Last updated: August 21, 2025
In May, Fukushima, Japan experiences a transition into warmer weather, with maximum temperatures reaching 18°C (65°F) and an average of 12°C (53°F). The month is characterized by a minimum temperature of 6°C (44°F), offering a refreshing coolness in the air. Precipitation is notable, with a total of 118 mm (4.6 in) over 12 days, contributing to the region's lush greenery. Coupled with high humidity levels at 86%, this period awakens the senses and heralds the onset of vibrant growth, making May a unique and dynamic month in Fukushima.
As spring blossoms into summer, May in Fukushima, Japan marks a delightful transition with temperatures finally warming up. The month begins with a minimum of 6°C (44°F) and peaks at a comfortable 18°C (65°F), bringing a vibrant average of 12°C (53°F). This significant increase from April's cooler days reflects the gradual warming trend that carries through the year. Compared to the chill of winter and the crispness of early spring, May invites residents and visitors alike to enjoy the outdoors with renewed warmth, paving the way for the balmy days of June ahead.
In May, Fukushima experiences a significant transition in its precipitation patterns, with an average of 118 mm (4.6 in) of rainfall spread across 12 days. This marks a slight decrease from the 103 mm (4.1 in) recorded in April, while maintaining higher levels of moisture compared to earlier spring months. As the region approaches summer, this month hints at the upcoming increase in humidity and rain, especially as June typically sees similar precipitation amounts. The consistent rainfall in early summer sets the stage for lush greenery, showcasing Fukushima's vibrant natural landscapes that flourish as the season progresses. Overall, May serves as a pivotal month, bridging the drier spring and the wetter summer months.
In Fukushima, Japan, May brings a notable rise in humidity, reaching a significant 86%—a stark contrast to the drier months preceding it. As spring transitions to summer, the increased moisture sets the stage for a trend that continues into the following months, with June climbing to 91% and peaking at 95% in July. This surge indicates a shift from the more temperate conditions of winter, where humidity levels were consistently around 78% to 79% in the preceding months. The gradual increase in humidity throughout the late spring and into summer highlights Fukushima's seasonal shift, shaping an atmosphere that feels increasingly lush and vibrant as nature awakens from its winter slumber.
As spring transitions into summer, Fukushima, Japan, experiences a notable shift in UV radiation levels. By May, the UV Index reaches 9, categorizing it as very high, which signifies a significant increase in sun exposure compared to earlier months. This escalation is reflected in the decreasing burn time of just 15 minutes, emphasizing the importance of sun protection as UV risks rise. Following a gradual climb from a moderate exposure in January through April, the onset of May marks the beginning of a period where caution becomes essential for outdoor activities. With June and July showing even more intense UV levels, residents and visitors alike should remain vigilant. For detailed UV forecasts, check out Fukushima UV Index.
UV Risk Categories
As May unfolds in Fukushima, Japan, residents bask in 305 hours of glorious sunshine, marking it as one of the sunniest months of the year. Following a steady ascent from 152 hours in January to 282 hours in April, May showcases a peak that is mirrored again in July, both months offering a vibrant embrace of bright days. This upward trend highlights a seasonal climax, as spring transitions into summer, allowing for longer hours of daylight. In contrast, the months that follow begin to taper off, with June experiencing a slight decline to 297 hours, hinting at the gradual shift towards cooler weather. Overall, May’s sunshine paints a perfect backdrop for outdoor activities and natural beauty, making it a cherished time for both residents and visitors alike.
In Fukushima, Japan, the likelihood of sunny weather in May stands at 32%, which reflects a slight dip from the more promising 47% observed in April. This month typically transitions from the early spring chill, as the weather becomes increasingly pleasant. While May experiences a moderate chance of sunshine, it is worth noting that the sunny days are still more frequent than in the earlier winter months, where the chances languish around the low twenties. As the region moves into June, the probability of sunny weather rises again to 36%, suggesting that a more stable and warm climate is just around the corner. Overall, while May might not be the sunniest month, it certainly offers a glimpse of the brighter days ahead.
