Last updated: October 30, 2025
July in Seoul, South Korea offers a dynamic blend of weather experiences that speak to the heart of summer. With maximum temperatures soaring to a sweltering 36°C (97°F), the city often averages a warm 26°C (79°F) while dipping to a cooler 18°C (64°F) at night. This month is characterized by significant rainfall, accumulating to about 252 mm (9.9 in) over 15 days, making it one of the wetter months of the year. The humidity levels hover around a steamy 91%, creating a vibrant, lush atmosphere that showcases the beauty of the season despite the downpours.
In July, Seoul experiences a notable shift in climate, marking the peak of summer with average temperatures soaring to 26°C (79°F). This month witnesses minimums around 18°C (64°F), providing a warm backdrop for outdoor activities and festivals. The maximum temperatures can reach up to 36°C (97°F), often leading to sweltering days that invite locals and tourists alike to seek refuge in the city's cooler spots, such as parks or cafes. Compared to the cooler months, July is distinctly warmer and more humid, setting the stage for a lively summer atmosphere filled with cultural events and evening strolls under vibrant city lights.
July marks a significant peak in precipitation for Seoul, South Korea, with an impressive 252 mm (9.9 in) of rain, making it one of the wettest months of the year. This deluge occurs over 15 days, reflecting a marked increase in both intensity and frequency compared to earlier months like May and June, which saw 111 mm and 86 mm respectively. The trend indicates that as summer progresses, the city experiences not only heavier rainfall but also more frequent stormy days, a shift from the drier, cooler months at the year's beginning. This pattern continues into August, where precipitation rises even further to 269 mm (10.6 in), suggesting that the monsoon season profoundly impacts Seoul’s climate dynamics.
In July, Seoul experiences its peak humidity, soaring to a sweltering 91%. This significant rise follows a gradual increase from 71% in January, with humidity levels climbing steadily throughout the spring and summer months. By June, the air becomes notably thick at 85%, setting the stage for the oppressive summer heat. July’s high humidity is maintained into August, creating a steamy climate that can linger into early fall. As the seasons transition into autumn, humidity begins to taper off, dropping to 77% by September. This trend underscores the stark contrast between the dry winter months and the sultry, humid summer, making July a defining time in Seoul’s weather pattern.
In July, Seoul experiences its highest UV Index, peaking at 11 and falling into the extreme exposure category. With a burn time of just 10 minutes, this month's intense sunlight necessitates extra precautions for outdoor enthusiasts. Following the gradual rise in UV levels from the moderate indices of January and February, the summer months—June through August—showcase a striking trend towards extreme exposure, urging residents and visitors alike to stay vigilant about sun protection. As the UV Index remains at this elevated level through August, it’s crucial to prioritize safety to enjoy the vibrant outdoor offerings of the city. For more insights on UV levels in Seoul, check out Seoul UV Index.
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In July, Seoul basks in an impressive 294 hours of sunshine, contributing to the peak of summer brightness after a steady climb throughout the year. Following June's high of 317 hours, there's a slight dip, yet July still boasts generous daylight, providing the perfect backdrop for vibrant activities and cultural events. The month transitions from the preceding sunny June and anticipates the lushness of August, which offers 289 hours of sunshine. This downward trend in sunlight as summer progresses, however, remains minimal, allowing locals and visitors alike to enjoy the warm atmosphere before the cooler days of autumn begin.
In July, Seoul experiences a notable dip in sunny weather, with only a 30% chance of bright skies. This marks a significant decline from the earlier months, where January and February enjoy a more promising 55% chance of sunshine. As spring transitions to summer, the probability of sun continues to diminish, hitting its annual low during July and August. Following this, the likelihood gradually picks up in September, reflecting a gradual shift back toward sunnier days as autumn approaches. Overall, those planning to enjoy outdoor activities in July should be prepared for the possibility of overcast skies and occasional rain.
