Last updated: August 21, 2025
April in Suwa, Japan brings a delightful mix of spring weather, showcasing a maximum temperature reaching a pleasant 26°C (78°F) and dipping to a minimum of -6°C (21°F). The average temperature hovers around a comfortable 9°C (48°F), making it an ideal time for outdoor activities. With precipitation totaling 143 mm (5.6 in) over 13 days, those venturing outside should be mindful of occasional rain showers. The air is characterized by a humidity level of 74%, adding a refreshing feel to the vibrant landscapes as they awaken from winter’s slumber. Overall, April in Suwa invites both locals and visitors to experience the beauty of nature in full bloom.
As April unfolds in Suwa, Japan, the weather experiences a noticeable shift, heralding the arrival of spring. With minimum temperatures averaging around -6°C (21°F) and maximums reaching up to 26°C (78°F), the transition is both refreshing and invigorating. This month sees the average temperature rise to 9°C (48°F), a significant increase from March's 4°C (40°F), reflecting the melting of winter's chill. As blossoms begin to bloom, the warming trend continues, promising longer days and the outdoor adventures that accompany milder climates. April's fluctuating temperatures embody a vibrant blend of cool breezes and the sun's growing warmth, making it a delightful period for residents and visitors alike to embrace the beauty of nature awakening.
In April, Suwa, Japan, experiences a notable increase in precipitation, with 143 mm (5.6 in) of rainfall spread over 13 days. This marks a slight rise from March's total of 141 mm but aligns with the spring season's character as nature awakens after winter. As temperatures rise and flowers begin to bloom, the increased rainfall contributes to the region's lush landscapes. Notably, this month's precipitation is part of a trend of escalating totals leading into May, which averages 155 mm (6.1 in)—suggesting that April's showers pave the way for the more abundant rains of early summer. The steady frequency of rainfall days during this period underscores the consistent, nurturing moisture that supports Suwa's vibrant ecosystem.
In April, Suwa, Japan experiences a notable rise in humidity, reaching 74%, consistent with the transitional nature of spring. This slight uptick from March's 70% marks the beginning of a trend towards higher moisture levels, which continues into the warmer months. It serves as a prelude to the more humid conditions of May, when humidity spikes to 81% and sets the stage for the summer's peak, culminating in a high of 93% in July. As the seasons shift, April's humidity reflects nature's awakening, gradually paving the way for the lush greenery that follows in the vibrant spring and summer months.
In April, Suwa, Japan experiences a significant spike in the UV Index, reaching 10—a level categorized as very high. This increase signifies a shift from March’s UV Index of 9 and suggests that outdoor enthusiasts should exercise caution as the burn time decreases to just 15 minutes. The trend continues upward, pointing towards the extreme levels expected in May and June, where the UV Index reaches an alarming high of 11. As spring transitions to summer, it’s essential for residents and visitors to be mindful of sun exposure, particularly during these peak months. For more detailed information, check out the Suwa UV Index.
UV Risk Categories
April in Suwa, Japan, welcomes longer days and a bounty of sunshine, boasting 284 hours of bright, cheerful light—a delightful increase from the preceding months. As winter fades, the transition is marked by a steady rise in sunlight, starting at only 189 hours in January and gradually climbing throughout the spring. March, with 268 hours, sets the stage for April's radiant stretch, while May takes the lead with 292 hours, promising even more daylight. This upward trend showcases Suwa's blossoming embrace of spring, where longer afternoons invite outdoor adventures and invigorating strolls beneath the clear blue skies.
As April rolls into Suwa, Japan, the likelihood of enjoying sunny weather remains fairly promising at 45%. This marks a slight improvement from the previous months, particularly when compared to March's 41% and showcases a notable contrast to the upcoming May, where the chance drops to just 24%. This trend suggests that April is one of the better months for sunlight in Suwa, nestled between the still-chilly winter and the more overcast summer months. As nature awakens in spring, residents and visitors alike can expect a delightful balance of bright, sunny days, making it an ideal time to explore the region's picturesque landscapes.
