Last updated: October 30, 2025
In Osan, South Korea, March heralds the transition from winter to spring, featuring a maximum temperature of 21°C (70°F) and an average of 7°C (44°F). However, the month can still chill with minimum lows dipping to -6°C (21°F). While residents and visitors can enjoy the burgeoning warmth, they should also prepare for approximately 47 mm (1.9 in) of rain over five days, contributing to a humidity level around 65%. As the days grow longer and blossoms begin to emerge, March in Osan is a vibrant time of year, juxtaposing cool nights with pleasantly warming days.
In March, Osan, South Korea, slowly awakens from the chill of winter, as temperatures begin to rise significantly. With a minimum dipping to -6°C (21°F) and a pleasantly mild average of 7°C (44°F), the city experiences a refreshing shift. The maximum temperature can reach a comfortable 21°C (70°F), hinting at the arrival of spring and the vibrant colors it brings. This month marks a key transition, with a notable increase in warmth compared to the frigid depths of January and February. As daylight extends and nature blossoms, March invites both locals and visitors to enjoy the outdoors, embracing the promise of warmer days ahead.
March marks a noticeable shift in Osan's precipitation patterns, as the region experiences a significant increase in rainfall compared to the preceding months. With 47 mm (1.9 in) of precipitation over 5 days, March nearly doubles the amounts seen in January and February, reflecting the transition towards the wetter spring season. This upward trend continues into April and May, indicating that Osan prepares for its rainy months ahead. As the year progresses, the increase in precipitation becomes more pronounced, especially during the summer months, setting the stage for the heavier monsoon rains that follow. This gradual buildup not only invigorates the local flora but also highlights the importance of March as a crucial month in the annual rainfall cycle.
As winter gives way to spring, March in Osan, South Korea, maintains a consistent humidity level of 65%, mirroring February's figures. This mild humidity sets the stage for the gradual rise that follows in April, where levels jump to 75%, signaling the onset of warmer weather. Interestingly, March serves as a transitional month, hinting at the more humid conditions ahead. As the seasons shift into summer, humidity levels will steadily climb, peaking at 91% in July and August. Overall, March presents a balance, allowing residents to enjoy the fresh spring air before the humidity envelops the region in the subsequent months.
As March rolls into Osan, South Korea, the UV Index rises, indicating a shift towards sunnier days. With a UV Index of 6, categorized as high, residents and visitors need to be more vigilant, as unprotected skin may burn in just 25 minutes. This marks a notable increase from February’s 4, which had the same moderate exposure level as January. Looking ahead, April and May see even higher indices, with UV levels soaring to 8 and 9, respectively, emphasizing the need for sun protection as we transition into the warmer months. Keeping an eye on the UV Index is essential for staying safe under the sun—check out the details at Osan UV Index to plan your outdoor activities wisely.
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As winter fades and spring takes hold in Osan, South Korea, March emerges as a vibrant month, basking in 283 hours of sunlight. This marks a noticeable increase from February's 242 hours, signaling the arrival of brighter days ahead. Following the trend of growing daylight, April continues to shine even more brightly with 289 hours, leading into the sun-drenched glory of May and June, which boast an impressive 315 and 318 hours respectively. This gradual climb in sunshine not only uplifts the spirits of the residents but also sets the stage for lively outdoor activities. With each passing month, the warmth of the sun invites everyone to embrace the beauty of springtime in Osan, making it a season rich with opportunities to savor the outdoors.
In Osan, South Korea, March presents a 43% chance of sunny weather, a dip compared to the previous months of January (49%) and February (53%). This trend suggests that as winter transitions to spring, the likelihood of sun begins to wane slightly, with warmer months ahead still holding potential for sunny days. Interestingly, the chances remain consistent alongside April, hinting at the region’s variable weather as it inches towards summer. However, as we look forward to May and June, the probability drops further, highlighting a pattern where summer might not be the sunniest season in Osan. The data showcases the dynamic nature of Osan's climate, encouraging residents and visitors alike to embrace the beauty of uncertainty in early spring.
