September Weather in Kimhae, South Korea

Last updated: October 30, 2025

In September, Kimhae, South Korea, experiences a delightful blend of warmth and moisture, making it a captivating time of the year. With maximum temperatures reaching 31°C (88°F) and an average of 23°C (73°F), the weather is pleasantly warm, inviting outdoor activities. However, the month is also characterized by significant rainfall, accumulating 233 mm (9.2 in) over approximately 12 days, which contributes to a lush landscape. The humidity level, averaging around 80%, adds to the tropical feel, ensuring that visitors and locals alike should prepare for both the warmth and the refreshing downpours that define this vibrant season.

September Temperature in Kimhae

In September, Kimhae, South Korea, experiences a delightful transition from the sweltering summer heat to the refreshing autumn coolness. The temperatures range from a comfortable minimum of 13°C (55°F) to a warm maximum of 31°C (88°F), with an average of 23°C (73°F) offering the best of both worlds. As the month progresses, you can feel the lingering warmth of summer giving way to a crispness in the air, making it an ideal time for outdoor activities and exploring the vibrant fall foliage. This is a period where days are still pleasantly warm, but the nights begin to carry a cool whisper, hinting at the approaching changes of the season.

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

The chart illustrates September temperature patterns in Kimhae, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kimhae, September typically has an average temperature of 23°C (73°F), with highs reaching up to 31°C (88°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec374150576571788173635240
Data source: Temperature data for Kimhae 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 Kimhae

September is a particularly rainy month in Kimhae, South Korea, with precipitation reaching an impressive 233 mm (9.2 in) over 12 days. This substantial rainfall marks a notable peak in the annual cycle, coming right after the wind-down of the summer months, which see their own high levels of precipitation. The trend indicates that as summer transitions into autumn, the rains persist, albeit with a slight decline from the record-breaking deluge of July at 257 mm (10.1 in). In contrast, as the year progresses into October, precipitation drops to a more modest 96 mm (3.8 in), heralding the dry phase of the autumn season. Thus, September stands out as a pivotal time, bridging the heavy summer rains with the onset of drier weather, revealing the dynamic climatic shifts experienced in this region.

September Precipitation Trends in Kimhae

The chart displays monthly precipitation patterns in Kimhae, 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 Kimhae, September typically receives around 233 mm (9.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec3141929897161257183233962423
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Kimhae

In September, humidity in Kimhae, South Korea, stands at a comfortable 80%, signaling a transition from the sweltering, muggy summer months. Following the peak of 95% in July and the lingering 93% of August, the significant drop to 80% suggests a gradual easing of the summer heat, making September a more pleasant time for outdoor activities. As the year progresses, humidity levels continue to decline, settling at 77% in October and tapering off further into the fall. This pattern highlights a clear trend of high humidity during the summer, followed by a gradual decrease that marks the arrival of autumn, offering residents a welcome reprieve from the oppressive stickiness of peak summer.

September Average Humidity in Kimhae

This chart illustrates the average monthly humidity levels in Kimhae, 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 Kimhae is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%67%65%75%83%87%95%93%80%77%75%73%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kimhae

As September rolls into Kimhae, South Korea, residents and visitors should be mindful of the very high UV Index of 10, translating to a burn time of just 15 minutes for fair-skinned individuals. This month marks a slight dip from the extreme levels seen in the summer, yet it remains a time when sun protection is essential. Notably, the UV Index has fluctuated significantly throughout the year—from a moderate rating of 4 in January to a peak of 12 in July and August—demonstrating a clear trend of increasing intensity as the seasons change. As the days shorten and temperatures begin to cool, September still commands respect for solar exposure. For more details on UV ratings throughout the year, visit Kimhae UV Index.

Maximum UV Index Levels in Kimhae for September

The chart shows the monthly maximum UV Index (UVI) for Kimhae 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 Kimhae typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec457101011121210753
Data source: Kimhae 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 Kimhae

As summer gracefully gives way to autumn in Kimhae, South Korea, September continues to bask in a respectable 241 hours of sunshine. Although this marks a decline from the sun-drenched months of May (295 hours) and August (290 hours), it still stands as a solid precursor to the milder, cooler days ahead. The sunshine hours begin to taper off from the height of summer, hinting at the approaching seasonal shift, while October offers 256 hours, bridging the gap between the lingering warmth of summer and the crisp charm of fall. The overall trend reflects a gradual ebbing of sunlight, yet September's still-bright skies invite residents and visitors alike to enjoy the tail end of summer’s warmth before embracing autumn's arrival.

