Last updated: October 30, 2025
In October, Jeju City experiences a delightful blend of mild weather and autumn hues. The temperature swings from a pleasant minimum of 11°C (53°F) to a warm maximum of 27°C (81°F), with an average of 19°C (66°F). While the month typically sees about 109 mm (4.3 in) of rainfall over 9 days, the elevated humidity levels, averaging 78%, enhance the island's lush landscapes. Visitors are treated to crisp, refreshing air and a vibrant atmosphere, making it an optimal time to explore Jeju's natural beauty and cultural treasures.
In October, Jeju City experiences a delightful transition into autumn, with minimum temperatures settling at a comfortable 11°C (53°F) and rising to a pleasant average of 19°C (66°F). The maximums can soar up to 27°C (81°F), making it an ideal time for outdoor exploration and enjoying the vibrant fall foliage. Compared to the preceding months, where summer's heat lingered with highs reaching into the low 30s, October offers a refreshing respite as days gradually cool down but remain pleasantly warm. This shift not only highlights the city's diverse climate but also invites locals and travelers alike to bask in the beauty of Jeju's autumn landscape.
In October, Jeju City experiences a notable shift in precipitation, receiving 109 mm (4.3 in) over approximately 9 days. This marks a decrease from the intense rainfall seen in September, which recorded a staggering 298 mm (11.7 in) over 15 days. While October's precipitation amounts are significant, they reflect a transition towards drier conditions as the region approaches winter. The month typically offers a refreshing reprieve from the summer's heavy monsoon rains, making it an appealing time for outdoor activities amidst the vibrant autumn scenery.
In October, Jeju City experiences a notable shift in humidity compared to the sweltering summer months, settling at 78%. This marks a significant decrease from the peak humidity of 98% in July and 96% in August, as the island transitions away from the high summer heat. After months of intense moisture, September's 84% humidity hints at the welcoming arrival of autumn, providing residents and visitors with a more comfortable atmosphere. As the year progresses towards winter, the humidity continues its downward trend, tapering off to 73% in November, showcasing Jeju's dynamic climate and the refreshing relief of fall.
In October, Jeju City experiences a UV Index of 7, placing it in the high exposure category, which means that skin can burn after about 25 minutes of unprotected exposure. This month marks a shift as summer’s extreme UV levels recede, yet caution is still advised. The trend shows that after reaching peaks of 12 during the blistering summer months, the UV Index gradually declines, with measurements of 10 in September and 6 in November. As the season transitions to cooler weather, it's essential to remain vigilant in protecting your skin, particularly during midday hours. For more detailed information, visit Jeju City UV Index.
UV Risk Categories
As October graces Jeju City with its presence, the island enjoys an impressive 268 hours of sunshine, continuing the trend of significant daylight witnessed throughout the year. After the peak of 318 hours in August, sunlight begins to retreat slightly, but October remains a vibrant month, showcasing a balance of warm days and crisp autumn air. The gradual decline from the summer months is evident, yet this time of year still holds more sunshine than earlier months like January and February, which see only 166 and 228 hours respectively. As the landscape transitions with the fall foliage, the sunshine serves as a reminder of the island's year-round beauty and appeal.
As October rolls in, Jeju City experiences a notable shift in weather, boasting a 56% chance of sunny days. This is a significant increase compared to the summer months, where the likelihood of sun dips as low as 24% in July. The trend is clear: as the year progresses toward autumn, the sunny days begin to outweigh the cloudier ones, with October standing out as one of the sunniest months of the year. Following October, the likelihood remains relatively high at 51% in November, making this period a splendid time to enjoy Jeju’s breathtaking landscapes under clear skies. Overall, October presents a delightful opportunity for outdoor activities amidst the island's vibrant fall foliage.