In July, Seoul basks in 14 hours of daylight, maintaining the same brightness as June, but the summer heat reaches its peak. This month marks the height of sunlight, as the city transitions from the longer days of spring, where daylight stretches up to 14 hours in May and June, to the gradual decrease that begins in August with 13 hours. The steady daylight duration in July highlights the vibrant energy of the city, inviting outdoor activities and social gatherings. As summer ebbs into autumn, the charm of Seoul's long, sunlit days begins to give way to the crispness of fall, making July a time to relish the warmth and brightness before shorter days approach.
In July, Seoul experiences its calmest breezes of the year, with an average wind speed dipping to just 1.8 m/s (4 mph). This gentle airflow is a notable decline from the 2.0 m/s (4 mph) recorded in June, reflecting the city's tranquil summer vibe. As the sweltering heat of the season sets in, residents and visitors alike can enjoy the warmth without the distraction of brisk winds. This low wind speed trend continues into August, where the average rises slightly to 2.2 m/s (5 mph), hinting at a gradual return to more active breezes as summer gives way to early autumn.
Weather in Seoul varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Seoul, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in July and January presents a striking contrast in Seoul. In July, temperatures range from a minimum of 18°C (64°F) to a scorching maximum of 36°C (97°F), with an average temperature of 26°C (79°F). The month is also characterized by high humidity at 91% and significant rainfall, with 252 mm (9.9 in) of precipitation spread over 15 days. In stark contrast, January experiences frigid temperatures, with a minimum of -18°C (1°F) and a maximum of 13°C (55°F), resulting in an average of -2°C (28°F). Precipitation is minimal, totaling just 19 mm (0.8 in) across 2 days, while the humidity decreases to 71%. For more details, check out Seoul weather in January.
July and February present stark contrasts in weather patterns. In July, temperatures soar with a minimum of 18°C (64°F) and can reach a maximum of 36°C (97°F), accompanied by high humidity levels of 91% and substantial precipitation of 252 mm (9.9 in) over approximately 15 days. In contrast, February experiences much colder temperatures, with a minimum of -14°C (7°F) and an average of 0°C (32°F), peaking at 18°C (65°F). Precipitation is significantly lower at just 22 mm (0.8 in), occurring on only 4 days, and humidity levels drop to 65%. For more details on February weather, you can visit Seoul weather in February.
July and March present striking contrasts in weather. In July, temperatures soar with a minimum of 18°C (64°F) and an average high reaching 36°C (97°F), accompanied by high humidity levels of 91%. This month also experiences significant rainfall, totaling 252 mm (9.9 in) over about 15 days. In contrast, March sees much cooler temperatures, with a minimum of -7°C (20°F) and an average high of 21°C (70°F). The precipitation in March is considerably lower at 46 mm (1.8 in) over just 5 days, and humidity sits at a more moderate 65%. For more details, check out Seoul weather in March.
July and April present stark contrasts in weather. In July, temperatures soar with a minimum of 18°C (64°F) and averaging 26°C (79°F), peaking at a sweltering 36°C (97°F). The month is characterized by high humidity at 91% and significant rainfall, accumulating 252 mm (9.9 in) over 15 days. On the other hand, April offers milder conditions, with temperatures ranging from a chilly minimum of 0°C (32°F) to a pleasant maximum of 28°C (82°F), while averaging 12°C (54°F). Precipitation in April is much lower, totaling 55 mm (2.2 in) over just 6 days, and humidity is relatively comfortable at 75%. For more details, check out Seoul weather in April.
In comparison to May, July features significantly warmer temperatures, with average highs reaching up to 36°C (97°F), compared to May's maximum of 32°C (89°F). The minimum temperatures are also higher in July, starting at 18°C (64°F) compared to a brisk 6°C (43°F) in May. Alongside the heat, July experiences much more precipitation, totaling 252 mm (9.9 in) over approximately 15 days, while May sees only 111 mm (4.4 in) across 9 days. Despite the higher humidity in July at 91%, May still maintains a relatively high humidity level of 81%. For more detailed information, you can check Seoul weather in May.