As May unfolds in Fukushima, Japan, the region experiences a delightful upswing in daylight duration, reaching 14 hours of sunlight. This increase reflects a trend that begins in the early months of the year, as daylight gradually enhances from 9 hours in January to 11 hours by March. The arrival of April showcases a significant leap to 13 hours, setting the stage for the vibrant month of May. Following this peak, daylight begins to taper off slightly during the summer months, with July still enjoying 14 hours, before gradually returning to the shorter days experienced in the fall and winter. This seasonal rhythm not only marks the return of warmth but also invigorates outdoor life, inviting residents to savor the extended hours of daylight.
In Fukushima, Japan, the wind patterns reveal an intriguing seasonal ebb and flow. As spring transitions into summer, May showcases a noticeable decline in wind speed, averaging 5.8 m/s (13 mph), one of the lowest speeds recorded in the year. This marked decrease follows the more robust winds of earlier months, with January peaking at 9.1 m/s (20 mph) and gradually tapering off through April. The gentle breezes of May hint at the calm and warmer summer days ahead, contrasting with the brisk gusts of winter and the earlier spring months. This trend illustrates how the wind dynamics shift with the seasons, offering a serene respite in May before the summer winds begin to ramp up again.
Weather in Fukushima varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Fukushima, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January exhibit stark contrasts in weather, showcasing the transition from spring to winter. In May, temperatures range from a minimum of 6°C (44°F) to a maximum of 18°C (65°F), with an average temperature of 12°C (53°F). The month sees 118 mm (4.6 in) of precipitation over approximately 12 days, accompanied by high humidity levels of 86%. In contrast, January presents a chilly climate with minimum temperatures plummeting to -8°C (18°F) and a maximum of 9°C (49°F), averaging around 0°C (32°F). January also experiences slightly more precipitation at 128 mm (5.0 in) over 20 days but with lower humidity at 79%. For more details, you can check Fukushima weather in January.
May generally offers milder temperatures compared to February, with average highs around 18°C (65°F) compared to February's maximum of just 9°C (48°F). While May sees a pleasant increase in temperature, it also experiences higher humidity levels at 86% compared to February's 78%. Precipitation is more frequent in February, with rain or snow occurring on 22 days, whereas May sees precipitation on only 12 days, totaling slightly less at 118 mm (4.6 in) compared to 134 mm (5.3 in) for February. For more details on what to expect during this cold month, check out Fukushima weather in February.
May generally offers milder temperatures compared to March, with minimums around 6°C (44°F) and maximums reaching up to 18°C (65°F), while March experiences colder lows of -4°C (25°F) and highs peaking at 12°C (53°F). The average temperature in May is significantly warmer at 12°C (53°F) compared to March's average of just 4°C (39°F). Both months see notable precipitation, with May recording 118 mm (4.6 in) over 12 days, slightly higher than March's 105 mm (4.1 in) over 15 days. Additionally, May has higher humidity at 86%, contrasting with March's 77%, making the latter feel drier despite having more rainy days. For a more detailed look at March weather, check out Fukushima weather in March.
When comparing the weather in April and May, it's clear that May tends to be warmer and wetter. May has a minimum temperature of 6°C (44°F) and an average of 12°C (53°F), while April features a lower minimum of 1°C (35°F) and an average of 7°C (46°F). Additionally, May sees more precipitation, totaling 118 mm (4.6 inches) over 12 rainy days, compared to April's 103 mm (4.1 inches) over 14 days. The humidity is also slightly higher in May, at 86%, compared to April's 78%. For more detailed information about April, you can check Fukushima weather in April.
May and June exhibit noticeable differences in weather patterns. In May, temperatures range from a minimum of 6°C (44°F) to a maximum of 18°C (65°F), with an average temperature of 12°C (53°F). The month experiences significant precipitation, totaling 118 mm (4.6 in) over 12 days, accompanied by a high humidity level of 86%.
In contrast, June sees warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 21°C (69°F), leading to an average of 15°C (60°F). While June has slightly higher precipitation at 128 mm (5.0 in) over 11 days, it also has a higher humidity level at 91%. This shift marks a transition into the warmer and more humid summer season. For more details, you can check Fukushima weather in June.
