Last updated: October 30, 2025
In June, Osan, South Korea, experiences a warm and vibrant climate, with temperatures reaching a maximum of 33°C (91°F) and averaging around 22°C (72°F). The season brings a pleasant mix of warm days and cooler nights, with a minimum temperature of 12°C (53°F). Residents and visitors can expect some rainfall, as the month sees about 80 mm (3.1 in) of precipitation over approximately 7 days, contributing to an overall humidity level of 85%. This combination of warmth and moisture fosters lush landscapes and a lively atmosphere, making June a captivating time to explore Osan's charm.
In June, Osan, South Korea welcomes the arrival of summer with noticeably warmer temperatures. The month features a minimum of 12°C (53°F), a comfortable average of 22°C (72°F), and a maximum reaching a sizzling 33°C (91°F). This is a significant increase compared to the earlier months, reflecting a steady transition from spring’s mildness to the heat of summer. With longer days and vibrant outdoor activities, June sets the stage for those seeking to enjoy everything the season has to offer, from local festivals to the beautiful landscape that surrounds Osan. As the heat rises, so does the pulse of city life, making it an ideal time for exploration and adventure.
June in Osan, South Korea, marks a pivotal shift in the weather pattern, featuring an average precipitation of 80 mm (3.1 in) over 7 days of rain. This month bridges the gap between the milder spring showers and the intense downpours of summer. Compared to May's 98 mm over 8 days, June is notably less wet, suggesting a brief respite before the monsoon season. As the temperatures rise, the precipitation begins to set the stage for the more torrential rains of July and August, which often see more than 200 mm of rainfall in just a fortnight. This transition underscores the increasing humidity and the dynamic weather shifts characteristic of the Korean Peninsula during the summer months.
In June, Osan, South Korea, experiences a notable spike in humidity, reaching a significant 85%. This increase is part of a broader trend observed as spring transitions into summer, with humidity levels gradually escalating from 65% in the early months to an all-time high of 91% in July and August. The month of June marks a turning point, where the climate shifts noticeably, setting the stage for the sweltering humidity that characterizes the peak summer months. With humidity rising from 81% in May, it's clear that those living in or visiting Osan should prepare for the oppressive heat and moisture that define this time of year. As autumn approaches, humidity levels gradually decline, but June undoubtedly serves as a reminder of the sultry conditions to come.
June in Osan, South Korea, marks a peak in the UV index, soaring to 10 and categorized as very high. This signals that outdoor enthusiasts need to be particularly vigilant, as the burn time drops to just 15 minutes. The trend leading up to June shows a steady climb in UV levels, starting from a moderate index of 3 in January to a high of 9 in May. As summer approaches, the UV exposure intensifies, with both July and August reaching an extreme rating of 11. Therefore, it's essential to take protective measures throughout the month. For more information on UV levels in Osan, visit Osan UV Index.
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June in Osan, South Korea, shines brightly with an impressive 318 hours of sunshine, marking it as one of the sunniest months of the year. Following a steady increase from 198 hours in January to 315 hours in May, June not only maintains this upward trend but also surpasses the previous month, heralding the arrival of summer with its warm embrace. This sun-drenched month sets the stage for July and August, where hours of sunlight slightly dip but remain generous at 293 and 290 hours, respectively. The gradual decline in sunlight as the year progresses, culminating in 231 hours in November, offers a poignant reminder of the changing seasons. Overall, Osan's June radiance exemplifies the peak of its sunny disposition, inviting residents and visitors alike to bask in the warmth and illumination it has to offer.
In Osan, South Korea, June marks a shift in sunny prospects, with a 39% chance of sunshine that reflects a general downward trend in brightness from the preceding months. While the beginning of the year shows promising sunlit days, particularly in January (49%) and February (53%), the likelihood of clear skies diminishes as spring transitions into summer. Notably, May experiences the lowest chance of sun before June, which offers a brief reprieve from the gloom, though it’s still lower than earlier months like October (47%) and November (57%). As summer progresses, the chances dip further in July and August, highlighting a seasonal pattern where sunny days become less frequent, making June a transitional month characterized by moderate expectations for sunshine.
