September Weather in Paju, South Korea

Last updated: October 30, 2025

In September, Paju, South Korea, experiences a delightful transition into autumn with daily average temperatures lingering around 21°C (71°F), peaking at a maximum of 30°C (86°F) and dipping to a comfortable 9°C (48°F) at night. This month sees about 135 mm (5.3 in) of rain across 9 days, contributing to the region's lush greenery. With a humidity level of 77%, the air feels pleasantly crisp, making it an ideal time for outdoor activities amidst the changing leaves and cooler breezes. Paju's September weather serves as a perfect backdrop for exploring its vibrant landscapes and rich culture.

September Temperature in Paju

In September, Paju, South Korea, begins to transition away from the sweltering summer heat, offering a refreshing shift in temperatures. The month sees minimum temperatures settling at 9°C (48°F), providing a crisp start to the fall season. Daytime averages reach a comfortable 21°C (71°F), perfect for outdoor activities, while the maximums can still rise to a pleasant 30°C (86°F), allowing for lingering warmth as summer gradually fades. This blend of mild conditions marks September as a delightful time for both locals and visitors to explore the beautiful landscapes and vibrant culture Paju has to offer.

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

The chart illustrates September temperature patterns in Paju, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Paju, September typically has an average temperature of 21°C (71°F), with highs reaching up to 30°C (86°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec273144546472798070584430
Data source: Temperature data for Paju 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 Paju

In September, Paju, South Korea, experiences a notable shift in precipitation patterns, contributing to its character as a vibrant late summer locale. With an average of 135 mm (5.3 in) of rainfall over 9 days, September marks a significant decrease from the deluge of August, where 262 mm (10.3 in) fell across 16 days. This reduction in both precipitation intensity and frequency signals the transition into autumn, as the accumulation during September is considerably less than the peak rainy months of July and August. Yet, it still remains higher than the drier months preceding it, illustrating a complex interplay of seasonal shifts. As the region prepares for cooler temperatures, September's rainfall serves to nourish the landscape, setting the stage for the stunning fall foliage to come.

September Precipitation Trends in Paju

The chart displays monthly precipitation patterns in Paju, 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 Paju, September typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec1921435211279217262135594720
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Paju

In September, Paju, South Korea experiences a noticeable shift in humidity, settling at 77%. This marks a drop from the peak levels seen in the summer months of July and August, which soar to an impressive 91%. As the seasons transition, humidity begins to ease, following a trend that sees levels rise sharply from the typically drier winter months, with January starting at 71%. The early autumn air feels more comfortable than the oppressive summer heat, yet it retains a significant amount of moisture. This gradual decrease continues into October, where humidity hovers around 79%, suggesting a slow approach towards the drier winter months ahead.

September Average Humidity in Paju

This chart illustrates the average monthly humidity levels in Paju, 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 Paju 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 Paju

As September unfolds in Paju, South Korea, the UV Index reflects a shift toward very high levels, peaking at 9, with a burn time of just 15 minutes. Following the extreme sun exposure experienced in July and August, when the index reached 11, September signifies a slight decrease but still demands caution. The UV Index trends reveal that while the intensity diminishes from summer highs, the risk remains notable, especially as the region transitions toward autumn. This makes it crucial for residents and visitors alike to stay vigilant and protect their skin. For more information on daily UV levels, visit Paju UV Index.

Maximum UV Index Levels in Paju for September

The chart shows the monthly maximum UV Index (UVI) for Paju 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 Paju typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891011119643
Data source: Paju 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 Paju

As September graces Paju, South Korea, the city basks in a generous 262 hours of sunshine, a delightful transition from the summer months. The sunny days peak in June with 317 hours, showcasing a vibrant summer, while the subsequent months of July and August witness a slight decline to 294 and 289 hours respectively. This gradual ebb indicates the onset of autumn, yet September still enjoys robust sunshine, making it an ideal time for outdoor activities. The trend continues into October with 263 hours, suggesting that autumn is often bathed in a warm glow, further enhancing the picturesque landscapes of Paju. Thus, September stands out as a bridge between the exhilarating brightness of summer and the softer embrace of fall, inviting residents and visitors alike to savor the unique charm of this season.

Monthly Sunshine Duration in Paju: September Highlighted

The September sunshine duration represents the total number of hours Paju 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.
JanFebMarAprMayJunJulAugSepOctNovDec199h242h282h287h311h317h294h289h262h263h231h235h
Data source: Paju September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Paju During September

In Paju, South Korea, the likelihood of sunny weather in September stands at a moderate 42%, reflecting a slight uptick from the summer months of July and August, which both see only a 32% chance of sunshine. This increase suggests that as the summer heat wanes, the region experiences a gradual shift towards clearer skies. However, September does not quite reach the sunnier levels observed in early autumn months like October (43%) and November (61%). Overall, while September offers a welcome respite from the summer's clouds, it still holds a mix of variability, hinting at the seasonal transition ahead.

