Last updated: August 21, 2025
Experience the vibrant May weather in Tsukuba, Japan, where temperatures can soar to a maximum of 34°C (93°F) but typically average around a comfortable 19°C (67°F). The month sees a wide range of temperatures, dipping as low as 6°C (43°F) during cooler nights. With 123 mm (4.8 in) of precipitation spread across 12 days, the humidity remains high at an average of 81%, contributing to a lush and green landscape. Whether you’re enjoying the warm sun or navigating brief showers, May offers a dynamic and inviting Japanese spring experience.
May marks a significant transition in Tsukuba, Japan, as temperatures begin to rise, showcasing the arrival of warmer days. The month starts with a minimum temperature of 6°C (43°F) and reaches an inviting average of 19°C (67°F), peaking at a delightful 34°C (93°F). This upward trend from the cooler months highlights May as a time of blooming flora and vibrant outdoor activities, making it a favorite for locals and visitors alike. As the city shakes off the chill of winter, the pleasant warmth of May sets the stage for the summer heat that follows. This combination of comfortable averages and warm highs creates an ideal climate for exploring Tsukuba's natural beauty and cultural attractions.
May in Tsukuba, Japan, sees a significant precipitation total of 123 mm (4.8 in), marking it as one of the wetter months of the year. This substantial rainfall falls over 12 days, suggesting a pattern of frequent but manageable showers that can nurture the verdant landscapes typical of early summer. Following April's precipitation of 112 mm (4.4 in), May maintains a similar level of rainfall, indicating a consistent flow of moisture as the region transitions toward the more intense rainfalls in June and July. The gradual increase in precipitation from early spring to late spring hints at the burgeoning growth of flora, showcasing Tsukuba's ability to thrive in these transitional months. Overall, May’s weather serves as a prelude to the summer deluge, emphasizing the importance of this month in shaping the seasonal climate.
In Tsukuba, Japan, May marks a transition into the warmer months, with humidity levels stabilizing at around 81%. This moderate humidity reflects a gradual decline from the damp chill of winter, where January and February see levels soaring at 88% and 86%, respectively. As spring unfolds, the air becomes slightly more breathable; April experiences a drop to 78%. However, May’s average humidity indicates a resurgence of moisture, creating a balance before the incoming summer months. This rise foreshadows the peak humidity levels of 92% seen in July and August, illustrating a clear trend of increasing humidity as the year progresses into the warmer seasons.
As spring transitions into summer in Tsukuba, Japan, the UV Index sees a significant spike, particularly in May, where it reaches a striking 10 on the scale, indicating a very high exposure level with a burn time of just 15 minutes. This sharp increase from April's 9 suggests a growing intensity of sunlight, urging residents and visitors alike to take extra precautions to protect their skin. Interestingly, the UV Index remains at a steady 10 into June, before peaking at 11 in July, marking the height of summer sun exposure. With these heightened levels, the trend clearly shows that as the year progresses, so does the need for vigilance against UV radiation. For more detailed insights, visit Tsukuba UV Index.
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In Tsukuba, Japan, May shines brightly as one of the sunniest months of the year, boasting a remarkable 274 hours of sunshine. This peak is part of a broader upward trend, with hours of sunlight steadily increasing from January through to May, where the daylight reaches its zenith. Following this vibrant month, the sunshine hours begin to taper off, with June still enjoying a generous 253 hours. This pattern of rising sunshine hours in spring transforms Tsukuba into a lively tapestry of blooming flowers and outdoor activities, making it a delightful time to embrace the warm weather before the summer humidity rolls in.
Tsukuba, Japan, experiences a notable shift in sunny weather as spring transitions into summer. Particularly in May, the likelihood of clear skies drops to a mere 22%, marking one of the lowest chances for sunshine in the year. This decline follows a moderate April with a 48% chance of sun, suggesting that while the days begin to warm, the cloud cover often takes over. As summer approaches in June, the probability remains low at 21%, hinting at a trend of less sunny weather ahead. In contrast, the months preceding May generally offer more favorable conditions, with February peaking at 71% and January maintaining a respectable 55%. Such fluctuations underscore the variability of Tsukuba's spring and early summer climate, making May a month where sunny days are a treasured rarity.
