September Weather in Yeongdeok, South Korea

Last updated: October 30, 2025

In Yeongdeok, South Korea, September delights with a balmy climate, featuring a maximum temperature of 30°C (86°F) and an average of 21°C (70°F), making it a great time for outdoor activities. Nighttime brings a refreshing dip to a minimum of 12°C (55°F). This month sees 181 mm (7.1 in) of rainfall spread across approximately 10 days, contributing to the region's lush scenery. With an average humidity of 77%, the air is comfortably warm, encapsulating the essence of early autumn in this vibrant coastal town.

September Temperature in Yeongdeok

In September, Yeongdeok experiences a delightful transition into autumn, with temperatures characterized by mildness and comfort. The month's minimum temperature of 12°C (55°F) and an average of 21°C (70°F) hint at a gentle cooling after the summer’s heat, where highs can reach 30°C (86°F). This notable drop compares favorably to the hotter months of July and August, suggesting a perfect opportunity for outdoor activities without the summer swelter. With these pleasant conditions, September marks an ideal time to enjoy the stunning landscapes of Yeongdeok as they begin to don their autumn colors.

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

The chart illustrates September temperature patterns in Yeongdeok, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yeongdeok, September typically has an average temperature of 21°C (70°F), with highs reaching up to 30°C (86°F) and lows dropping to around 12°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec333646546369777970604936
Data source: Temperature data for Yeongdeok generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Yeongdeok

In September, Yeongdeok, South Korea, experiences a significant drop in precipitation compared to the preceding summer months, with 181 mm (7.1 in) of rainfall recorded over 10 days. This marks a continuation of the late summer monsoon season, which peaks in July and August, bringing heavy rains that often exceed 200 mm. As the region transitions into autumn, the rainfall diminishes, signaling a shift in climate patterns. The relatively high precipitation in September maintains a lush landscape, but the decrease also hints at an impending drier season as October approaches, where only 110 mm (4.3 in) is expected. Overall, September's precipitation serves as a bridge between the intense summer rains and the milder, cooler autumn weather.

September Precipitation Trends in Yeongdeok

The chart displays monthly precipitation patterns in Yeongdeok, 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 Yeongdeok, September typically receives around 181 mm (7.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec2430817876952362071811102420
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Yeongdeok

September in Yeongdeok, South Korea, sees a notable drop in humidity, averaging 77%, following the intense peaks of summer where July and August consistently hovered at 91%. This decline signals the beginning of a transition into autumn, as the swampy heat of midsummer gives way to a slightly more comfortable and refreshing atmosphere. Earlier months, such as May and June, also displayed high humidity levels—79% and 82% respectively—indicative of the region's moist climate. Overall, September's humidity reflects a gentle easing from the sweltering summer months, setting the stage for the milder conditions ahead in October and November.

September Average Humidity in Yeongdeok

This chart illustrates the average monthly humidity levels in Yeongdeok, 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 Yeongdeok is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%66%64%74%79%82%91%91%77%78%80%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yeongdeok

As summer fades into September, Yeongdeok experiences a noticeable shift in its UV Index, reaching a significant 10 this month, placing it in the very high exposure category. This decline from the peak extreme levels of July and August—when UV Indexes soared to 12—highlights the transition to a slightly milder yet still potent sun exposure. With an average burn time of just 15 minutes, it’s crucial for residents and visitors to remain cautious about their sun protection. This trend sets the stage for a gradual decrease as the season shifts toward autumn, evidenced by the subsequent drop to 7 in October. For more detailed insights and recommendations, explore the Yeongdeok UV Index.

Maximum UV Index Levels in Yeongdeok for September

The chart shows the monthly maximum UV Index (UVI) for Yeongdeok 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 Yeongdeok typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35791011121210753
Data source: Yeongdeok 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 Yeongdeok

In Yeongdeok, South Korea, September ushers in a refreshing transition, offering 250 hours of sunlight. This marks a notable shift from the vibrant peak of summer, where June dazzles with the most radiant 316 hours. As the summer warmth begins to wane, the sunlight in September is slightly less than the previous months, reflecting a gentle descent towards autumn. The gradual decrease in daylight hours from the summer peak, coupled with a slight rebound in October to 258 hours, suggests a seasonal rhythm that balances brightness with the onset of cooler weather. As the landscape shifts, September’s sunshine invites locals and visitors alike to embrace the beauty of nature preparing for its next chapter.

Monthly Sunshine Duration in Yeongdeok: September Highlighted

The September sunshine duration represents the total number of hours Yeongdeok 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.
JanFebMarAprMayJunJulAugSepOctNovDec197h240h273h289h311h316h292h297h250h258h237h242h
Data source: Yeongdeok September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yeongdeok During September

In Yeongdeok, South Korea, September brings a moderate chance of sunny weather, with a 31% likelihood of sunshine. This figure represents a noticeable increase from the sun-drenched summer months of July and August, which see some of the lowest chances at 22% and 24%, respectively. After the peak summer season, September begins a transition towards a more favorable climate, with prospects for clearer skies improving as the year progresses into autumn. While the chances of encountering sunny days are still relatively modest compared to other months like November (69%) or December (75%), September serves as a delightful bridge, hinting at the sunnier days ahead while still retaining some of summer's warmth.