Percentage of Sunny Days in September in Paju

The chart illustrates the percentage of sunny days in Paju 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 Paju experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec57%56%43%45%38%35%32%32%42%43%61%64%
Data source: Paju September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Paju in September

As summer transitions into autumn in Paju, South Korea, September marks a gentle decline in daylight duration, with the sun gracing the skies for approximately 12 hours. This shift follows the peak brightness of summer months, where daylight lasts a robust 14 hours, and hints at the cooler, shorter days that October will bring, with its 11 hours of light. The gradual tapering of daylight serves as a reminder of the seasonal cycle, as September embodies a harmonious blend of lingering warmth and the subtle approach of autumn's chill, making it a captivating time to appreciate the changing landscape and the vibrant hues of nature.

Average Daylight Hours in Paju for September

The chart illustrates the variation in daylight duration in Paju 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 11m14h 42m14h 27m13h 33m12h 23m11h 11m10h 8m9h 35m
Data source: Paju daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Paju

As September arrives in Paju, South Korea, the air begins to shift with an average wind speed of 2.4 m/s (5 mph), making it a refreshing transition from the warmer summer months. While the winds have ebbed slightly since the peak summer speeds of 2.2 m/s in August, they remain consistent, showing a trend of mildness as autumn approaches. This gentle breeze not only adds a crispness to the air but also hints at the impending vibrant autumn foliage. Interestingly, after a gradual decline from 2.1 m/s in June and a low of 1.9 m/s in July, the winds pick up again slightly in September, capturing the essence of seasonal change. This subtle oscillation in wind patterns highlights the tranquil yet dynamic nature of Paju’s climate as it transitions into fall.

Average September Wind Speed in Paju

The chart displays monthly wind speed patterns in Paju, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.12.52.72.72.11.92.22.4 m/s2.32.42.7
Data source: Paju September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Paju Compares to Other Months

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

In September, the weather is characterized by warm temperatures, with a minimum of 9°C (48°F), an average of 21°C (71°F), and a maximum reaching 30°C (86°F). This month also experiences significant precipitation, totaling 135 mm (5.3 in) over about 9 days, along with relatively high humidity at 77%. In stark contrast, January brings much colder conditions, with temperatures dipping to a minimum of -18°C (0°F) and an average temperature of -3°C (27°F), peaking at only 12°C (55°F). Rainfall is minimal in January, accumulating just 19 mm (0.7 in) over 2 days, and humidity is slightly lower at 71%. For a closer look at January weather, check out Paju weather in January.

September and February showcase markedly different weather patterns. In September, temperatures range from a mild 9°C (48°F) at night to a warm average of 21°C (71°F) by day, peaking at 30°C (86°F). This month also experiences significant rainfall, with about 135 mm (5.3 in) of precipitation over 9 days, contributing to a high humidity level of 77%. In contrast, February presents a stark cooler climate, with temperatures plummeting to a minimum of -15°C (5°F) and averaging around 0°C (31°F), while peaking at a comfortable 17°C (62°F). Precipitation is minimal, with only 21 mm (0.8 in) expected over about 3 days, and humidity is lower at 65%. For more details, check out Paju weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a mild 9°C (48°F) to a warm 30°C (86°F), with an average of 21°C (71°F). This month experiences considerable rainfall, totaling 135 mm (5.3 in) over approximately 9 days, accompanied by relatively high humidity at 77%. In contrast, March is significantly cooler, with temperatures ranging from a low of -8°C (19°F) to a high of 21°C (69°F) and an average of only 6°C (44°F). Precipitation is much lighter in March, with 43 mm (1.7 in) falling over just 5 days, and the humidity is lower at 65%. For a detailed look at this month’s weather, check out Paju weather in March.

When comparing the weather in September and April, notable differences in temperature and precipitation emerge. September experiences a milder temperature range, with minimums around 9°C (48°F) and maximums peaking at 30°C (86°F), resulting in a pleasant average of 21°C (71°F). However, this month also sees relatively high precipitation levels of 135 mm (5.3 in) over 9 days, accompanied by humidity at 77%.

In contrast, April is characterized by cooler temperatures, with a minimum of -2°C (29°F) and a maximum reaching 28°C (82°F). The average temperature for April sits at 12°C (54°F), making it a brisk month compared to September. Precipitation in April is much lower, totaling 52 mm (2.1 in) over about 7 days, and the humidity level is slightly lower at 75%. For more detailed insights about April weather in the region, you can check Paju weather in April.