In Tsukuba, Japan, daylight duration steadily increases as the year progresses, reaching a peak in May with 14 hours of daylight. This month marks a vibrant transition into summer, following a gradual rise from 9 hours in January. The ascent continues through February and March, where the increase becomes more pronounced as nature awakens in April. Following May, daylight remains consistent at 14 hours in June and July, before gently tapering off as summer wanes. The gradual decline resumes after August, echoing the early months where daylight is shorter, ultimately returning to 9 hours by December. This rhythmic pattern of light is a beautiful reminder of the changing seasons in Tsukuba, celebrating both the lengthening days of spring and the rich hues of autumn.
In May, Tsukuba experiences a gentle breeze with an average wind speed of 2.7 m/s (6 mph), maintaining the moderate conditions observed in the preceding months like April. This month sees a continuation of relatively stable winds, with speeds slightly lower than the peak of 2.9 m/s earlier in the spring. The trends throughout the year show a noticeable decline in wind speed during the summer months, hitting a low of 1.9 m/s (4 mph) in July. However, as winter approaches, wind speeds gradually gain momentum again. This rhythmic pattern of varying winds underscores a tranquil yet dynamic atmosphere in Tsukuba, perfectly reflecting the shift of seasons.
Weather in Tsukuba varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Tsukuba, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present strikingly different weather conditions. In May, temperatures range from a mild 6°C (43°F) at night to a warm 34°C (93°F) during the day, with an average of about 19°C (67°F). This month also sees a fair amount of rainfall, totaling 123 mm (4.8 in) over approximately 12 days, accompanied by a humidity level of 81%. In contrast, January is significantly colder, with nighttime temperatures plunging to -10°C (14°F) and daytime highs reaching only 17°C (63°F), averaging around 4°C (39°F). Precipitation is much lower in January, at just 38 mm (1.5 in) over four days, though humidity is slightly higher at 88%. For more detailed insights, you can explore Tsukuba weather in January.
When comparing the weather in May and February, notable differences emerge. May boasts a much warmer temperature range, with minimums around 6°C (43°F) and maximums reaching up to 34°C (93°F), while February experiences a chillier range, with temperatures dipping as low as -5°C (23°F) and peaking at 21°C (70°F). Precipitation is more prevalent in May, with 123 mm (4.8 in) falling over 12 days, compared to February's lighter 37 mm (1.5 in) over just 6 days. Humidity levels are relatively high in both months, at 81% in May and 86% in February, contributing to the overall feeling of dampness during the winter month. For more details on February weather, you can check Tsukuba weather in February.
In comparing the weather between March and May, a significant increase in temperatures is evident. May boasts a minimum temperature of 6°C (43°F) and an average high of 34°C (93°F), while March experiences much cooler temperatures, ranging from a minimum of -4°C (25°F) to a maximum of 24°C (76°F). Precipitation levels are quite similar, with May receiving 123 mm (4.8 in) over 12 days and March recording 124 mm (4.9 in) across 11 days. Interestingly, humidity remains constant at 81% for both months. For a more detailed look at March weather, you can visit Tsukuba weather in March.
In comparing the weather between April and May, May tends to be significantly warmer, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 34°C (93°F), compared to April's cooler range of -1°C (31°F) to 29°C (84°F). Additionally, May experiences higher humidity at 81% compared to April's 78%. Both months see a similar amount of precipitation, with May recording 123 mm (4.8 in) over 12 days and April slightly less at 112 mm (4.4 in) over 11 days. For more detailed insights, you can visit Tsukuba weather in April.
In May, temperatures range from a minimum of 6°C (43°F) to a maximum of 34°C (93°F), with an average of 19°C (67°F). The month experiences 123 mm (4.8 in) of precipitation over 12 days, accompanied by a humidity level of 81%. In contrast, June sees slightly warmer temperatures, with a minimum of 12°C (55°F), an average of 22°C (72°F), and a maximum of 33°C (92°F). Precipitation increases to 132 mm (5.2 in) over 16 days, and humidity rises to 88%. This trend indicates that while both months can be quite warm, June tends to be more humid and rainy. For more details on June weather in Tsukuba, you can visit Tsukuba weather in June.