As March unfolds in Osan, South Korea, the days begin to noticeably lengthen, offering 11 hours of daylight—an increase that reflects the gradual transition into spring. This upward trend in daylight hours continues from the previous months, building on February's 10 hours and heralding a scenic shift in the landscape. The burgeoning daylight not only brightens the skies but also invites residents outdoors to embrace the refreshing air and blooming nature. Anticipating April, where daylight extends even further to 13 hours, March serves as a gentle prelude to the vibrant and lively days ahead, illustrating a compelling rhythm of renewal as the seasons progress.
As March sweeps into Osan, South Korea, the calming breeze carries a hint of change with an average wind speed of 2.7 m/s (6 mph). This is a gentle drop from the previous months, suggesting a transition from the brisk winter winds of January and February, which saw averages of 3.1 m/s and 3.4 m/s, respectively. Following this trend, April brings a slight increase back to 2.9 m/s, setting the stage for the mild winds of spring. Overall, as the seasons shift, the wind patterns reflect a rhythmic flow that mirrors the changing climate, inviting both locals and visitors to enjoy the refreshing air as nature emerges from its winter slumber.
Weather in Osan varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Osan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparison to January, March presents a notable shift in weather conditions. While January boasts colder temperatures with a minimum of -17°C (2°F) and an average of -2°C (29°F), March brings a milder atmosphere with temperatures ranging from a minimum of -6°C (21°F) to an average of 7°C (44°F), peaking at a comfortable 21°C (70°F). Additionally, January experiences less precipitation, recorded at only 21 mm (0.8 in) over just 2 days, whereas March sees a higher volume of 47 mm (1.9 in) spread across 5 days. Although humidity levels are slightly higher in January at 71% compared to March's 65%, the overall warmer temperatures and increased rainfall in March signal the onset of spring. For a deeper understanding of January's climate, you can check Osan weather in January.
March experiences a notable shift in weather compared to February. While February sees lower average temperatures, with a minimum of -15°C (4°F) and a maximum of 18°C (65°F), March warms up significantly, showcasing a minimum of -6°C (21°F) and a maximum of 21°C (70°F). Additionally, precipitation increases in March to 47 mm (1.9 in) over five days, compared to February's 23 mm (0.9 in) over four days. Notably, despite these differences, humidity remains steady at 65% in both months. For a detailed look at February's weather, you can check Osan weather in February.
March and April present a noticeable transition in weather patterns. In March, temperatures range from a chilly minimum of -6°C (21°F) to a comfortable maximum of 21°C (70°F), with an average of 7°C (44°F) and just 47 mm of precipitation over five days, resulting in a moderate humidity level of 65%. In contrast, April sees a warmer climate with minimum temperatures of -1°C (30°F) and a maximum reaching 28°C (82°F), averaging 12°C (54°F). Despite slightly higher precipitation at 54 mm, humidity increases to 75%. Overall, April offers milder temperatures and a more humid atmosphere, making it a more pleasant time for outdoor activities. For more details, check out Osan weather in April.
In March, the weather in Osan tends to be quite variable, with temperatures ranging from a chilly -6°C (21°F) at night to a pleasant 21°C (70°F) during the day, averaging around 7°C (44°F). Precipitation is moderate at 47 mm (1.9 in) over about 5 days, and humidity sits at a comfortable 65%. In contrast, May ushers in warmer and more stable temperatures, with lows at 6°C (42°F) and highs reaching up to 31°C (89°F), averaging 18°C (64°F). However, May also brings increased rainfall, totaling 98 mm (3.9 in) across 8 days, and humidity rises to 81%. For a detailed look at Osan's weather in May, you can visit Osan weather in May.
March and June offer distinctly different weather patterns. In March, temperatures range from a chilly minimum of -6°C (21°F) to a pleasant maximum of 21°C (70°F), with an average of 7°C (44°F). The month experiences moderately low precipitation at 47 mm (1.9 in) over about 5 days, accompanied by a humidity level of 65%. In contrast, June warms up significantly, showcasing a minimum temperature of 12°C (53°F) and soaring to a maximum of 33°C (91°F), with an average temperature of 22°C (72°F). Precipitation increases to 80 mm (3.1 in) across approximately 7 days, and humidity rises to 85%. For more information, check out Osan weather in June.