As April unfolds in Suwa, Japan, the increase in daylight becomes a true herald of spring, with 13 hours of sunlight gracing the city. This is a notable jump from March's 11 hours, effectively illuminating the blossoming landscape and inviting residents outdoors. The upward trend in daylight hours continues into May, reaching 14 hours, establishing a pattern that emphasizes the longer, sun-drenched days of the season. This gradual but steady lengthening of daylight not only enhances outdoor activities but also cultivates a vibrant atmosphere as nature awakens. Following this month-to-month growth, the daylight duration remains stable through the early summer months of June and July, marking a peak before the gradual decline sets in with the arrival of autumn.
In April, the winds in Suwa, Japan, maintain a gentle touch at an average speed of 2.0 m/s (4 mph), reflecting a slight dip from March's breezy 1.9 m/s (4 mph). This month ushers in a transition as the air warms, with wind speeds starting to oscillate gently between 2.1 m/s (5 mph) in May and calming down to 1.4 m/s (3 mph) by June. The rhythm of the seasons is palpable as the winter's stronger winds give way to a serene spring atmosphere, creating a perfect backdrop for cherry blossom viewings and outdoor activities. As the days grow longer and warmer, the soft April winds herald the onset of new life in the gardens and parks across Suwa.
Weather in Suwa varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Suwa, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January present markedly different weather conditions. In April, the temperatures range from a chilly minimum of -6°C (21°F) to a much warmer maximum of 26°C (78°F), with an average of 9°C (48°F). This month experiences significantly higher precipitation at 143 mm (5.6 in) over about 13 days, along with a humidity level of 74%. In contrast, January is much colder, with temperatures dipping down to -18°C (0°F) at the minimum and peaking at just 12°C (53°F), leading to an average temperature of -2°C (29°F). Precipitation is lighter at 75 mm (3.0 in), occurring over 12 days, and the humidity is slightly higher at 76%. For a closer look, you can check out Suwa weather in January.
April weather presents a significant shift from the chill of February. While February experiences frigid temperatures, with a minimum of -18°C (0°F) and an average of -1°C (30°F), April sees a milder range, starting at a minimum of -6°C (21°F) and reaching an average of 9°C (48°F). The maximum temperatures in April can soar to 26°C (78°F), creating a stark contrast to February’s highest of 15°C (60°F). Additionally, April is wetter, with 143 mm (5.6 in) of precipitation over 13 days compared to February's 80 mm (3.2 in) over only 10 days. Interestingly, despite these differences, both months maintain the same humidity level of 74%. For a more detailed look at February's climate, check out Suwa weather in February.
In comparing the weather between April and March, April generally presents milder temperatures, with an average of 9°C (48°F) compared to March's average of 4°C (40°F). The maximum temperature in April can reach up to 26°C (78°F), notably warmer than March's high of 20°C (68°F). Both months experience similar levels of precipitation, with April slightly higher at 143 mm (5.6 in) over 13 days, compared to March's 141 mm (5.6 in) over 12 days. Additionally, April's humidity is slightly higher at 74% versus March's 70%. For a detailed look at March's weather, you can visit Suwa weather in March.
April and May exhibit notable trends in weather patterns, with May generally offering warmer conditions. In April, temperatures range from a minimum of -6°C (21°F) to a maximum of 26°C (78°F), averaging around 9°C (48°F). This month also witnesses significant rainfall, totaling 143 mm (5.6 in) over 13 days, accompanied by a humidity level of 74%.
In contrast, May boasts a milder climate, with temperatures ranging from a low of -1°C (31°F) to a high of 29°C (85°F), bringing the average to a comfortable 15°C (58°F). Precipitation slightly increases to 155 mm (6.1 in) but occurs over just 12 days, and humidity rises to 81%. For more details, visit Suwa weather in May.
April and June present distinct weather patterns, reflecting the transition from spring to summer. In April, temperatures range from a low of -6°C (21°F) to a comfortable average of 9°C (48°F), peaking at 26°C (78°F). This month typically experiences about 143 mm (5.6 in) of rainfall over 13 days, with a humidity level of 74%. In contrast, June brings warmer temperatures, with a minimum of 5°C (41°F), an average of 18°C (65°F), and a maximum reaching 29°C (84°F). Rainfall slightly increases to 149 mm (5.8 in) distributed over 14 days while humidity rises to 88%, creating a more humid atmosphere. For more detailed information about June weather, visit Suwa weather in June.