In May, temperatures range from a cool minimum of 6°C (43°F) to a warm maximum of 34°C (93°F), with an average of 19°C (67°F). The month experiences around 123 mm (4.8 in) of precipitation over about 12 days, accompanied by a humidity level of 81%. In contrast, July sees much warmer weather, with minimum temperatures starting at 17°C (63°F) and soaring to a maximum of 37°C (98°F), averaging 26°C (79°F). The month also sees increased precipitation, totaling 218 mm (8.6 in) over 20 days, along with higher humidity levels at 92%. For more detailed insights, you can refer to Tsukuba weather in July.
In May, temperatures range from a brisk 6°C (43°F) to a warm 34°C (93°F), with an average of 19°C (67°F). The month experiences significant rainfall, totaling 123 mm (4.8 in) over approximately 12 days, while humidity levels remain high at 81%. In contrast, August showcases much warmer conditions, with temperatures starting at 17°C (62°F) and peaking at 37°C (98°F), averaging 28°C (82°F). The precipitation is slightly lower at 114 mm (4.5 in) over 14 days, and humidity increases to 92%. For a detailed look at August weather, check Tsukuba weather in August.
May and September present distinct weather characteristics. In May, temperatures range from a cool 6°C (43°F) at night to a warm 34°C (93°F) during the day, with an average of 19°C (67°F). Although May has a relatively high humidity of 81%, it sees about 123 mm (4.8 in) of precipitation over 12 days.
In contrast, September experiences milder nights with a minimum temperature of 12°C (54°F) and slightly higher daytime averages around 23°C (74°F), peaking at 35°C (95°F). This month is also wetter, with 157 mm (6.2 in) of rain across 17 days and an increase in humidity to 89%. For more detailed information about September weather, visit Tsukuba weather in September.
In May, temperatures in Tsukuba range from a cool 6°C (43°F) at night to a warm 34°C (93°F) during the day, with an average temperature of 19°C (67°F). The month experiences about 123 mm (4.8 in) of precipitation over 12 days, and humidity levels are moderately high at 81%. In contrast, October sees slightly cooler temperatures, with a minimum of 6°C (42°F), an average of 18°C (64°F), and a maximum of 32°C (90°F). However, October is wetter, receiving 225 mm (8.8 in) of rain across 14 days and higher humidity at 87%. For more details, check Tsukuba weather in October.
May and November present distinctly different weather patterns. In May, temperatures range from a minimum of 6°C (43°F) to a maximum of 34°C (93°F), with an average of 19°C (67°F), showcasing the warmth of spring. This month experiences higher precipitation of 123 mm (4.8 in) over about 12 days, along with a humidity level of 81%. In contrast, November reflects the onset of winter chill, with temperatures ranging from -2°C (30°F) to 23°C (74°F) and an average of 12°C (54°F). The month sees significantly less rain, totaling 63 mm (2.5 in) across approximately 7 days, while humidity slightly increases to 85%. For those interested in more detailed November weather patterns, please refer to Tsukuba weather in November.
May and December present striking contrasts in weather. In May, temperatures range from a minimum of 6°C (43°F) to a maximum of 34°C (93°F), with an average of 19°C (67°F). This month experiences significant precipitation, totaling 123 mm (4.8 in) over approximately 12 days, while humidity remains high at 81%. Conversely, December sees much cooler temperatures, ranging from -4°C (26°F) to a maximum of 20°C (68°F), with an average of only 6°C (43°F). Precipitation decreases to 50 mm (1.9 in) over just 6 days, and humidity levels rise slightly to 86%. For more details about December weather, you can check out Tsukuba weather in December.
As May arrives in Tsukuba, the weather transforms into a delightful blend of warmth and humidity, marking a significant shift from the cooler temperatures of earlier months. With temperatures climbing to pleasing highs, the sense of summer begins to emerge, inviting residents and visitors alike to enjoy the outdoors. However, the humidity remains notably high, creating a lush atmosphere that is typical of this time of year. While May may bring occasional rain, with several days of precipitation, it serves as a gentle reminder of the rainy season to come. For a more comprehensive understanding of how May contrasts with other months, be sure to explore the full details at Tsukuba Climate.