As autumn unfolds in Jeju City, South Korea, October brings a gentle transition in daylight duration, featuring approximately 11 hours of sunlight each day. This marks a slight decline from the sun-drenched months of summer, where daylight peak at 14 hours in June and July. As the year progresses, daylight gradually wanes from the sunniest summer months, reflecting nature’s rhythm and signaling the approach of winter. This trend showcases a vibrant cycle, with longer, vibrant days in spring and early summer giving way to the softer, more subdued light of autumn, creating a picturesque backdrop for outdoor adventures and the island's stunning landscapes.
As October settles in on Jeju City, South Korea, the gentle breezes begin to encapsulate the island in a refreshing embrace. The average wind speed for the month is 4.6 m/s (10 mph), a subtle increase from the calmer summer months. This trend reflects a gradual shift from the lighter winds of June and August, which sometimes dipped to 3.3 m/s (7 mph) and 3.9 m/s (9 mph), to a more invigorating atmosphere that prepares residents and visitors alike for the upcoming chill of winter. As the autumn leaves begin to scatter, October's winds carry a sense of change, marking the transition toward the stronger gusts of November and December, where winds will often reach 5.5 m/s (12 mph) and beyond. Embracing the October winds in Jeju is not just a seasonal experience, but an invitation to witness nature’s metamorphosis.
Weather in Jeju City varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Jeju City, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present contrasting weather conditions. In October, temperatures range from a comfortable minimum of 11°C (53°F) to a warm maximum of 27°C (81°F), with an average of 19°C (66°F). The month is relatively wet, receiving 109 mm (4.3 in) of precipitation over 9 days, and boasts a high humidity level of 78%. In contrast, January experiences a significant drop in temperatures, with a minimum of -2°C (29°F) and an average of just 6°C (44°F), peaking at 19°C (66°F). This month sees less precipitation, totaling 58 mm (2.3 in) spread over 10 days, and a lower humidity of 72%. For more detailed insights, you can check Jeju City weather in January.
October and February present distinctly contrasting weather conditions. In October, temperatures typically range from a mild 11°C (53°F) at night to a warm 27°C (81°F) during the day, making it a pleasant month with an average temperature of 19°C (66°F). However, it also sees considerable rainfall, with 109 mm (4.3 in) of precipitation over about 9 days and a humidity level of 78%.
In contrast, February experiences much cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 17°C (63°F), resulting in an average of just 7°C (44°F). Precipitation is lower during this month, totaling 59 mm (2.3 in) over the same number of days, and humidity is slightly reduced at 70%. For more detailed information, visit Jeju City weather in February.
October weather is generally warmer and more humid than March, with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (81°F). In contrast, March experiences cooler temperatures, with highs only reaching up to 18°C (65°F) and a minimum of 3°C (37°F). Both months see significant precipitation, though October has a slightly higher amount at 109 mm (4.3 in) compared to March's 101 mm (4.0 in). Additionally, October typically has 9 days of rainfall and a humidity level of 78%, while March features 11 rainy days and a lower humidity at 73%. For a closer look at conditions during this transition period, you can explore Jeju City weather in March.
When comparing the weather in October and April, October tends to be warmer with average temperatures ranging from a mild 11°C (53°F) at night to a comfortable 27°C (81°F) during the day. In contrast, April features cooler temperatures, with averages sitting between 6°C (43°F) and 20°C (69°F). Rainfall is more prominent in October, with 109 mm (4.3 in) over about 9 days, compared to April’s 91 mm (3.6 in) spread across 7 days. Additionally, while both months experience relatively high humidity levels, October is slightly less humid at 78%, compared to April's 83%. For more detailed weather insights, you can check Jeju City weather in April.
October and May offer distinct weather experiences. In October, temperatures range from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), with an average of 19°C (66°F). The month sees 109 mm (4.3 in) of precipitation over 9 days, and humidity levels at 78%. In contrast, May has slightly cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 24°C (75°F), averaging 17°C (63°F). It experiences less rainfall, totaling 92 mm (3.6 in) over the same number of days, but with a higher humidity level of 89%. For more details on May weather in Jeju, check Jeju City weather in May.
