March Weather in Incheon, South Korea

Last updated: October 30, 2025

In March, Incheon, South Korea experiences a gradual shift towards spring, with daytime temperatures peaking at a maximum of 19°C (66°F) and an average of 6°C (44°F). Nighttime brings a chill, with lows dropping to -6°C (21°F). The month records an average precipitation of 44 mm (1.7 in) over approximately 5 days, contributing to a humidity level of around 65%. This blend of cool temperatures and occasional rain highlights the transition into a more vibrant season, making it a unique time to explore the evolving landscapes of Incheon.

March Temperature in Incheon

As March unfolds in Incheon, South Korea, the city begins to shake off the winter chill, with temperatures gradually warming up. The monthly average temperature climbs to a mild 6°C (44°F), reflecting a significant shift from the depths of winter. The minimum temperature rises to a cool -6°C (21°F), making way for more comfortable days as the maximum hits a pleasant 19°C (66°F). This transition not only heralds the arrival of spring but also encourages residents and visitors alike to embrace outdoor activities and enjoy the beautiful blooming scenery. As winter retreats, March serves as a gentle reminder of the vibrant warmth awaiting in the months to come.

March Weather in Incheon: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Incheon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Incheon, March typically has an average temperature of 6°C (44°F), with highs reaching up to 19°C (66°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec293244546371788071594632
Data source: Temperature data for Incheon generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Incheon

March marks a noticeable transition in precipitation patterns in Incheon, South Korea, as the monthly rainfall rises sharply to 44 mm (1.7 in) over 5 days, paving the way for the heavier rains of spring. This increase represents nearly double the precipitation recorded in the previous month, hinting at nature's awakening after winter. The consistent uptick from January to March lays a foundation for what lies ahead, with April predicted to bring even more rain at 49 mm (1.9 in). As the days lengthen and temperatures warm, residents can expect not only more rain but also a burgeoning landscape, reinforcing the connection between seasonal change and increased precipitation in this vibrant coastal city.

March Precipitation Trends in Incheon

The chart displays monthly precipitation patterns in Incheon, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Incheon, March typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1721444910777232256133595324
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Incheon

As March unfolds in Incheon, South Korea, the humidity remains steady at 65%, mirroring February's level and providing a refreshing reprieve before the spring warmth sets in. This consistency hints at the transitional nature of the season, where the air begins to feel crisper but not yet heavy. Following March, humidity levels are expected to climb, peaking in the summer months of July and August at a muggy 91%. This gradual increase is a prelude to the more humid and vibrant spring and summer seasons, contrasting with the cooler, drier conditions of winter, which starts at a high 71% in January and tapers down. March effectively acts as a bridge between the lingering chill of winter and the lush embrace of spring, making it an ideal time to enjoy the evolving climate.

March Average Humidity in Incheon

This chart illustrates the average monthly humidity levels in Incheon, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Incheon is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%65%65%75%81%85%91%91%77%79%80%74%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Incheon

As we transition into March in Incheon, South Korea, the UV Index climbs to 6, marking a shift to the high exposure category. This change indicates that sun protection becomes increasingly important, with a reduced burn time of just 25 minutes. The trend reveals a significant uptick from the moderate indices of the earlier months, where January and February's UV levels hovered around 3 and 4, respectively. As daylight increases, so too does the need for vigilance against UV rays, paving the way for even higher indices in the following months, such as 8 in April and 9 in May. Being aware of this changing landscape is essential for outdoor enthusiasts and sunbathers alike—stay informed with the latest updates on the Incheon UV Index to protect your skin as the sun’s intensity intensifies.

Maximum UV Index Levels in Incheon for March

The chart shows the monthly maximum UV Index (UVI) for Incheon in March, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In March, the maximum UV index in Incheon typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891011119643
Data source: Incheon March UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

March Sunshine in Incheon

March brings a delightful surge of sunshine to Incheon, South Korea, with 282 hours of bright daylight, a welcome increase from February's 242 hours. This transition marks the beginning of a radiant season, as daylight hours steadily climb towards summer, highlighted by an even more cheerful April, which enjoys 287 hours. The trend of increasing sunlight continues through the spring months, peaking in May with 311 hours, showcasing nature's vibrant awakening. It's a time when Incheon basks in a growing warmth and light, inviting locals and visitors alike to step outside and embrace the beauty of the emerging season.

Monthly Sunshine Duration in Incheon: March Highlighted

The March sunshine duration represents the total number of hours Incheon experiences direct sunlight during the month of March, excluding cloudy or obstructed periods. This chart compares the sunshine duration of March with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec199h242h282h287h311h317h294h289h262h263h231h235h
Data source: Incheon March Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Incheon During March

As March rolls in, Incheon, South Korea, experiences a notable dip in sunny weather, with only a 44% chance of sunshine. This marks a decrease from the preceding months of January and February, which enjoy sunnier skies at 52% and 55%, respectively. The trend continues as we transition into spring, with April and May showing similar probabilities of 45% and 39%. While the chance of sun fluctuates throughout the year, March serves as a reminder that spring is still finding its footing, leading to more variable weather as the sunny days gradually reemerge.