April and July showcase distinct contrasts in weather. In April, temperatures range from a chilly -6°C (21°F) at night to a comfortable 26°C (78°F) during the day, with an average of 9°C (48°F). Despite the milder temperatures, April sees considerable rainfall, accumulating 143 mm (5.6 in) over 13 days, coupled with a humidity level of 74%. In contrast, July experiences much warmer conditions, with nighttime lows of 14°C (58°F) and daytime highs reaching 33°C (91°F), averaging 22°C (72°F). However, it is also one of the wettest months, receiving 289 mm (11.4 in) of precipitation over 19 days and a noticeably higher humidity of 93%. For more detailed information, check out Suwa weather in July.
In April, the weather is notably cooler, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 26°C (78°F), averaging around 9°C (48°F). The month experiences significant precipitation, averaging 143 mm (5.6 in) over approximately 13 days, combined with a relative humidity of 74%. In contrast, August brings warmer temperatures, with lows of 12°C (53°F) and highs reaching up to 33°C (92°F), averaging 23°C (74°F). Although August has slightly more precipitation at 151 mm (5.9 in) over 16 days, it also sees higher humidity levels at 90%. For those interested in more details about the weather in August, Suwa weather in August provides further insights.
April and September exhibit notable differences in weather characteristics. In April, temperatures range from a chilly low of -6°C (21°F) to a pleasant high of 26°C (78°F), with an average of 9°C (48°F). The month receives around 143 mm (5.6 in) of precipitation over 13 days, and humidity averages 74%, creating a somewhat crisp atmosphere. In contrast, September enjoys warmer temperatures, with lows of 6°C (42°F) and highs reaching up to 30°C (86°F), averaging 19°C (66°F). This month also sees increased rainfall, totaling 171 mm (6.7 in) across 16 days, and higher humidity at 86%, contributing to a more muggy feel. For more detailed information, you can visit Suwa weather in September.
April and October each present unique weather characteristics. In April, temperatures range from a chilly minimum of -6°C (21°F) to a pleasant maximum of 26°C (78°F), with an average of 9°C (48°F). The month is relatively humid, with humidity levels at 74% and precipitation occurring over 13 days, totaling 143 mm (5.6 in). In contrast, October features slightly warmer temperatures, with a minimum of 0°C (33°F), an average of 13°C (56°F), and a maximum that matches April's peak at 26°C (79°F). However, October is wetter, receiving 237 mm (9.3 in) of rain over 16 days, and boasts even higher humidity at 83%. For more details about the October climate, check out Suwa weather in October.
April and November present distinct contrasts in weather. In April, temperatures range from a chilly minimum of -6°C (21°F) to a pleasant maximum of 26°C (78°F), with an average of 9°C (48°F). This month experiences significant rainfall, totaling 143 mm (5.6 in) over approximately 13 days, coupled with a humidity level of 74%. In comparison, November sees slightly milder conditions, with temperatures fluctuating between -4°C (25°F) and 18°C (65°F), and an average of 7°C (44°F). Precipitation in November is less intense, measuring 66 mm (2.6 in) across about 10 days, while humidity rises to 80%. For more detailed information about the climate, you can check Suwa weather in November.
April and December present distinct weather patterns, reflecting the transition from spring to winter. In April, temperatures range from a chilly minimum of -6°C (21°F) to a warm maximum of 26°C (78°F), with an average of 9°C (48°F). This month sees significant precipitation, totaling 143 mm (5.6 in) over 13 days, coupled with a humidity level of 74%. In contrast, December is much colder, with temperatures dropping to a minimum of -9°C (16°F) and peaking at 16°C (62°F), averaging just 1°C (34°F). While December experiences less precipitation at 84 mm (3.3 in) over 12 days, the humidity is slightly higher at 78%. For a more detailed look at the weather conditions in December, check out Suwa weather in December.
April in Suwa offers a unique transition to spring, showcasing a blend of cool and mild temperatures that stand out from the colder months prior. With a maximum reaching 26°C and a refreshing average of 9°C, the city begins to shake off winter's chill, though nights can still dip below freezing. This month also brings a notable increase in rainfall, with 143 mm spread over 13 days, a shift from the typically drier winter months. The higher humidity at 74% amplifies the feeling of moisture in the air, making the landscape lush and vibrant as nature awakens. For more detailed insights, check out Suwa Climate.