When comparing the weather in October and June, several differences stand out. October generally has milder temperatures with a minimum of 11°C (53°F) and an average of 19°C (66°F), peaking at 27°C (81°F). In contrast, June starts off warmer, with minimum temperatures around 16°C (60°F) and an average of 21°C (70°F), reaching a maximum of 26°C (79°F).
Precipitation levels are also noteworthy; June experiences slightly more rain, totaling 141 mm (5.6 in) over approximately 10 days, compared to October's 109 mm (4.3 in) over 9 days. Moreover, June boasts higher humidity at 93%, while October's humidity sits at 78%, making June feel more humid and sticky. For more detailed information, you can check out Jeju City weather in June.
When comparing the weather in October and July, October offers more moderate temperatures with a minimum of 11°C (53°F) and a maximum of 27°C (81°F), while July is notably warmer, featuring a minimum of 19°C (67°F) and a maximum of 31°C (88°F). Additionally, October experiences less precipitation, averaging 109 mm (4.3 in) over 9 days, compared to July's 170 mm (6.7 in) over 14 days. Humidity levels are also more comfortable in October at 78%, in contrast to the high humidity of 98% that characterizes July. For more detailed insights on July weather, you can check Jeju City weather in July.
October weather is generally cooler and more temperate compared to August. In October, temperatures range from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), with an average of 19°C (66°F). The month experiences about 109 mm (4.3 in) of precipitation over 9 days, along with a humidity level of 78%. In contrast, August tends to be much warmer, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 31°C (88°F) and an average of 27°C (81°F). However, it is also more humid, with humidity levels reaching 96% and significantly higher precipitation at 197 mm (7.7 in) over 15 days. For a detailed look at August weather, you can visit Jeju City weather in August.
In comparing the weather of October and September, October presents a notable shift in temperatures and precipitation. While September experiences a higher average temperature of 23°C (74°F) and maximums reaching up to 28°C (83°F), October sees a slight drop, with average temperatures around 19°C (66°F) and maximums reaching 27°C (81°F). Additionally, October is characterized by lower humidity levels at 78%, compared to September's 84%. However, October has a higher number of rainy days—9 as opposed to 15 in September—despite the total precipitation being significantly less at 109 mm (4.3 in) compared to September's 298 mm (11.7 in). For a detailed look at September's weather specifics, check out Jeju City weather in September.
October weather is generally warmer and wetter compared to November. In October, temperatures range from a mild minimum of 11°C (53°F) to a comfortable maximum of 27°C (81°F), with an average of 19°C (66°F). The month also sees significant rainfall, with 109 mm (4.3 in) of precipitation over 9 days and humidity levels around 78%. In contrast, November experiences cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 22°C (71°F), averaging 14°C (57°F). Precipitation decreases to 46 mm (1.8 in) over just 7 days, and humidity slightly lowers to 73%. For more details, you can check Jeju City weather in November.
In October, the weather is typically warmer, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), and an average of 19°C (66°F). The month sees significant rainfall, averaging 109 mm (4.3 in) over approximately 9 days, contributing to a higher humidity level of 78%. In contrast, December offers a cooler climate, featuring a minimum temperature of 0°C (33°F) and an average of only 9°C (48°F), with a maximum reaching 20°C (68°F). Precipitation decreases to 61 mm (2.4 in) spread across 10 days, and humidity lowers slightly to 71%. For more detailed information about December weather in Jeju, you can visit Jeju City weather in December.
As October unfolds in Jeju City, the weather presents a delightful transition into autumn, with notably milder temperatures compared to the sweltering summer months. With average highs around 19°C and a comfortable low of 11°C, visitors can enjoy pleasant days that invite exploration. However, be prepared for frequent showers, as this month sees about 109 mm of rainfall across approximately 9 days, contributing to the region's lush landscapes. The humidity remains relatively high at 78%, offering a crisp freshness that sets October apart from the hotter, drier summer season. For a deeper dive into the climate nuances of this enchanting island, check out Jeju City Climate.