Percentage of Sunny Days in September in Yeongdeok

The chart illustrates the percentage of sunny days in Yeongdeok 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 Yeongdeok experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%57%40%44%37%28%22%24%31%46%69%75%
Data source: Yeongdeok September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yeongdeok in September

As summer transitions into autumn in Yeongdeok, South Korea, daylight gradually diminishes from the longest days of summer to the shorter hours of winter. In September, residents enjoy around 12 hours of daylight, marking a gentle decrease from the peak summer months, where daylight extended to a full 14 hours in June, July, and August. This slight reduction in daylight reflects the shifting seasons, as days shorten and temperatures begin to fall. The trend of longer days in spring and summer gives way to a more balanced daylight experience in early autumn, preparing the landscape for the upcoming changes of October's 11 hours and November's 10 hours of daylight.

Average Daylight Hours in Yeongdeok for September

The chart illustrates the variation in daylight duration in Yeongdeok throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 58m10h 50m11h 57m13h 7m14h 5m14h 35m14h 20m13h 29m12h 22m11h 14m10h 13m9h 42m
Data source: Yeongdeok daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Yeongdeok

As September rolls into Yeongdeok, South Korea, the wind begins to pick up slightly from the summer's lull, averaging 3.1 m/s (7 mph). This shift marks a refreshing change from the light breezes of July and August, which both saw some of the year's calmest winds. Interestingly, September's winds are reminiscent of the early spring months, transitioning smoothly from the sultry summer atmosphere to the more invigorating autumn air. As the season changes, you'll feel the gentle gusts that signal the approach of cooler days, with wind speeds set to rise more dramatically come November, where they average 3.6 m/s (8 mph). This gradual increase showcases Yeongdeok's shifting climate, wrapping the coastal town in the promises of fall.

Average September Wind Speed in Yeongdeok

The chart displays monthly wind speed patterns in Yeongdeok, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.03.93.23.12.92.21.92.53.1 m/s2.63.64.1
Data source: Yeongdeok September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Yeongdeok Compares to Other Months

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

September and January present strikingly different weather patterns. In September, temperatures range from a mild 12°C (55°F) at night to a warm 30°C (86°F) during the day, creating a pleasant atmosphere despite the higher humidity at 77%. Rainfall is significant, with 181 mm (7.1 in) occurring over about 10 days, contributing to a lush environment.

In contrast, January sees frigid conditions, with temperatures plummeting to a minimum of -14°C (7°F) and averaging around 0°C (33°F). The maximum temperature climbs to only 13°C (56°F), starkly contrasting with September's warmth. Additionally, January is relatively dry, with only 24 mm (1.0 in) of precipitation over just three days and lower humidity at 71%. For more detailed information on January weather, visit Yeongdeok weather in January.

September and February present strikingly different weather patterns. In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 30°C (86°F), with an average of 21°C (70°F). This month experiences relatively high humidity at 77% and substantial precipitation, totaling 181 mm (7.1 in) over about 10 days. In contrast, February is much colder, with temperatures dropping to a minimum of -13°C (8°F) and an average of just 2°C (36°F), peaking at 20°C (69°F). February sees significantly less rainfall, accumulating only 30 mm (1.2 in) across 3 days, and lower humidity at 66%. For a closer look at February weather in Yeongdeok, visit Yeongdeok weather in February.

When comparing the weather in September and March, the differences are striking. September typically experiences a mild climate with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 30°C (86°F) and an average of 21°C (70°F). This month also sees relatively high humidity at 77% and significant rainfall, accumulating 181 mm (7.1 in) over about 10 days. In contrast, March ushers in cooler weather with minimum temperatures dropping to -3°C (26°F) and an average of just 8°C (46°F), peaking at 22°C (71°F). Precipitation is considerably lower in March, with 81 mm (3.2 in) expected over approximately 7 days and a reduced humidity level of 64%. For more details on March weather specifics, visit Yeongdeok weather in March.

When comparing the weather in September and April, notable differences emerge in temperature and precipitation patterns. September typically features a warmer climate, with average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 30°C (86°F), while April experiences cooler conditions, with averages between 1°C (33°F) and 27°C (82°F). Additionally, September is considerably wetter, receiving 181 mm (7.1 in) of rain over approximately 10 days, compared to April's milder 78 mm (3.1 in) across 7 days. Despite the slight difference in humidity, which sits at 77% for September and 74% for April, the overall feel of September tends to be more humid and tropical. For more specific details about April weather, you can check Yeongdeok weather in April.