In May, the weather is generally mild, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 18°C (65°F) and an average of 12°C (53°F). With 118 mm (4.6 in) of precipitation over 12 days, the month is quite wet and characterized by high humidity at 86%.
In contrast, July brings much warmer conditions, with a minimum of 14°C (57°F), an average of 20°C (68°F), and a maximum of 26°C (79°F). Although July has slightly more precipitation at 120 mm (4.7 in) over 10 days, it is also marked by higher humidity levels at 95%.
For a detailed look at July's weather, you can refer to Fukushima weather in July.
May and August present contrasting weather patterns, showcasing the transition from spring to summer. In May, temperatures range from a cool 6°C (44°F) at night to a mild 18°C (65°F) during the day, with an average of 12°C (53°F). The month experiences significant rainfall, totaling 118 mm (4.6 in) over 12 days, coupled with high humidity at 86%. In contrast, August boasts much warmer temperatures, with minimums at 17°C (62°F) and maximums reaching 27°C (81°F), averaging 22°C (72°F). However, August is also wetter, with precipitation totaling 193 mm (7.6 in) over 14 days and even higher humidity levels at 97%. For more detailed insights into the weather, take a look at Fukushima weather in August.
May and September showcase distinct weather patterns, marking the transition between spring and the onset of autumn. In May, temperatures range from a chilly 6°C (44°F) at night to a mild 18°C (65°F) during the day, with an average temperature of 12°C (53°F). The month experiences significant rainfall, totaling 118 mm (4.6 in) over about 12 days and an average humidity of 86%. In contrast, September is notably warmer, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 28°C (82°F), averaging 20°C (69°F). This month also sees a higher precipitation of 150 mm (5.9 in) across the same number of days, with humidity reaching 89%. For more details on September weather, you can visit Fukushima weather in September.
May and October exhibit distinct weather patterns that reflect the transition between spring and autumn. In May, temperatures typically range from a minimum of 6°C (44°F) to a maximum of 18°C (65°F), with an average of 12°C (53°F). This month experiences about 118 mm (4.6 in) of precipitation over approximately 12 days and maintains a high humidity level of 86%.
In contrast, October sees a slightly warmer average temperature of 15°C (59°F), with minimums of 7°C (44°F) and maximums climbing to 23°C (74°F). However, it is also characterized by increased rainfall, totaling around 162 mm (6.4 in) across 15 days, and a lower humidity of 81%. For a detailed overview of the weather specifics for October, you can refer to Fukushima weather in October.
May and November present distinctly different weather patterns. In May, temperatures range from a minimum of 6°C (44°F) to a maximum of 18°C (65°F), with an average of 12°C (53°F). The month experiences about 118 mm (4.6 in) of precipitation over 12 days and is characterized by high humidity at 86%. In contrast, November sees cooler conditions, with temperatures ranging from -2°C (29°F) to 17°C (63°F) and an average of 9°C (48°F). Precipitation increases to 164 mm (6.5 in) over 19 days, and humidity drops to 78%. For more insights on November weather, you can visit Fukushima weather in November.
May and December present striking contrasts in weather conditions. In May, temperatures range from a minimum of 6°C (44°F) to a pleasant average of 12°C (53°F), peaking at 18°C (65°F). However, the month is marked by considerable rainfall, with 118 mm (4.6 in) falling over 12 days and high humidity at 86%. In contrast, December experiences much colder temperatures, with averages dropping to a minimum of -6°C (21°F) and an overall average of just 2°C (36°F), though it can reach a maximum of 14°C (57°F) on warmer days. Additionally, December has higher precipitation, totaling 207 mm (8.2 in) over 27 days, and lower humidity at 77%. To learn more about the specifics of December’s climate, you can check Fukushima weather in December.
As May unfolds in Fukushima, the weather brings a distinct transition from the chill of earlier months, showcasing a more moderate climate with milder temperatures. While temperatures begin to rise, averaging a comfortable 12°C (53°F), the high humidity, reaching 86%, often complements the frequent precipitation, which amounts to 118 mm (4.6 in) over 12 days. This combination of warmth and moisture not only nurtures blossoming flora but also sets the stage for vibrant natural landscapes. To explore the full range of climate conditions year-round, visit Fukushima Climate.