, you can check this link: Cheongpyeong weather in December.

Compare Cheongpyeong's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Cheongpyeong

As summer transitions to autumn, September in Cheongpyeong brings a refreshing change in weather, marked by a delightful mix of warm days and cooler nights. Unlike the sweltering heat of July and August, temperatures become more moderate, averaging around 20°C (68°F) while still reaching a pleasant high of 29°C (85°F). This month is also relatively wetter, with 143 mm (5.6 in) of precipitation over roughly 9 days, contrasting sharply with the drier summer months. The increased humidity at 77% further enhances the vibrant landscape, making it an ideal time to explore the natural beauty of the region. For more insights into how the weather evolves through the year, visit Cheongpyeong Climate.