Last updated: August 21, 2025
In Koshi, Japan, March offers a delightful transition into spring, with temperatures ranging from a chilly -1°C (30°F) at night to a pleasant maximum of 24°C (75°F) during the day. The month averages around 11°C (52°F), making it an ideal time for outdoor exploration. However, expect some dampness, with 131 mm (5.2 in) of precipitation spread across 12 days, contributing to a humidity level of 71%. As nature awakens, the mix of warming temperatures and occasional rain creates a vibrant landscape ripe for discovery.
In March, Koshi, Japan begins to shake off the winter chill, with temperatures gradually warming up. The month sees a notable rise as the minimum temperature hovers around -1°C (30°F), while the average reaches a pleasant 11°C (52°F). This transition ushers in a peak of 24°C (75°F), signifying the region's emergence from the frosty grip of winter. As the days lengthen and the sun starts to shine brighter, March serves as a gentle prelude to the warmth of spring, with increasingly comfortable conditions that invigorate both nature and residents alike. This upward trend from the colder months reflects the gradual awakening of the vibrant landscapes, making it an ideal time for visitors to experience the beauty of Koshi as it transitions into spring.
March in Koshi, Japan, marks a notable transition in precipitation patterns, characterized by a significant increase compared to earlier months. With 131 mm (5.2 in) of rainfall over 12 days, March not only surpasses January's 54 mm (2.1 in) and February's 96 mm (3.8 in) but also sets the stage for the heavier precipitation that follows in the spring. The steady rise in rainfall hints at nature's awakening, as the region prepares for the lush greenery of April and May. As the days grow longer and warmer, this uptick in precipitation reflects the shift from winter's dry chill to the vibrant vitality of the season ahead, laying a foundation for the substantial rains of summer that will follow.
In March, humidity in Koshi, Japan remains steady at 71%, mirroring the previous month’s reading. This consistency marks a transitional period before the climate shifts toward the more humid months ahead. Following March, we see a significant uptick, with humidity rising sharply to 78% in April and escalating to 84% by May. The trend indicates a clear pattern as the region moves into summer: the air becomes progressively more humid, peaking at 92% in July. This gradual transition serves as a precursor to the sweltering summer months, where the lush landscapes of Koshi thrive amidst increasingly damp conditions.
As March unfolds in Koshi, Japan, residents and visitors should be prepared for a notable increase in UV exposure, with the UV Index soaring to 8, categorizing it as very high. This marks a striking jump from February’s high level of 6, reflecting the gradual intensification of sunlight as spring approaches. With a burn time of just 15 minutes, it's essential to take precautions such as applying sunscreen and wearing protective clothing to safeguard against skin damage. This trend of rising UV Index values will continue into April, where it escalates further to an extreme level of 11. For more detailed information on UV levels throughout the year, check out Koshi UV Index.
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March brings an invigorating 259 hours of sunshine to Koshi, Japan, marking a vibrant transition toward spring. This increase from February's 232 hours sets the stage for a steady upward trend in daylight as the months progress. With April shining even brighter at 277 hours and May peaking at 283 hours, it's clear that the region eagerly welcomes longer, sunnier days. The pattern continues into the summer months, where the sunshine hits its zenith in August with a remarkable 294 hours, before gradually tapering off in the fall. This delightful progression not only heralds the arrival of blooming landscapes but also invites the outdoors, making March a noteworthy month of renewal and warmth in the heart of Koshi.
In Koshi, Japan, the likelihood of sunny weather takes a dip in March, with only a 37% chance of sunshine. This marks a notable decrease from the previous months, reflecting a transition as winter fades and spring approaches. While January and February enjoy sunnier days at 41% and 44%, respectively, March introduces a hint of unpredictability in the weather. Interestingly, the chances of sun start to rebound in April at 43%, suggesting that while March may feel a bit cloudy, the skies are likely to brighten as spring unfolds. Overall, the trend indicates a gradual shift toward sunnier prospects as the year progresses, culminating in a much brighter October at 64%.
