Last updated: August 21, 2025
In March, Nagano, Japan, experiences a dynamic shift in weather, with temperatures ranging from a chilly -9°C (16°F) at night to a pleasant 21°C (70°F) during the day. The average temperature hovers around 4°C (39°F), setting the stage for the gradual transition from winter to spring. Throughout the month, residents and visitors can expect 133 mm (5.2 in) of precipitation over 18 days, leading to a notable humidity level of 81%. This combination of cool temperatures and frequent rain creates a unique and refreshing atmosphere, perfect for enjoying the region's beautiful landscapes as they begin to awaken from winter's embrace.
As March rolls into Nagano, Japan, a noticeable transformation in temperatures heralds the arrival of spring. The month begins with a minimum of -9°C (16°F), providing a brisk welcome, but quickly progresses to a more comfortable average of 4°C (39°F). By the end of the month, afternoon highs can reach up to 21°C (70°F), showcasing a remarkable shift from the deep chill of winter. This upward trend not only invites locals and tourists alike to enjoy the softening landscape but also signals the melting of snow, making way for lush greenery. March in Nagano is truly a month of transition, where the lingering cold embraces the warming sun, creating a vibrant atmosphere filled with the promise of spring.
In March, Nagano experiences a moderate precipitation of 133 mm (5.2 in), with rain falling on 18 days of the month. This marks a slight decrease from the wetter conditions of January and February, yet the spring season brings an invigorating freshness to the landscape. As temperatures begin to rise, the precipitation levels tapers off, paving the way for April, which sees a modest increase to 141 mm (5.5 in) despite only 16 rainy days. This trend indicates the transition from the cold winter months toward the milder, moisture-rich spring, setting the stage for the vibrant greenery that follows in the coming months.
In March, Nagano experiences a noticeable shift in humidity levels, dropping to 81% from the higher percentages of winter months like January's 88% and February's 86%. This decline heralds the approach of spring, as the air becomes slightly less damp, paving the way for warming temperatures. As the seasons transition, April continues this trend with a further decrease to 78%, before humidity begins to rise again in May, returning to 81%. Overall, March marks a pivotal moment in Nagano's humidity cycle, bridging the gap between the chilly winter and the balmy spring.
March in Nagano, Japan, marks a significant leap in UV exposure, with the UV Index soaring to 9, categorizing the risk as very high. This sharp increase from February’s UV Index of 6 highlights the transition to spring, where outdoor enthusiasts need to take extra precautions, as the burn time drops to just 15 minutes. Comparatively, both January and February reflected moderate to high exposure levels, but March signals a clear trend toward increasingly intense sunlight, a precursor to the extreme levels of May and June. Understanding these shifts in UV Index is essential for safe outdoor activities during this time. For more detailed information, check out the Nagano UV Index.
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As winter gives way to spring, March in Nagano, Japan emerges as a month of abundant sunshine, boasting an impressive 261 hours of bright daylight. This represents a noticeable increase from the 224 hours in February, reflecting the gradual warming trends typical of the season. The arrival of March signals the transition to longer days, laying the groundwork for April's peak of 279 hours. This upward trajectory continues from the sunnier spring months into the early summer, showcasing Nagano's vibrant natural landscape and inviting residents and visitors alike to enjoy the blossoming scenery. With each passing month, the sun’s embrace strengthens, heralding the approach of a warm and lively season ahead.
In Nagano, Japan, the likelihood of sunny weather in March reflects a transitional moment as winter wanes, offering a 32% chance of sunshine. This metric sits comfortably between the higher probabilities of April, which enjoys 43% sunshine, and February's more promising 39%. Interestingly, March marks a distinct shift from the deeper winter months, hinting at the anticipation of spring while still carrying the last vestiges of cold. However, it’s essential to note that this period is marked by variability, as the chance of sunny days fluctuates markedly from the surrounding months. Overall, March presents a balanced opportunity for sun-seekers, suggesting that while conditions may be less predictable, the spirit of spring is just around the corner.
