Last updated: October 30, 2025
October in Seoul, South Korea, presents a captivating blend of autumn charm, with temperatures ranging from a maximum of 28°C (83°F) to a minimum of 0°C (32°F). The average temperature hovers around a comfortable 14°C (58°F), making it an ideal time for outdoor activities. Visitors can expect approximately 63 mm (2.5 inches) of rainfall over about 6 days, contributing to the region's lush foliage. With an average humidity of 79%, October's weather enhances the vibrant fall colors, inviting both locals and travelers to enjoy the beauty of the season.
As October unfolds in Seoul, South Korea, the city begins to experience a notable transition in its climate, moving from the lingering warmth of summer to the cool embrace of autumn. With temperatures averaging around 14°C (58°F), the days become pleasantly mild, inviting residents and visitors alike to enjoy the vibrant fall foliage. Morning chills dip to 0°C (32°F), hinting at the colder months ahead, while the afternoons can still reach a comfortable maximum of 28°C (83°F). This month marks a sweet spot in the temperature spectrum, blending the cozy feel of sweater weather with occasional warmth, making it an ideal time for outdoor activities and exploration of Seoul's stunning parks and historic sites.
October in Seoul, South Korea, typically ushers in a transitional phase with 63 mm (about 2.5 inches) of rainfall spread over 6 days. As autumn settles in, the city experiences a noticeable decrease in precipitation compared to the summer months, which often boast heavier downpours due to the monsoon season. This mid-autumn rain plays a vital role in preparing the landscape for the cooler months ahead, nourishing the vibrant fall foliage. The shift from the intense July and August rains, which record 252 mm and 269 mm respectively, highlights a trend toward dryer conditions, while still ensuring the city remains lush and inviting. As October advances, the balance of cooler temperatures and gentle rains creates a picturesque setting, making it a delightful time to enjoy Seoul's rich autumn scenery.
As autumn settles in, October in Seoul, South Korea, brings a notable shift in humidity levels with an average of 79%. This figure aligns closely with the 77% humidity of September, suggesting a gradual transition towards drier conditions, but still maintaining a noticeable moisture in the air. Compared to the sweltering humidity heights of July and August, which peak at 91%, October offers a refreshing reprieve while still lingering near the higher end of the spectrum. Overall, the humidity begins to taper off as the year approaches winter, with November’s figure rising slightly to 80%. This trend underscores the city's unique climate, where the vibrancy of autumn is accompanied by comfortable, albeit humid, air.
In October, Seoul experiences a UV Index of 6, categorizing it as high exposure, with a recommended burn time of 25 minutes. This marks a noticeable decline from the peak UV Index values observed during the summer months, which soared to 11 in July and August, indicating extreme exposure levels. As the fall season sets in, sunlight intensity diminishes, creating a more moderate, yet still significant, UV environment. It's essential to remain mindful of sun protection during this month as UV radiation can still pose risks. For ongoing updates and detailed information, be sure to check the Seoul UV Index.
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As October rolls in, Seoul experiences a gentle decline in sunshine hours, averaging 263 hours, a slight dip from September's 262 hours. Following the vibrant summer months, where sunshine peaked in June with 317 hours, the city's daylight begins to soften, transitioning into the crispness of autumn. This month, while fewer in hours compared to the sunny highs of summer, still offers a delightful balance of warmth and coolness, making it an ideal time for residents and visitors alike to enjoy the stunning fall foliage against a backdrop of golden light. The gradual reduction in daylight sets the stage for the serene charm of winter, but for now, October shines with its own unique, mellow brilliance.
In October, Seoul experiences a 43% chance of sunny weather, a slight improvement compared to the preceding months like July and August, which see the sun less frequently, at 30%. As autumn settles in, the likelihood of clear skies gradually increases from the 41% chance in September. While still moderate, October's weather hints at an upward trend towards sunnier days that intensify as the year progresses into the cooler months of November and December, where chances rise to 58% and 64%, respectively. This seasonal shift highlights October as a transitional phase with the potential for pleasant autumn sunlight, making it an inviting time for outdoor activities before the winter chill sets in.