In comparing the weather between June and July, July experiences significantly warmer temperatures, with an average of 26°C (79°F) compared to June's 22°C (72°F). While both months see high temperatures, July has a higher maximum of 36°C (97°F), edging out June's maximum of 35°C (94°F). Additionally, July is marked by increased rainfall, with 252 mm (9.9 in) of precipitation over 15 days, in stark contrast to June's 86 mm (3.4 in) over just 8 days. Humidity also rises in July, averaging 91%, compared to June's 85%. For a more detailed look at June's weather, you can visit Seoul weather in June.
In comparing the weather of July and August, both months experience warm temperatures with average highs around 26°C (79°F) to 26°C (80°F). However, August tends to be slightly hotter, reaching a maximum of 38°C (101°F), compared to July's 36°C (97°F). Precipitation is also a notable factor, with August recording 269 mm (10.6 in) over 16 days, while July has 252 mm (9.9 in) across 15 days. Both months share a high humidity level of 91%, contributing to the overall warmth and mugginess during this time of year. For more specifics on August weather, you can check out Seoul weather in August.
In July, the weather is characterized by high temperatures, with a minimum of 18°C (64°F), an average of 26°C (79°F), and a maximum reaching up to 36°C (97°F). The month also sees significant rainfall, with 252 mm (9.9 in) of precipitation spread over 15 days, resulting in high humidity levels of 91%. In contrast, September brings a marked decrease in temperatures, featuring a minimum of 10°C (50°F), an average of 21°C (70°F), and a maximum of 31°C (88°F). The level of precipitation also drops to 133 mm (5.2 in) over 9 days, and humidity falls to a more comfortable 77%. For more details on weather patterns, you can check Seoul weather in September.
July and October present distinctly different weather patterns. July is characterized by high temperatures, ranging from a minimum of 18°C (64°F) to a scorching maximum of 36°C (97°F), with an average temperature of 26°C (79°F). This month also sees significant rainfall, with 252 mm (9.9 in) of precipitation over about 15 days, contributing to a high humidity level of 91%. In contrast, October brings a much cooler climate, with temperatures ranging from 0°C (32°F) at night to a pleasant maximum of 28°C (83°F) during the day, and an average temperature of 14°C (58°F). Rainfall is considerably reduced, totaling 63 mm (2.5 in) over just 6 days, and humidity drops to 79%. For more detailed information, you can visit Seoul weather in October.
In July, the weather is characterized by warm temperatures, with highs reaching up to 36°C (97°F) and an average of 26°C (79°F), accompanied by high humidity levels at 91%. The month experiences significant rainfall, accumulating 252 mm (9.9 in) over about 15 days, making it one of the wettest months of the year. In contrast, November sees much cooler conditions, with average temperatures around 7°C (45°F), ranging from a chilly -7°C (21°F) at night to a mild 21°C (70°F) during the day. Precipitation is considerably lower at 54 mm (2.1 in) over just 5 days, and the humidity decreases slightly to 80%. For a more detailed look at the weather patterns in November, visit Seoul weather in November.
In July, the weather is characterized by warm temperatures, with a minimum of 18°C (64°F) and an average high reaching 36°C (97°F). It is also quite humid, with humidity levels around 91% and significant precipitation of 252 mm (9.9 in) over 15 days, making it one of the wettest months of the year. In stark contrast, December features much colder conditions, with temperatures dipping as low as -15°C (5°F) and an average maximum of only 12°C (54°F). The month sees minimal precipitation of just 22 mm (0.9 in) spread over 4 days, and lower humidity levels at 74%. This dramatic shift from the sweltering summer heat to the frigid winter cold highlights the contrasting climates of July and December in Seoul. For more details, you can check Seoul weather in December.
July in Seoul brings a sweltering heat that sets it apart from the milder months of spring and autumn. With temperatures soaring to a maximum of 36°C (97°F), the city experiences its warmest days, accompanied by high humidity levels that can reach up to 91%. Rainfall becomes a frequent visitor, totaling an average of 252 mm over 15 days, making July one of the wettest months of the year. This combination of heat and humidity creates a vibrant yet challenging climate, encouraging residents and visitors alike to seek out cool escapes. For a deeper understanding of seasonal variations, check out the details at Seoul Climate.