Percentage of Sunny Days in March in Incheon

The chart illustrates the percentage of sunny days in Incheon throughout the year, with March highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Incheon experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec52%55%44%45%39%39%32%33%42%46%61%63%
Data source: Incheon March chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Incheon in March

In March, Incheon, South Korea, begins to embrace the full promise of spring with an increase in daylight duration, stretching to 11 hours. This change marks a gradual transition from the shorter winter days of January and February, which offer just 9 and 10 hours of sunlight, respectively. As the month progresses, the extra hours of sunlight inject a vibrant energy into the atmosphere, encouraging outdoor activities and a sense of renewal. Looking ahead, daylight will steadily expand to 13 hours in April and peak at 14 hours during the summer months of May through July, illustrating a clear upward trend that not only enhances the daily rhythm but also enriches the cultural tapestry of the city as residents and visitors alike bask in the sun’s glow.

Average Daylight Hours in Incheon for March

The chart illustrates the variation in daylight duration in Incheon throughout the year, with March highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 53m10h 47m11h 57m13h 9m14h 10m14h 41m14h 25m13h 32m12h 23m11h 11m10h 9m9h 36m
Data source: Incheon daylight hours, calculated by summing the hours between sunrise and sunset for each day.

March Winds in Incheon

March in Incheon, South Korea, ushers in a slight breeze with an average wind speed of 2.9 m/s (7 mph), marking a gentle transition from the winter chill. Notably, this is the lowest wind speed recorded in the first quarter of the year, following a slight increase from January's 3.4 m/s and February’s 3.7 m/s. As spring approaches, the winds tend to soften, creating a calm atmosphere that complements the blossoming landscape. This trend continues into April and May, where average speeds hover around 3.2 m/s and 3.3 m/s, respectively, before gradually rising again in the late autumn months. The overall pattern reflects a rhythmic ebb and flow of the winds, echoing the changing seasons and inviting both locals and visitors to relish in the refreshing air of this vibrant coastal city.

Average March Wind Speed in Incheon

The chart displays monthly wind speed patterns in Incheon, with values for each month shown alongside March's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how March's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.43.72.9 m/s3.23.32.52.32.63.02.83.13.4
Data source: Incheon March wind data, generated using information from the Copernicus Climate Change Service.

How March Weather in Incheon Compares to Other Months

Weather in Incheon varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Incheon, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather of March and January, March presents a considerable warming trend. With temperatures ranging from a minimum of -6°C (21°F) to a maximum of 19°C (66°F), March averages a mild 6°C (44°F). In contrast, January is noticeably colder, featuring a minimum of -16°C (3°F) and a maximum of 12°C (54°F), with an average temperature of -2°C (29°F). Additionally, March sees more precipitation, with 44 mm (1.7 in) recorded over five days, compared to January's 17 mm (0.7 in) over just two days. January's higher humidity at 71% also accentuates its chill compared to March's 65%. For more details, you can check Incheon weather in January.

In comparing the weather conditions of March and February, March generally presents milder temperatures, with average highs reaching up to 19°C (66°F) compared to February's maximum of 15°C (59°F). The minimum temperature in March is also notably warmer at -6°C (21°F), whereas February can dip to -14°C (6°F). Additionally, March experiences increased precipitation levels, totaling 44 mm (1.7 in) over five days, compared to February's 21 mm (0.8 in) across four days. Both months share the same humidity level of 65%, indicating a consistent moisture level in the air. For more detailed weather information, visit Incheon weather in February.

March weather is characterized by cooler temperatures, with a minimum of -6°C (21°F) and an average of 6°C (44°F), peaking at 19°C (66°F). The month sees relatively moderate precipitation of 44 mm (1.7 in) spread over 5 days, accompanied by a humidity level of 65%. In contrast, April ushers in noticeably warmer conditions, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 25°C (78°F) and an average of 12°C (54°F). The precipitation increases slightly to 49 mm (1.9 in) over 6 days, and humidity rises to 75%. Overall, April offers a more temperate and slightly wetter climate than March. For more details, check out Incheon weather in April.

March and May present contrasting weather patterns. In March, temperatures range from a chilly minimum of -6°C (21°F) to a mild maximum of 19°C (66°F), with an average of 6°C (44°F). The month sees about 44 mm (1.7 in) of precipitation spread over five days, accompanied by a humidity level of 65%. In stark contrast, May boasts warmer temperatures, with a minimum of 7°C (44°F) and a maximum reaching 28°C (82°F), averaging 17°C (63°F). The precipitation in May increases significantly to 107 mm (4.2 in), occurring over eight days, along with a higher humidity level of 81%. For a detailed look at May weather, visit Incheon weather in May.