March and July exhibit striking contrasts in weather. In March, temperatures fluctuate from a chilly minimum of -6°C (21°F) to a pleasant average of 7°C (44°F), with a maximum reaching 21°C (70°F). The month experiences moderate precipitation of 47 mm (1.9 in) over about 5 days, coupled with a humidity level of 65%. In stark contrast, July brings significantly warmer temperatures, with a minimum of 18°C (65°F), an average of 26°C (79°F), and highs soaring to 36°C (98°F). This summer month is characterized by much heavier rainfall, totaling 235 mm (9.3 in) over 14 days, and a much higher humidity at 91%. For more details on July weather, you can check Osan weather in July.
March and August display strikingly different weather patterns. In March, temperatures range from a chilly min of -6°C (21°F) to a pleasant max of 21°C (70°F), averaging around 7°C (44°F). The month experiences relatively low precipitation, with an average of 47 mm (1.9 in) over five days, accompanied by a moderate humidity level of 65%. In contrast, August is characterized by much warmer conditions, with temperatures soaring from a minimum of 16°C (61°F) to a peak of 38°C (101°F) and an average of 27°C (80°F). This summer month sees significantly higher precipitation, totaling 255 mm (10.1 in) over 14 days, and increased humidity at 91%. For more detailed insights, check out Osan weather in August.
March and September present contrasting weather characteristics. In March, temperatures range from a chilly minimum of -6°C (21°F) to a pleasant maximum of 21°C (70°F), with an average of 7°C (44°F). The month experiences approximately 47 mm (1.9 in) of precipitation over about 5 days, accompanied by a moderate humidity level of 65%. In contrast, September is significantly warmer, with temperatures starting at a low of 9°C (48°F) and peaking at a high of 31°C (88°F), averaging around 22°C (71°F). This month is also wetter, recording about 136 mm (5.4 in) of rainfall over 9 days, along with higher humidity levels at 77%. For more details, you can check Osan weather in September.
March and October exhibit distinct weather patterns that reflect the transition between winter and autumn. In March, temperatures range from a chilly minimum of -6°C (21°F) to a pleasant maximum of 21°C (70°F), resulting in an average of 7°C (44°F). This month experiences moderate precipitation of 47 mm (1.9 in) over about 5 days, accompanied by a humidity level of 65%.
In contrast, October features milder temperatures with a minimum of 1°C (33°F) and a maximum of 29°C (84°F), leading to a more comfortable average of 15°C (59°F). Precipitation increases slightly to 62 mm (2.5 in), also spread across 5 days, but the humidity rises to 79%, contributing to a more humid feel. For more detailed weather information, check out Osan weather in October.
March and November share similar maximum temperatures, both reaching up to 21°C (70°F). However, March tends to have a slightly lower average temperature of 7°C (44°F) compared to November's 8°C (46°F). Precipitation is slightly higher in November, with 54 mm (2.1 in) compared to March's 47 mm (1.9 in), although both months experience rain for about five days. Additionally, November has a higher humidity level at 80%, while March sits at 65%. For more details, you can check Osan weather in November.
In March, the weather is notably milder compared to December, with average temperatures ranging from a minimum of -6°C (21°F) to a comfortable maximum of 21°C (70°F). This month sees an average temperature of 7°C (44°F) and experiences 47 mm (1.9 in) of precipitation over about 5 days, accompanied by a moderate humidity level of 65%. In contrast, December presents a chillier climate, featuring an average temperature that hovers around 0°C (33°F), with minimum temperatures dropping as low as -14°C (8°F) and a maximum of 13°C (56°F). Precipitation in December is lower at 26 mm (1.0 in), but humidity rises to 74%, making the air feel colder. For more details on December weather in this region, check out Osan weather in December.
As March rolls in, Osan experiences a noticeable transition from winter chill to early spring warmth. The average temperature begins to rise, inviting more outdoor activities, while still holding onto some brisk days. With 47 mm of precipitation spread over just five days, the streets can be a bit wet, but the increased humidity at 65% adds a refreshing feel to the atmosphere. This month truly stands out as a time of renewal, setting the stage for the vibrant colors of spring that follow. For more detailed insights into what to expect throughout the year, visit Osan Climate.