In Osan, South Korea, the month of June marks the peak of daylight, with approximately 14 hours of sunshine filling the days, mirroring the abundant glow of May and extending into July. This vibrant burst of light represents the culmination of a steady increase from the 9 hours of daylight in January, showcasing a clear and uplifting transition into the summer months. As daylight gradually wanes in August and September, the enchanting long days of June allow residents to immerse themselves in outdoor activities, bask in the sun's warmth, and enjoy the lush landscapes bathed in light before the days begin to shorten again.
As June arrives in Osan, South Korea, the winds begin to calm, registering an average speed of 2.2 m/s (5 mph). This marks a noticeable dip compared to the breezier months of early spring, where winds were more robust, averaging around 2.9 m/s (6-7 mph). Following the peak of May, winds continue to gradually decrease into summer, with subsequent months like July and August further reflecting this downward trend, dipping to 2.0 m/s (4 mph) and 2.3 m/s (5 mph), respectively. The gentle June breezes, while less forceful, contribute to a relaxed atmosphere, welcoming the warmth of summer and hinting at calmer days ahead.
Weather in Osan varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Osan, focusing on differences in temperature, rainfall, humidity, and UV levels.
June and January present stark contrasts in weather. In June, temperatures range from a cool 12°C (53°F) to a warm 33°C (91°F), with an average of 22°C (72°F). The month is characterized by considerable humidity at 85% and receives about 80 mm (3.1 in) of precipitation over 7 days. In contrast, January sees much colder temperatures, with a minimum of -17°C (2°F) and a maximum of just 13°C (55°F), averaging -2°C (29°F). Precipitation is significantly lower at 21 mm (0.8 in) across only 2 days, and the humidity drops to 71%. For a closer look at January's conditions, visit Osan weather in January.
June and February present starkly contrasting weather conditions. In June, temperatures range from a cool 12°C (53°F) to a warm 33°C (91°F), with an average of 22°C (72°F) and a high humidity of 85%. This month experiences around 80 mm (3.1 in) of precipitation over approximately 7 days, indicating a more humid environment.
In contrast, February is characterized by frigid temperatures, with a minimum of -15°C (4°F) and a maximum of 18°C (65°F), averaging around 0°C (33°F). The month sees significantly less precipitation at 23 mm (0.9 in) over about 4 days, and a lower humidity of 65%. For a deeper look into February's weather, you can explore Osan weather in February.
The weather in June is significantly warmer and more humid compared to March. June boasts average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 33°C (91°F), while March sees temperatures from a chilly -6°C (21°F) to a comfortable 21°C (70°F), with an average of only 7°C (44°F). Additionally, June experiences higher precipitation at 80 mm (3.1 in), spread over approximately 7 days, whereas March has 47 mm (1.9 in) of rainfall over just 5 days. The humidity in June is also notably higher at 85%, compared to March's 65%. For more detailed information, you can check out Osan weather in March.
In comparing the weather between June and April, notable differences emerge. June boasts warmer temperatures, with a minimum of 12°C (53°F), an average of 22°C (72°F), and a maximum of 33°C (91°F), while April's temperatures range from a chilly -1°C (30°F) to a comfortable 28°C (82°F), providing an average of 12°C (54°F). Precipitation is higher in June at 80 mm (3.1 in) across 7 days, compared to April's 54 mm (2.1 in) over 5 days. Additionally, June sees increased humidity at 85%, compared to 75% in April. For more details, you can check Osan weather in April.
In June, the weather starts to warm up significantly compared to May, with average temperatures rising from 18°C (64°F) in May to 22°C (72°F) in June. The maximum temperature in June can reach 33°C (91°F), whereas May peaks at a slightly cooler 31°C (89°F). However, June experiences slightly less precipitation, recording 80 mm (3.1 in) over 7 days, compared to May's 98 mm (3.9 in) over 8 days. The humidity in June is a bit higher at 85%, compared to 81% in May. For more detailed information, you can check Osan weather in May.