As March arrives in Nagano, Japan, the days begin to grow noticeably longer, heralding the arrival of spring. With 11 hours of daylight, this month marks a significant shift from the shorter winter days of January and February, which offered just 9 and 10 hours, respectively. The increasing daylight not only enhances the beauty of early blooms but also encourages outdoor activities as residents eagerly embrace the mild temperatures. The trend of lengthening days will continue into April and May, peaking at 14 hours in late spring, creating a vibrant atmosphere that invites exploration and connection with nature. As the month progresses, the anticipation of longer, sunnier days amplifies a sense of renewal and energy throughout Nagano.
As March sweeps into Nagano, Japan, the wind begins to hint at the promise of spring, suggesting a subtle shift in the seasons. With an average wind speed of 2.0 m/s (5 mph), March marks a gentle uptick compared to the more tranquil 1.9 m/s (4 mph) seen in January and February. This increase not only reflects the changing weather but also signals the gradual warming that will continue into April, where winds reach 2.1 m/s (5 mph). Interestingly, as the year progresses into the summer months, wind speeds tend to decrease, highlighting a seasonal trend where the brisk March winds give way to calmer days. This delightful transition sets the stage for the vibrant life that blossoms in Nagano as the cherry blossoms begin to bloom.
Weather in Nagano varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Nagano, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between March and January, we can observe notable differences in temperature and conditions. March experiences milder temperatures, with a minimum of -9°C (16°F) and an average of 4°C (39°F), compared to January's colder minimum of -15°C (6°F) and an average of -2°C (29°F). While January has a maximum of 10°C (51°F), March allows for considerably warmer highs, reaching up to 21°C (70°F). Precipitation is slightly higher in January at 144 mm (5.7 in) over 21 days versus March's 133 mm (5.2 in) over 18 days. Additionally, January has a higher humidity level at 88%, compared to March's 81%. For more details on January weather in Nagano, check Nagano weather in January.
In comparing the weather between February and March, March generally presents a milder climate. With average temperatures rising from -1°C (30°F) in February to 4°C (39°F) in March, the transition toward spring becomes apparent, despite March's low of -9°C (16°F) being slightly warmer than February’s low of -14°C (7°F). Precipitation levels are comparable, with March recording 133 mm (5.2 in) over 18 days, while February sees 129 mm (5.1 in) over 19 days. The humidity also decreases slightly from February's 86% to March's 81%, contributing to a more comfortable atmosphere as winter gives way to early spring. For more details on February weather, visit Nagano weather in February.
March and April exhibit noticeable changes in weather as spring progresses. March typically sees a wider range of temperatures, with minimums dropping to -9°C (16°F) and maximums reaching up to 21°C (70°F), accompanied by significant precipitation totaling 133 mm (5.2 in) over 18 days and an average humidity of 81%. In contrast, April brings milder conditions with a minimum of -5°C (22°F) and a maximum that can reach 27°C (81°F), while precipitation increases slightly to 141 mm (5.5 in) over 16 days, with humidity easing to 78%. For a detailed overview of conditions in April, you can check Nagano weather in April.
March and May present distinct weather patterns that highlight the transition from early spring to late spring. In March, temperatures range from a chilly minimum of -9°C (16°F) to a pleasant maximum of 21°C (70°F), with an average of 4°C (39°F). The month experiences considerable precipitation, totaling 133 mm (5.2 in) over 18 days, while humidity remains high at 81%.
In contrast, May offers a much warmer climate, with minimum temperatures starting at 0°C (33°F) and soaring up to a maximum of 31°C (88°F), averaging at 15°C (59°F). Rainfall increases slightly to 160 mm (6.3 in) but occurs over fewer days, just 16, while maintaining the same humidity level of 81%. Those looking to explore how weather influences activities should check Nagano weather in May for more insights.
March weather is characterized by its chilly temperatures, with a minimum of -9°C (16°F) and an average of just 4°C (39°F), while the maximum can reach up to 21°C (70°F). The month sees significant precipitation of 133 mm (5.2 in) over 18 days, with a humidity level of 81%. In contrast, June brings a much warmer climate, where temperatures rise significantly with a minimum of 5°C (41°F) and an average of 18°C (65°F), peaking at a maximum of 30°C (87°F). Although June has a higher total precipitation of 171 mm (6.7 in) spread across the same number of rainy days, the humidity increases slightly to 88%. For more detailed information on June weather, visit Nagano weather in June.