When comparing the weather in September and May, we notice several key differences. September typically experiences a higher average temperature of 21°C (70°F) compared to May's average of 17°C (63°F), with September also having warmer minimum temperatures. However, May can reach a maximum of 31°C (87°F), slightly surpassing September's maximum of 30°C (86°F). Precipitation is significantly lower in May, with only 76 mm (3.0 in) over 7 days, while September sees much more rainfall at 181 mm (7.1 in) across 10 days. Both months have relatively high humidity, with September at 77% and May at 79%. For more detailed weather insights, you can check Yeongdeok weather in May.

In comparing the weather of September and June, we find some interesting similarities and differences. Both months have a minimum temperature around 12°C (54-55°F) and share an average temperature of 21°C (70°F). However, June tends to be slightly warmer, with a maximum temperature reaching 32°C (89°F) compared to September's maximum of 30°C (86°F). Additionally, September experiences significantly more rainfall, with 181 mm (7.1 in) over approximately 10 days, while June sees only 95 mm (3.7 in) over about 8 days. Furthermore, the humidity levels are similar, with September at 77% and June at a slightly higher 82%. For more detailed climatic information, you can check Yeongdeok weather in June.

When comparing the weather of September and July, a few notable differences emerge. In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 30°C (86°F), with an average of 21°C (70°F). This month experiences significant precipitation, totaling 181 mm (7.1 in) over about 10 days and a humidity level of 77%. In contrast, July is generally warmer, with temperatures ranging from 17°C (62°F) to 34°C (94°F) and an average of 25°C (77°F). However, it also sees more rain, with 236 mm (9.3 in) of precipitation spread over 16 days and a higher humidity of 91%. For more detailed insights into July weather conditions, you can refer to Yeongdeok weather in July.

When comparing the weather in September to August, it's clear that September experiences cooler temperatures, with a minimum of 12°C (55°F) and a maximum of 30°C (86°F), compared to August’s warmer range of 19°C (67°F) to 35°C (96°F). The average temperature in September is also lower at 21°C (70°F) versus August’s 26°C (79°F). Both months see substantial rainfall, with September receiving 181 mm (7.1 in) over 10 days and August having slightly higher precipitation at 207 mm (8.2 in) over 15 days. Humidity remains high in both months, but August is notably more humid at 91% compared to September’s 77%. For more details, you can check Yeongdeok weather in August.

In comparing the weather between September and October, we see a noticeable shift in temperatures and precipitation patterns. September boasts warmer averages with minimums around 12°C (55°F) and maximums reaching 30°C (86°F), while October cools down significantly, with minimums dropping to 5°C (40°F) and an average of 16°C (60°F). Additionally, September experiences more precipitation, at 181 mm (7.1 in) over 10 days, compared to October's 110 mm (4.3 in) over just 7 days. Despite these changes, humidity remains fairly consistent, hovering around 77% in September and slightly increasing to 78% in October. For a detailed look at the weather specifics, you can refer to Yeongdeok weather in October.

September and November present a striking contrast in weather patterns. In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 30°C (86°F), with an average of 21°C (70°F). The month is marked by significant rainfall, totaling 181 mm (7.1 in) over about 10 days, and a humidity level of 77%, leaving the air feeling warm and often humid.

In comparison, November sees a notable drop in temperatures, with a minimum of -3°C (27°F) and a maximum of 22°C (71°F), leading to a much cooler average of 9°C (49°F). Precipitation is significantly reduced to 24 mm (0.9 in) across just 3 days, while humidity rises slightly to 80%. For more detailed insights, check out Yeongdeok weather in November.

September and December present starkly contrasting weather conditions. In September, temperatures range from a mild 12°C (55°F) at night to a warm 30°C (86°F) during the day, with an average of 21°C (70°F). The month experiences significant rainfall, totaling 181 mm (7.1 in) over approximately 10 days, contributing to a humid environment with a humidity level of 77%. In contrast, December brings a colder climate, with temperatures dropping to a minimum of -11°C (13°F) and a maximum of 15°C (59°F), averaging just 2°C (36°F). Precipitation is much lighter in December, at only 20 mm (0.8 in) over 3 days, and the humidity remains relatively stable at 76%. For more details on December weather, visit Yeongdeok weather in December.

Compare Yeongdeok's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Yeongdeok

As September unfolds in Yeongdeok, the weather begins to transition, offering a delightful blend of warmth and refreshing breezes. With temperatures averaging comfortably around 21°C (70°F), this month stands out as a perfect balance between the scorching summer heat and the cooler autumn days to come. Although precipitation is more frequent in September, adding a touch of humidity to the air, the landscape thrives under these conditions, creating a vibrant backdrop. This makes September an idyllic time for exploration, as lush greenery and milder weather welcome visitors. For a detailed overview of what to expect throughout the year, check out the full information on Yeongdeok Climate.