When comparing the weather in June and July, notable differences emerge. June presents a moderate climate with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 33°C (91°F), accompanied by an average temperature of 22°C (72°F). The month experiences 80 mm (3.1 in) of precipitation over 7 days, with humidity levels at 85%. In contrast, July is considerably warmer and wetter, featuring a minimum temperature of 18°C (65°F) and a peak of 36°C (98°F), resulting in an average of 26°C (79°F). The rainfall in July escalates significantly to 235 mm (9.3 in) spread across 14 days, alongside higher humidity at 91%. For more detailed insights, check out Osan weather in July.
June and August present distinct weather patterns that reflect the transition from early summer to its peak. In June, temperatures range from a minimum of 12°C (53°F) to a maximum of 33°C (91°F), with an average of 22°C (72°F). The month sees about 80 mm (3.1 in) of precipitation over 7 days and an average humidity level of 85%. In contrast, August experiences warmer conditions with minimum temperatures of 16°C (61°F) and maximums rising to 38°C (101°F), averaging 27°C (80°F). This month is significantly wetter, receiving 255 mm (10.1 in) of rain across 14 days, and humidity increases to 91%. For a deeper look at August weather in the area, you can explore Osan weather in August.
In June, temperatures vary from a minimum of 12°C (53°F) to a maximum of 33°C (91°F), with an average of 22°C (72°F). This month experiences an average precipitation of 80 mm (3.1 in) over about 7 days, accompanied by high humidity levels around 85%. In contrast, September sees cooler temperatures, with minimums dropping to 9°C (48°F) and maximums reaching 31°C (88°F), while maintaining a similar average of 22°C (71°F). Precipitation increases significantly to 136 mm (5.4 in) over 9 days, though humidity decreases to 77%. For more information on September weather, you can visit Osan weather in September.
June and October present contrasting weather patterns. In June, temperatures range from a minimum of 12°C (53°F) to a maximum of 33°C (91°F), with an average of 22°C (72°F). The month experiences relatively high humidity at 85% and receives about 80 mm (3.1 in) of precipitation over around 7 days. In contrast, October shows a significant drop in temperatures, with a minimum of 1°C (33°F) and an average of 15°C (59°F), peaking at 29°C (84°F). The month is drier, with only 62 mm (2.5 in) of rain falling over 5 days and slightly lower humidity at 79%. For more detailed insights, you can check Osan weather in October.
June and November present stark contrasts in weather conditions. In June, temperatures typically range from a mild 12°C (53°F) to a hot 33°C (91°F), with an average of 22°C (72°F), accompanied by high humidity levels at 85%. There is also a significant amount of rainfall, totaling 80 mm (3.1 in) over approximately 7 days. In contrast, November ushers in cooler weather, with temperatures varying from a chilly -5°C (23°F) to a comfortable 21°C (70°F), averaging around 8°C (46°F). Rainfall decreases to 54 mm (2.1 in) over about 5 days, and humidity remains relatively lower at 80%. For a more detailed look at November’s weather specifics, you can visit Osan weather in November.
June and December weather present a striking contrast in terms of temperature and humidity. June experiences a warm climate with average temperatures around 22°C (72°F), reaching highs of 33°C (91°F) and lows of 12°C (53°F). It also has a relatively high humidity level at 85% and receives about 80 mm (3.1 in) of precipitation over approximately 7 days. In stark contrast, December brings frigid temperatures, with average readings at 0°C (33°F), highs of 13°C (56°F), and chilling lows plunging to -14°C (8°F). This winter month sees significantly less precipitation, totaling only 26 mm (1.0 in) across about 5 days, and a lower humidity level of 74%. For more detailed information about the conditions in December, visit Osan weather in December.
As June unfolds in Osan, the weather transforms into a delightful warm embrace, contrasting sharply with the cooler months prior. With temperatures soaring to a maximum of 33°C (91°F) and an average of 22°C (72°F), the month invites outdoor adventures, albeit accompanied by higher humidity levels reaching 85%. Rainfall is modest, with approximately 80 mm (3.1 in) over seven days, providing respite from the summer heat. This blend of warmth and occasional showers creates a vivid tapestry of weather, making June a vivid prelude to the summer ahead. For further insights on the seasonal shifts in this region, visit Osan Climate.