March and July present dramatically different weather experiences. In March, temperatures can range from a chilly -9°C (16°F) at their lowest to a pleasant 21°C (70°F) at their highest, with an average of around 4°C (39°F). This month sees significant precipitation, totaling 133 mm (5.2 in) over 18 days, alongside a humidity level of 81%. In contrast, July is considerably warmer, with minimum temperatures of 15°C (60°F) and maximums reaching up to 33°C (91°F), averaging around 22°C (73°F). Rainfall during this month is also higher, amounting to 341 mm (13.4 in) across 25 days, and humidity spikes to 92%. For a more detailed look at July weather, visit Nagano weather in July.
March and August present markedly different weather conditions. In March, temperatures range from a brisk minimum of -9°C (16°F) to a moderate maximum of 21°C (70°F), with an average of 4°C (39°F). The month experiences 133 mm (5.2 in) of precipitation over 18 days, accompanied by a humidity level of 81%. In contrast, August boasts much warmer temperatures, with a minimum of 11°C (52°F) and a peak of 35°C (95°F), resulting in an average temperature of 24°C (75°F). The summer month receives more rainfall, totaling 198 mm (7.8 in) over 23 days, and humidity increases to 92%. For more details on August weather, check out Nagano weather in August.
March and September present notable differences in weather conditions. In March, temperatures range from a chilly minimum of -9°C (16°F) to a pleasant maximum of 21°C (70°F), with an average temperature of around 4°C (39°F). This month experiences significant rainfall, totaling 133 mm (5.2 in) over 18 days, accompanied by high humidity levels of 81%. In contrast, September brings milder, warmer conditions, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 32°C (89°F) and an average of 19°C (67°F). Precipitation increases to 194 mm (7.6 in) over a similar number of days, 19, alongside even higher humidity at 89%. For further information on September weather, you can visit Nagano weather in September.
March and October present contrasting weather profiles, with March experiencing a minimum temperature of -9°C (16°F) and an average of 4°C (39°F), while October sees milder conditions with a minimum of 2°C (36°F) and an average of 13°C (56°F). In terms of precipitation, October is significantly wetter, receiving 217 mm (8.5 in) over 18 days, compared to March's 133 mm (5.2 in) also spread over 18 days. Additionally, October tends to be slightly more humid with an average humidity of 87% compared to March's 81%. For a more detailed look at October weather in Nagano, visit Nagano weather in October.
March and November feature somewhat similar temperature ranges, with averages of 4°C (39°F) and 7°C (44°F) respectively, though March often sees slightly colder minimum temperatures. Both months can reach a maximum of 21°C (70°F), but March typically has more precipitation, averaging 133 mm (5.2 in) over 18 days compared to November's 94 mm (3.7 in) over 15 days. Humidity levels are also comparable, with November slightly higher at 85% compared to March's 81%. For more details on November weather in Nagano, you can visit Nagano weather in November.
March and December weather exhibit some striking similarities and differences. In March, temperatures vary from a minimum of -9°C (16°F) to a maximum of 21°C (70°F), resulting in an average temperature of 4°C (39°F). The month sees approximately 133 mm (5.2 in) of precipitation over 18 days, with humidity at 81%. In contrast, December experiences slightly colder conditions, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 19°C (66°F), and an average of 1°C (34°F). Moreover, December tends to be wetter, receiving 151 mm (6.0 in) of precipitation over 20 days and a higher humidity level at 86%. For a more detailed look at December weather, check out Nagano weather in December.
As winter begins to retreat, March in Nagano transforms into a month of transition, marked by shifting temperatures and increased precipitation. Unlike the colder, harsher months preceding it, March offers a glimpse of milder days, where maximum temperatures reach a pleasant 21°C (70°F), but the average remains cool at 4°C (39°F). The atmosphere is often humid, with an average of 81%, combined with frequent rainy days totaling 18, which can catch visitors off guard. This blend of cool air and moisture sets the stage for the early blooms of spring, inviting travelers to enjoy the budding landscapes. For a deeper understanding of what weather to expect throughout the year, visit Nagano Climate.