As March arrives in Koshi, Japan, the length of daylight begins to noticeably increase, with 11 hours of sunlight illuminating the days compared to the stable 10 hours in the preceding months of January and February. This gradual extension of daylight marks the transition from winter's hold to the vibrancy of spring, setting the stage for even more sunlight in April with 12 hours and May, when daylight reaches a generous 13 hours. As the months progress toward summer, daylight peaks at 14 hours in both June and July, before gently tapering off again in the fall. This dynamic shift not only influences the rhythm of daily life but also heralds the blooming of nature, inviting both residents and visitors to embrace the longer, brighter days ahead.
In March, the winds in Koshi, Japan begin to shift as the season transitions toward spring. With an average wind speed of 2.4 m/s (5 mph), March experiences a slight dip from February's 2.8 m/s. This pattern hints at a gentle calming as the colder months recede, preserving the mild breezes that characterize Koshi's climate. As we move into April with a return to 2.5 m/s, the winds remain steady, creating an inviting atmosphere for outdoor adventures and blooming flora alike. Thus, March serves as a pivotal moment, bridging the briskness of winter and the warmth of spring, while the consistently mild winds invite new beginnings in the picturesque landscape of Koshi.
Weather in Koshi varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Koshi, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between March and January, significant differences in temperature and precipitation can be observed. March enjoys a wider temperature range, with a minimum of -1°C (30°F), an average of 11°C (52°F), and a maximum of 24°C (75°F), making it significantly warmer than January, which has minimum temperatures dropping to -5°C (24°F) and a maximum of only 17°C (63°F). Additionally, March experiences higher precipitation levels, totaling 131 mm (5.2 in) over 12 days, compared to January's 54 mm (2.1 in) spread over just 6 days. The humidity remains relatively similar in both months, with March at 71% and January at 75%. For more detailed insights, you can check the weather specifics for January Koshi weather in January.
In comparing the weather of March and February, we see a noticeable warming trend. March features a minimum temperature of -1°C (30°F) and an average of 11°C (52°F), soaring to a maximum of 24°C (75°F), while February starts colder with minimums at -5°C (24°F) and an average of 7°C (44°F). Precipitation also increases slightly from February's 96 mm (3.8 in) over 10 days to March's 131 mm (5.2 in) over 12 days, yet both months share the same humidity level of 71%. For those interested in February's specific conditions, you can learn more here: Koshi weather in February.
March and April exhibit notable differences in weather patterns. March typically starts off cooler, with temperatures ranging from -1°C (30°F) to a maximum of 24°C (75°F), leading to an average of 11°C (52°F). This month also experiences higher precipitation over 12 days, totaling 131 mm (5.2 in) and a humidity level of 71%. In contrast, April sees a slight uptick in warmth, with minimum and maximum temperatures hovering between 1°C (34°F) and 28°C (82°F), resulting in a comfortable average of 15°C (59°F). Additionally, precipitation remains similar at 132 mm (5.2 in) but occurs over just 9 days, contributing to a higher humidity level of 78%. For more detailed information, you may refer to Koshi weather in April.
March and May exhibit notable differences in weather characteristics. In March, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable maximum of 24°C (75°F), with an average temperature of 11°C (52°F). Precipitation in March totals 131 mm (5.2 in) over 12 days, accompanied by a relative humidity of 71%. In contrast, May brings warmer conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 30°C (86°F), while the average rises to 19°C (67°F). While May experiences more rainfall, accumulating 213 mm (8.4 in) over the same 12 days, it has a higher humidity level of 84%, contributing to a more tropical feel. For a deeper look into the weather trends of May, you can check Koshi weather in May.
In March, the weather is still quite cool, with temperatures ranging from a chilly min of -1°C (30°F) to a comfortable max of 24°C (75°F) and averaging around 11°C (52°F). The month experiences relatively high humidity at 71% and sees about 131 mm (5.2 in) of precipitation over 12 days. In contrast, June brings warmer conditions with temperatures ranging from a minimum of 13°C (55°F) to a sweltering maximum of 32°C (89°F), averaging 23°C (73°F). The humidity rises significantly to 86%, and June records an even higher precipitation total of 274 mm (10.8 in) over 15 days. For more detailed information on June weather, check out this link: Koshi weather in June.