As October arrives in Seoul, South Korea, daylight begins to wane, offering approximately 11 hours of daylight this month. This marks a gradual decline from the summer's peak, where the sun graced the city with 14 hours of light during June, July, and August. The transition from the vibrant days of spring and summer to the shorter, cooler autumn months highlights a distinct pattern: daylight duration peaks in May and June, then slowly decreases through the subsequent months. By October, the daylight reflects the changing season, inviting a cozy atmosphere that sets the stage for the winter months ahead.
As autumn settles in October, Seoul’s wind whispers a gentle lull, with an average speed of 2.2 m/s (5 mph). This marks a slight dip from the preceding months, hinting at the calming transition from the hustle of summer to the serene beauty of fall. Notably, while the wind slows, it carries the crisp scent of changing leaves, transforming the city's ambiance. From January's brisk 2.8 m/s to the more subdued October breezes, there's a clear trend of waning wind speed that mellows the city's vibrant energy. As winter approaches, this shift invites residents and visitors alike to enjoy the cooler air while strolling through Seoul’s picturesque parks, taking in the breathtaking autumn foliage.
Weather in Seoul varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Seoul, focusing on differences in temperature, rainfall, humidity, and UV levels.
In October, the weather is significantly warmer, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 28°C (83°F) and an average of 14°C (58°F). This month experiences more precipitation, averaging 63 mm (2.5 in) across about 6 days, coupled with a humidity level of 79%. In contrast, January brings much colder temperatures, with a minimum of -18°C (1°F) and a maximum of 13°C (55°F), averaging -2°C (28°F). Precipitation is much lower in January at just 19 mm (0.8 in) over approximately 2 days, and humidity drops to 71%. For more details about the January conditions, visit Seoul weather in January.
October and February exhibit stark contrasts in weather conditions. In October, temperatures range from a minimum of 0°C (32°F) to a pleasant average of 14°C (58°F), reaching a maximum of 28°C (83°F) on warmer days. This month experiences relatively high humidity at 79% and sees about 63 mm (2.5 inches) of precipitation over approximately 6 days. In contrast, February is significantly colder, with temperatures dipping as low as -14°C (7°F) and averaging around 0°C (32°F), peaking at 18°C (65°F). The air is drier, with only 22 mm (0.8 inches) of precipitation over 4 days and a lower humidity level of 65%. For those interested in a detailed outlook, check out Seoul weather in February.
October and March showcase distinct differences in weather patterns. In October, temperatures typically range from a minimum of 0°C (32°F) to a maximum of 28°C (83°F), with an average of 14°C (58°F). This month experiences about 63 mm (2.5 in) of precipitation over approximately six days, coupled with a relatively high humidity of 79%. In contrast, March presents a cooler climate, with temperatures ranging from a low of -7°C (20°F) to a high of 21°C (70°F) and an average of 7°C (44°F). Precipitation is less, totaling around 46 mm (1.8 in) over five days, and the humidity is lower at 65%. For more specific insights on March weather, you can visit Seoul weather in March.
In October, the weather features a slightly warmer average temperature of 14°C (58°F), compared to April's average of 12°C (54°F). Both months experience similar maximum temperatures, with October peaking at 28°C (83°F) and April at 28°C (82°F). Precipitation levels are relatively close, with October receiving 63 mm (2.5 in) and April having slightly less at 55 mm (2.2 in), both spread across six rainy days. However, October tends to feel a bit more humid at 79%, while April's humidity is slightly lower at 75%. For more detailed insights on April weather, you can visit Seoul weather in April.
When comparing the weather in October and May, there's a noticeable difference in temperatures and precipitation. October experiences a wider temperature range, with a minimum of 0°C (32°F) and a maximum of 28°C (83°F), while May has milder conditions, ranging from a minimum of 6°C (43°F) to a maximum of 32°C (89°F). In terms of precipitation, May is wetter than October, receiving 111 mm (4.4 in) over 9 days compared to October's 63 mm (2.5 in) over 6 days. Humidity levels in both months are similar, with October at 79% and May slightly higher at 81%. For more detailed information, you can check Seoul weather in May.