March weather features a notable chill, with temperatures ranging from a brisk -6°C (21°F) to a mild max of 19°C (66°F). The average temperature hovers around 6°C (44°F), accompanied by moderate precipitation of 44 mm (1.7 in) over about 5 days and a humidity level of 65%. In contrast, June offers a significant warmup, with temperatures soaring from a minimum of 14°C (57°F) to a high of 31°C (88°F) and an average of 22°C (71°F). Rainfall increases to 77 mm (3.0 in) spread over 9 days, with humidity rising to 85%, creating a more humid and vibrant atmosphere. For more details, visit Incheon weather in June.

March and July present strikingly different weather patterns. In March, temperatures range from a chilly minimum of -6°C (21°F) to a comfortable maximum of 19°C (66°F), with an average of 6°C (44°F). Precipitation is relatively low at 44 mm (1.7 in) over just 5 days, and humidity sits at a moderate 65%. In contrast, July boasts much warmer temperatures, with a minimum of 19°C (66°F) and a peak of 35°C (95°F), averaging 26°C (78°F). Rain is much more frequent in July, with 232 mm (9.1 in) of rainfall over 14 days and significantly higher humidity at 91%. For more detailed information about July weather, visit Incheon weather in July.

March and August present stark contrasts in weather conditions. In March, temperatures range from a chilly -6°C (21°F) at night to a mild 19°C (66°F) during the day, with an average of 6°C (44°F). Precipitation is relatively low at 44 mm (1.7 in) over about 5 days, and humidity hovers around 65%. In contrast, August brings significantly warmer weather, with nighttime temperatures never dropping below 17°C (63°F) and daytime highs soaring up to 36°C (97°F), averaging around 27°C (80°F). The month is also much wetter, recording 256 mm (10.1 in) of rain over 15 days, accompanied by a high humidity level of 91%. For more details, you can explore Incheon weather in August.

March and September showcase distinct contrasts in weather patterns. In March, temperatures begin to rise from a chilly minimum of -6°C (21°F), averaging around 6°C (44°F) and peaking at 19°C (66°F). The month experiences moderate precipitation totaling 44 mm (1.7 in) over approximately 5 days, with humidity levels around 65%. In contrast, September brings much warmer conditions, with minimum temperatures starting at 11°C (53°F) and averaging 22°C (72°F), reaching a maximum of 31°C (87°F). This month is wetter, receiving 133 mm (5.2 in) of rain across about 9 days, and higher humidity levels at 77%. For a more detailed look at September's climate, visit Incheon weather in September.

In comparing the weather between March and October, we see notable differences. March starts with colder temperatures, ranging from a minimum of -6°C (21°F) to an average of 6°C (44°F), peaking at 19°C (66°F). It experiences about 44 mm (1.7 in) of precipitation over 5 days, along with a humidity level of 65%. In contrast, October enjoys milder conditions with minimum temperatures around 2°C (36°F) and an average of 15°C (60°F), reaching highs of 28°C (82°F). The month receives slightly more rainfall, totaling 59 mm (2.3 in) over 6 days and higher humidity at 79%. For more details on October weather, visit Incheon weather in October.

March and November present distinct weather characteristics despite their proximity in the calendar year. In March, temperatures range from a chilly -6°C (21°F) to a mild 19°C (66°F), with an average of 6°C (44°F) and relatively lower humidity at 65%. The month typically experiences about 44 mm (1.7 in) of precipitation over five days. In contrast, November features slightly warmer temperatures, with minimums around -5°C (23°F) and maximums reaching up to 21°C (69°F), averaging 8°C (47°F). Additionally, November is more humid at 80% and sees a bit more rainfall, totaling 53 mm (2.1 in) over the same five days. For more detailed insights on November weather, you can visit Incheon weather in November.

In comparing the weather of March and December, March offers a more moderate range of temperatures, with an average of 6°C (44°F) and a maximum of 19°C (66°F). In contrast, December's average temperature hovers around 0°C (33°F), with a chilly minimum of -14°C (7°F) and a maximum of 12°C (54°F). While both months experience precipitation on about five days, March receives significantly more rainfall at 44 mm (1.7 in) compared to December's 24 mm (0.9 in). Additionally, March tends to have lower humidity at 65%, whereas December's humidity rises to 74%, contributing to the colder feel of the winter season. For more details, you can check Incheon weather in December.

Compare Incheon's Climate with Cities Worldwide

Conclusion: What to Expect From March Weather in Incheon

As March arrives in Incheon, the transition into spring becomes palpable, showcasing a delightful contrast to the winter chill experienced in previous months. While temperatures start to climb, averaging a mild 6°C with occasional highs reaching 19°C, the lingering coolness reminds us that winter is not yet entirely behind us. This month also brings about an increase in humidity, averaging around 65%, and precipitation, though manageable with only 44 mm over the course of just five days. March’s temperate yet unpredictable weather invites residents and visitors alike to embrace outdoor activities, making it an ideal time to experience the region's blossoming beauty. For more on what to expect in terms of weather throughout the year, check out Incheon Climate.