March and July present stark contrasts in weather conditions. In March, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable average of 11°C (52°F), peaking at a mild 24°C (75°F). Despite manageable conditions, March experiences significant precipitation of 131 mm (5.2 in) over approximately 12 days, coupled with a humidity level of 71%. In contrast, July is considerably warmer, with temperatures starting at a minimum of 17°C (63°F) and averaging 26°C (79°F), reaching a maximum of 35°C (96°F). However, this warmth comes with heavy rainfall, totaling 478 mm (18.8 in) across 20 days and high humidity at 92%. For more specific details about July weather, you can check out this link: Koshi weather in July.
March and August present distinctly different weather patterns. In March, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 24°C (75°F), with an average of 11°C (52°F). This month experiences moderate precipitation with about 131 mm (5.2 in) spread over 12 days, resulting in a humidity level of 71%. In contrast, August brings warmth and humidity to the forefront, characterized by a minimum temperature of 18°C (65°F) and a maximum of 35°C (96°F), with an average temperature of 28°C (82°F). Precipitation in August is heavier at 277 mm (10.9 in), occurring over 15 days, and the humidity increases significantly to 91%. For more details on the weather in August, you can visit Koshi weather in August.
March and September experience distinct weather patterns, reflecting the transition from early spring to autumn. In March, temperatures range from a chilly -1°C (30°F) at night to a mild average of 11°C (52°F) during the day, peaking at 24°C (75°F), while September sees much warmer conditions, with nighttime lows of 12°C (53°F) and daytime averages reaching 24°C (76°F) and highs up to 34°C (94°F).
Precipitation is also more pronounced in September, with a total of 184 mm (7.2 in) spread over 14 days, compared to March’s 131 mm (5.2 in) over 12 days. Additionally, September tends to be more humid, recorded at 84%, compared to March's 71%. For more detailed insights, you can check Koshi weather in September.
March and October present quite distinct weather patterns. In March, temperatures can range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 24°C (75°F), with an average of 11°C (52°F). The month is marked by higher precipitation—131 mm (5.2 in) over 12 days—coupled with a humidity level of 71%. In contrast, October offers milder conditions with a minimum temperature of 6°C (44°F) and a warm average of 19°C (66°F), peaking at a maximum of 31°C (88°F). Rainfall in October is lower, totaling 107 mm (4.2 in) over just 8 days, but the humidity rises to 83%. For a more detailed look at weather specifics, you can refer to Koshi weather in October.
March and November exhibit similarities and differences in weather patterns. Both months experience a minimum temperature of -1°C (30°F), but March has a slightly lower average temperature of 11°C (52°F) compared to November's average of 12°C (55°F). Interestingly, the maximum temperatures are quite comparable, reaching 24°C (75°F) in March and 25°C (77°F) in November. Precipitation levels also differ significantly, with March receiving 131 mm (5.2 in) over 12 days, while November sees less rain, totaling 60 mm (2.4 in) over just 7 days. Additionally, humidity is higher in November, at 81% compared to March’s 71%. For more details on November weather, you can check Koshi weather in November.
March and December exhibit notable differences in weather patterns. In March, temperatures range from a minimum of -1°C (30°F) to a maximum of 24°C (75°F), with an average of 11°C (52°F). The month experiences a higher level of precipitation, totaling 131 mm (5.2 in) over approximately 12 days, contributing to a humidity level of 71%. In contrast, December sees slightly colder temperatures, with a minimum of -2°C (29°F) and a maximum of 22°C (72°F), averaging around 7°C (45°F). It has significantly less rainfall, with 71 mm (2.8 in) over just 7 days, and higher humidity at 79%. For further details on December weather in a specific region, you can check the link Koshi weather in December.
As March unfolds in Koshi, the weather begins to transition, offering a refreshing reprieve from winter's chill. With average temperatures rising and reaching a pleasant maximum of 24°C (75°F), the atmosphere becomes increasingly inviting compared to preceding months. However, the lingering cold still presents itself with chilly nights and occasional frosts. Despite the rise in warmth, occasional rain showers remind residents of the need for a sturdy umbrella, as precipitation falls on nearly half the days of the month. Coupled with a relatively high humidity level, March serves as a bridging month, hinting at the warmth of spring while still showcasing the tail end of winter's grip. For a deeper understanding of the climate patterns throughout the year, explore Koshi Climate.