In comparing the weather of September and May, we see some interesting contrasts. September has a broader temperature range, with minimums around 9°C (48°F) and maximums peaking at 30°C (86°F), leading to an average temperature of 21°C (71°F). In contrast, May experiences slightly cooler temperatures, with lows of 5°C (41°F) and highs reaching 31°C (88°F), averaging 18°C (64°F). Both months have similar precipitation levels, with September receiving 135 mm (5.3 in) and May slightly less at 112 mm (4.4 in), and both months experiencing rainfall on about 9 days. However, humidity is marginally higher in May at 81% compared to September's 77%. For a detailed look at May weather, you can visit Paju weather in May.

In September, the weather transitions towards cooler temperatures, with lows averaging around 9°C (48°F) and highs reaching up to 30°C (86°F). The month is also characterized by increased precipitation, averaging 135 mm (5.3 inches) over about 9 days, and a humidity level of 77%. In contrast, June presents warmer conditions, with minimum temperatures around 12°C (55°F) and maximums peaking at 35°C (96°F). June typically experiences less rainfall, averaging 79 mm (3.1 inches) over 8 days, alongside higher humidity at 85%. For more detailed information, you can check out Paju weather in June.

September's weather is marked by cooler temperatures, with a minimum of 9°C (48°F) and an average of 21°C (71°F), peaking at 30°C (86°F). In contrast, July experiences much warmer conditions, with minimum temperatures around 18°C (64°F) and averages peaking at 26°C (79°F), reaching highs of 36°C (97°F). While September sees 135 mm (5.3 in) of precipitation over 9 days, July is significantly wetter, with 217 mm (8.6 in) over 14 days of rainfall. Additionally, July maintains a higher humidity level at 91%, compared to September's 77%. For more information on July's weather, you can visit Paju weather in July.

September weather features a notable decrease in temperature compared to August, with minimums dropping from 15°C (59°F) in August to 9°C (48°F) in September. The average temperature also sees a dip from 26°C (80°F) to 21°C (71°F), while maximums are lower at 30°C (86°F) compared to August’s sweltering highs of 38°C (100°F). Additionally, September experiences significantly less precipitation, with 135 mm (5.3 in) over 9 rainy days, compared to August's 262 mm (10.3 in) spread across 16 days. Humidity is also reduced in September, averaging 77% versus August's higher level of 91%. For more insights into the weather trends, check out Paju weather in August.

In September, temperatures in Paju range from a minimum of 9°C (48°F) to a warm maximum of 30°C (86°F), with an average of 21°C (71°F). The month experiences significant rainfall, totaling 135 mm (5.3 in) over 9 days, contributing to a humid atmosphere with 77% humidity.

In contrast, October sees a notable drop in temperatures, with a minimum of -1°C (30°F) and an average of 14°C (58°F), while the maximum reaches 28°C (83°F). Precipitation decreases to 59 mm (2.3 in) over just 6 days, and humidity remains slightly higher at 79%. For a detailed look at the weather in Paju this October, check out Paju weather in October.

September and November present markedly different weather conditions. In September, temperatures range from a mild 21°C (71°F) on average, peaking at a warm 30°C (86°F), while precipitation is relatively high at 135 mm (5.3 in) over about 9 days, contributing to a humidity of 77%. In contrast, November sees a significant drop in temperatures, with an average of only 7°C (44°F) and lows plunging to -8°C (18°F). The total precipitation decreases to 47 mm (1.8 in) over just 5 days, and humidity slightly rises to 80%. The transition from September's warmth to November’s chill marks a significant shift in the seasonal climate. For more specific details, you can check Paju weather in November.

September and December present strikingly contrasting weather conditions. In September, temperatures range from a mild 9°C (48°F) at night to a warm 30°C (86°F) during the day, with an average temperature of 21°C (71°F). The month experiences significant rainfall, accumulating 135 mm (5.3 in) over about 9 days, alongside a high humidity level of 77%. In contrast, December brings winter's chill, with temperatures plunging to a minimum of -16°C (4°F) and peaking at a modest 12°C (54°F), averaging around -1°C (31°F). Precipitation decreases markedly to just 20 mm (0.8 in) over 4 days, with humidity slightly lower at 74%. For more detailed insights into December weather, check out Paju weather in December.

Compare Paju's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Paju

As September unfolds in Paju, it marks a transition from the sweltering summer heat to a more temperate climate. The lingering warmth is felt with average temperatures around 21°C (71°F), yet the nights start to bring a refreshing coolness, dipping to around 9°C (48°F). With about 135 mm (5.3 in) of rainfall over 9 days, the month welcomes a notable increase in precipitation compared to the drier summer months, contributing to a stunning tapestry of vibrant autumn colors. Coupled with relatively high humidity at 77%, September in Paju offers a unique blend of warmth and moisture that sets the stage for the changing seasons. For a deeper dive into year-round weather patterns, visit Paju Climate.