Monthly Sunshine Duration in Kimhae: September Highlighted

The September sunshine duration represents the total number of hours Kimhae 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.
JanFebMarAprMayJunJulAugSepOctNovDec196h239h267h278h295h293h266h290h241h256h238h244h
Data source: Kimhae September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kimhae During September

In Kimhae, South Korea, September brings a 31% chance of sunny weather, marking a slight uptick from the summer months, but still significantly lower than the more sunlit spring and winter periods. As the hot days of July and August come to a close, which see only 20% and 26% sunny conditions, September begins to transition towards a more favorable climate. However, the likelihood of clear skies remains less than half, suggesting that while some sunshine can be enjoyed, overcast days are still a common theme this month. Ironically, as the seasons shift, the promise of brighter weather returns in October, rising to 55%, inviting a refreshing autumn atmosphere for outdoor enthusiasts.

Percentage of Sunny Days in September in Kimhae

The chart illustrates the percentage of sunny days in Kimhae 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 Kimhae experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec59%56%40%44%38%28%20%26%31%56%68%76%
Data source: Kimhae September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kimhae in September

In Kimhae, South Korea, September welcomes a shift in daylight with approximately 12 hours of sunlight, marking a gradual transition as summer gives way to autumn. Throughout the year, daylight peaks in the vibrant months of May to July, where residents can bask in up to 14 hours of sun. As the temperatures cool in August, daylight starts to wane, dropping to 13 hours, and continues its descent into September. The decrease foreshadows the shorter days of fall, with November and December offering just 10 and 9 hours of daylight, respectively. This rhythmic cycle not only enriches the seasonal experience but also invites a reflective appreciation of nature's changing artistry.

Average Daylight Hours in Kimhae for September

The chart illustrates the variation in daylight duration in Kimhae throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 3m10h 53m11h 58m13h 4m14h14h 28m14h 14m13h 25m12h 22m11h 16m10h 18m9h 48m
Data source: Kimhae daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kimhae

As September arrives in Kimhae, South Korea, the wind begins to pick up its gentle pace once more, averaging 3.8 m/s (8 mph). This marks a notable increase from the calmer months of summer, where winds dipped to around 2.6 m/s in June and 2.9 m/s in both July and August. The return of autumn brings not only a refreshing breeze but a hint of anticipation for the changing seasons. This transitional period is characterized by a slight uptick in wind speed compared to the preceding summer, aligning closer to the averages set in the earlier months of the year. The consistent autumn winds are a delightful shift for residents and visitors alike, making September a particularly invigorating month in Kimhae.

Average September Wind Speed in Kimhae

The chart displays monthly wind speed patterns in Kimhae, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.83.93.53.53.32.63.02.93.8 m/s2.93.23.6
Data source: Kimhae September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kimhae Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures typically range from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), with an average of 23°C (73°F). This month is notably humid, with an average humidity of 80% and significant rainfall, totaling 233 mm (9.2 in) over about 12 days. In contrast, January showcases a much colder climate, with temperatures dropping to a minimum of -11°C (13°F) and peaking at a max of 16°C (62°F), while the average hovers around 3°C (38°F). January experiences much less precipitation, totaling only 31 mm (1.2 in) over just three days, coupled with a slightly lower humidity level of 72%. For more detailed information on January weather, you can visit Kimhae weather in January.

September and February showcase strikingly different weather patterns. In September, temperatures range from a mild 13°C (55°F) to a warm 31°C (88°F) with an average of 23°C (73°F). This month experiences significant precipitation, totaling 233 mm (9.2 in) over approximately 12 days, coupled with high humidity levels at 80%. In contrast, February presents a much colder climate, with temperatures dipping as low as -8°C (17°F) and reaching a maximum of 21°C (71°F), averaging just 5°C (41°F). Precipitation is notably lower, at 41 mm (1.6 in) over only 4 days, and humidity is reduced to 67%. For a more detailed overview, check Kimhae weather in February.

September generally boasts warm temperatures, with a minimum of 13°C (55°F) and a peak of 31°C (88°F), creating a summer-like atmosphere. Humidity is high at 80%, and the month receives significant rainfall, averaging 233 mm over 12 days. In contrast, March experiences much cooler conditions, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 22°C (72°F) and an average of 10°C (50°F). Precipitation in March is lighter at 92 mm, spread over just 7 days, and the humidity is lower at 65%. For more details on March weather, you can visit Kimhae weather in March.

September and April present contrasting weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), with an average of 23°C (73°F). The month is characterized by high humidity at 80% and significant rainfall, totaling 233 mm (9.2 in) over about 12 days. In comparison, April features much cooler temperatures, with a minimum of 2°C (36°F), an average of 14°C (57°F), and a maximum of 25°C (77°F). Precipitation in April is notably lower, with only 98 mm (3.9 in) across about 7 days, and humidity sits at a slightly lower 75%. For a detailed look at April weather, check Kimhae weather in April.