October and June present distinctly different weather patterns. In October, temperatures range from a chilly 0°C (32°F) at night to a comfortable average of 14°C (58°F), peaking at 28°C (83°F) during the day. The air tends to be quite humid at 79%, with about 63 mm (2.5 in) of precipitation over approximately 6 days. In contrast, June is generally warmer, starting with a minimum temperature of 12°C (54°F) and averaging around 22°C (72°F), which can soar to a sweltering 35°C (94°F). The month sees an increased precipitation level of 86 mm (3.4 in) over about 8 days, along with slightly higher humidity at 85%. For more detailed insights, you can check Seoul weather in June.
October and July in Seoul present starkly contrasting weather patterns. In October, temperatures range from a minimum of 0°C (32°F) to a maximum of 28°C (83°F), with an average of 14°C (58°F). The month experiences moderate rainfall, totaling 63 mm (2.5 in) across about 6 days, with humidity at 79%. In contrast, July is much warmer, with temperatures ranging from 18°C (64°F) to a scorching 36°C (97°F) and an average of 26°C (79°F). This summer month sees significantly more rainfall, accumulating 252 mm (9.9 in) over 15 days, accompanied by higher humidity levels at 91%. For more details, you can check Seoul weather in July.
In comparing the weather between October and August, October experiences a more moderate temperature range, with minimums dipping to 0°C (32°F) and average highs reaching 28°C (83°F). In contrast, August is significantly warmer, with minimums around 16°C (61°F) and maximum temperatures soaring to 38°C (101°F). Additionally, October has lower precipitation levels at 63 mm (2.5 in) over just 6 days, while August is quite wet, receiving 269 mm (10.6 in) over 16 days. Humidity is also noticeably higher in August at 91%, compared to October's 79%. For more details about August weather, you can check out Seoul weather in August.
In comparing the weather between September and October, we notice a distinct transition as autumn sets in. October experiences cooler temperatures with a minimum of 0°C (32°F) and an average of 14°C (58°F), contrasted with September's milder minimum of 10°C (50°F) and average of 21°C (70°F). While October's maximum temperature reaches 28°C (83°F), September boasts a slightly higher maximum of 31°C (88°F). Furthermore, October sees increased precipitation at 63 mm (2.5 in) over six days, compared to September’s 133 mm (5.2 in) across nine days. Despite the slight increase in humidity—79% in October versus 77% in September—these changes highlight a shift towards a cooler and drier climate as the months progress. For more detailed insights on September weather, check out Seoul weather in September.
October and November exhibit notable differences in temperature and weather patterns. In October, temperatures range from a minimum of 0°C (32°F) to a comfortable average of 14°C (58°F), peaking at around 28°C (83°F). This month receives about 63 mm (2.5 in) of precipitation over approximately 6 days, with humidity hovering at 79%. In contrast, November sees a drop in average temperatures, with a minimum of -7°C (21°F) and an average of 7°C (45°F), while the maximum reaches 21°C (70°F). Precipitation decreases slightly to 54 mm (2.1 in) over just 5 days, accompanied by a slight rise in humidity to 80%. For more detailed insights into the weather during this time, you can check Seoul weather in November.
October and December present stark contrasts in weather conditions. In October, temperatures can range from a chilly 0°C (32°F) at night to a warm 28°C (83°F) during the day, with an average temperature of 14°C (58°F). The month sees about 63 mm (2.5 in) of precipitation over roughly six days, and humidity levels are relatively high at 79%. In contrast, December brings much colder temperatures, with nighttime lows plummeting to -15°C (5°F) and daytime highs averaging around 12°C (54°F), resulting in an average temperature of -1°C (31°F). Rainfall in December is lower at 22 mm (0.9 in) over about four days, and humidity decreases slightly to 74%. For more detailed information, check out Seoul weather in December.
As October unfolds in Seoul, the city experiences a delightful transition from the warmth of summer to the crispness of autumn. With daytime temperatures averaging 14°C yet peaking at a maximum of 28°C, the month provides a comfortable climate that encourages outdoor exploration. Unlike the heavier rainfalls of the earlier months, October brings a milder precipitation amount of 63 mm over about 6 days, adding a refreshing touch without overwhelming the bustling streets. The 79% humidity adds a slight chill to the air, especially during the nighttime when temperatures can dip to a brisk 0°C. This unique blend of warmth and coolness sets October apart, making it an ideal time to enjoy Seoul's vibrant fall foliage and cultural festivities. For further insights into the city's weather patterns, visit Seoul Climate.