September and May exhibit notable differences in weather patterns. In September, temperatures are generally warmer, with minimums around 13°C (55°F) and maximums reaching up to 31°C (88°F), while May experiences cooler minimums of 7°C (44°F) and a similar maximum of 31°C (88°F). September also sees significantly higher precipitation, with an average of 233 mm (9.2 in) over 12 days compared to May's 97 mm (3.8 in) over 8 days, making September the wetter month. Additionally, humidity levels are quite similar, with September at 80% and May slightly higher at 83%. For more details about May weather, you can check Kimhae weather in May.

September and June both feature similar minimum temperatures, hovering around 13°C (55°F), with June slightly warmer in average temperature at 22°C (71°F) compared to September's 23°C (73°F). However, September can reach a higher maximum temperature of 31°C (88°F), while June peaks at 32°C (90°F). In terms of precipitation, September is considerably wetter, receiving 233 mm (9.2 in) over 12 days compared to June's 161 mm (6.3 in) across 9 days, highlighting a more humid atmosphere in September with 80% humidity versus June's 87%. For more details, visit Kimhae weather in June.

When comparing the weather in September and July, notable differences emerge in both temperature and humidity. September experiences milder temperatures with a minimum of 13°C (55°F), averaging 23°C (73°F), and peaking at 31°C (88°F). In contrast, July tends to be hotter, with minimum temperatures around 17°C (63°F), an average of 26°C (78°F), and a maximum reaching 34°C (94°F). Precipitation levels are fairly similar, with September receiving 233 mm (9.2 in) over 12 days, while July has slightly higher rainfall of 257 mm (10.1 in) over 14 days. Additionally, July's humidity is notably higher at 95% compared to September's 80%. For a more detailed look at July weather, check out Kimhae weather in July.

In comparing the weather between August and September, we see notable shifts in temperature and precipitation. August boasts warmer temperatures, with an average high of 36°C (98°F) and a minimum of 18°C (65°F), while September's temperatures range from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), giving it milder averages. Precipitation also varies, with September receiving 233 mm (9.2 in) over 12 days compared to August's 183 mm (7.2 in) spread over 15 days. Interestingly, humidity in August is higher at 93%, compared to September's 80%. For a closer look at the specifics of August weather, you can refer to Kimhae weather in August.

September and October present a noticeable shift in weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), with an average of 23°C (73°F). This month also experiences substantial rainfall, accumulating 233 mm (9.2 in) over 12 days, along with a relatively high humidity level of 80%. In contrast, October brings cooler temperatures, with a minimum of 5°C (40°F) and an average of 17°C (63°F), peaking at 29°C (84°F). Rainfall decreases significantly to 96 mm (3.8 in) across just 6 rainy days, and humidity slightly drops to 77%. For more details, visit Kimhae weather in October.

In September, the weather is notably warmer, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), and an average of 23°C (73°F). This month also sees significant rainfall, with 233 mm (9.2 in) of precipitation over 12 days, contributing to a high humidity level of 80%. In contrast, November experiences a much cooler climate, with temperatures dropping to a minimum of -1°C (30°F) and topping out at 22°C (73°F), averaging only 11°C (52°F). Rainfall is minimal in November, with just 24 mm (0.9 in) occurring over 2 days, and humidity levels slightly lower at 75%. This stark contrast highlights the transition from the warm, humid days of September to the crisp, cooler conditions of November. For more detailed information, check out Kimhae weather in November.

September and December present stark contrasts in weather conditions. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), with an average of 23°C (73°F). This month experiences considerable rainfall, totaling 233 mm (9.2 in) over 12 days, coupled with a high humidity of 80%. In contrast, December brings much cooler temperatures, with lows plummeting to -8°C (18°F) and highs reaching only 18°C (65°F), averaging around 4°C (40°F). Precipitation decreases significantly, totaling just 23 mm (0.9 in) over 3 days, and humidity also drops to 73%. For more details about the weather specifics in December, you can visit Kimhae weather in December.

Compare Kimhae's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kimhae

As summer transitions into fall, September in Kimhae offers a unique blend of warmth and humidity, setting it apart from the preceding months. With temperatures peaking at a warm 31°C and average readings around 23°C, the month retains a summery feel while gradually cooling down. However, the notable increase in precipitation—spanning 12 days and totalling 233 mm—adds a refreshing twist to the atmosphere. This combination of warmth and moisture contributes to 80% humidity, creating a vibrant environment that is distinctly different from the drier months of July and August. For a detailed overview of Kimhae's climate throughout the year, visit Kimhae Climate.