Last updated: August 21, 2025
May in Aso, Japan, is characterized by mild temperatures and high humidity. With a maximum temperature reaching 30°C (85°F) and an average of 18°C (65°F), the weather is pleasantly warm, though evenings can dip to a refreshing minimum of 2°C (36°F). Expect ample rainfall, totaling 209 mm (8.2 in) over 13 days, creating a lush landscape that enhances the region's renowned natural beauty. The humidity level hovers around 84%, adding to the vibrant and fresh atmosphere that defines Aso in May.
In May, Aso, Japan, welcomes the warmth of spring with a notable shift in temperatures, showcasing a minimum of 2°C (36°F) and an average of 18°C (65°F). This period marks a delightful transition, as daytime highs can soar to a maximum of 30°C (85°F), allowing locals and visitors alike to enjoy the outdoors. Compared to the preceding months, May's climate reveals a clear upward trend, with temperatures rising steadily from the frigid winter lows, culminating in a vibrant and mild atmosphere perfect for exploring Aso's breathtaking scenery and rich cultural heritage. The pleasant days and cooling evenings make May an ideal time for outdoor adventures, whether it’s hiking the stunning landscapes or partaking in local festivities.
May marks a significant shift in precipitation patterns in Aso, Japan, as the region experiences its wettest month so far, receiving 209 mm (8.2 in) of rain over 13 days. This increase is notable compared to the preceding months, with April witnessing a mere 135 mm (5.3 in). As the landscape transforms under the weight of spring showers, May serves as a precursor to the approaching rainy season, which peaks in July with a staggering 452 mm (17.8 in) across 21 days. The gradual climb in rainfall from January's 58 mm and February’s 98 mm showcases a clear upward trend, emphasizing Aso’s transition from the drier months of early winter into a lush, vibrant spring. The consistent rise in both precipitation amount and duration hints at the pivotal role May plays in setting the stage for the heavier rains that follow.
In May, Aso, Japan experiences a notable increase in humidity, reaching an average of 84%. This marks a significant rise from 78% in April, signaling the onset of the region's humid summer months. As the days grow warmer, humidity levels continue to climb, peaking at an impressive 92% by July. This trend underscores Aso's transition from the milder, drier conditions of winter into a more humid and lush atmosphere, setting the stage for the vibrant growth of the region’s renowned natural landscapes. The consistent rise in moisture also enhances the unique charm of Aso, as its breathtaking scenery becomes more vivid and alive with every passing month.
As May arrives in Aso, Japan, residents and visitors should be prepared for high levels of UV exposure, with the UV Index reaching an alarming 11, categorized as extreme. This mirrors the conditions of April, indicating a continuation of heightened sun exposure. During this month, individuals should limit their unprotected sun exposure to just 10 minutes to prevent skin damage. This pattern of extreme UV levels persists into June, illustrating the peak intensity of the sun in early summer. With the UV Index gradually increasing from the moderate levels in January to this June surge, awareness and proactive sun safety measures are essential. For those wishing to plan outdoor activities, it's crucial to stay informed and take precautions against UV radiation. Explore more details about the UV Index in Aso at Aso UV Index.
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May in Aso, Japan, greets visitors with an impressive 283 hours of sunshine, marking it as one of the sunniest months of the year. This upward trend in daylight begins in January with a mere 178 hours, gradually building towards May, where residents and travelers alike can bask in the warmth. Following May, the sunshine hours gently taper off into June with 254 hours, while the summer months maintain a lively ambiance, peaking in August at 294 hours. Overall, the months leading into summer reveal a delightful increase in sunlight, inviting both adventure and relaxation amidst Aso's stunning landscapes.
In Aso, Japan, the chances of enjoying sunny weather experience a notable decline as spring progresses into May, with only a 27% likelihood of sunshine. This contrasts sharply with the sunnier days observed in the earlier months, such as January and February, both sitting comfortably at 43%. As the season transitions, the likelihood of clear skies continues to diminish, reaching its lowest point in the summer months; for instance, July sees only a 15% chance of sunshine. Interestingly, autumn brings an upswing in sunny days, with October boasting a much more favorable 58%. Thus, while May may not be the sunniest month in Aso, it serves as a precursor to the drier, clearer days that await later in the year.
In Aso, Japan, the trend of daylight duration evolves beautifully throughout the year, reflecting the transition of the seasons. January and February offer a modest 10 hours of daylight, but as March arrives, the days begin to lengthen, increasing to 11 hours. The warmth of spring is fully embraced by April, which boasts 12 hours of daylight, leading seamlessly into May when the sun graces the landscape for an invigorating 13 hours. This upward trend peaks in June and July, each basking in 14 hours of daylight, while August gently tapers off to 13 hours. Autumn then begins to cast its spell, reducing daylight to 12 hours in September before settling back to 10 hours by November and December. This rhythmic cycle of light not only marks the passage of time but also paints a vibrant picture of Aso’s enchanting seasonal changes.
In Aso, Japan, May experiences a gentle breeze with an average wind speed of 2.4 m/s (5 mph), continuing the trend of moderate winds seen in the preceding months. Following a slight uptick in February, wind speeds dipped a bit in March and April, but May maintains a consistent pace reminiscent of the earlier months. As the spring fully unfolds, the winds remain relatively calm, typically lingering around the 5 mph mark and setting the stage for the warmer, more tranquil summer months ahead. This consistency not only enhances the picturesque landscapes but also invites outdoor enthusiasts to explore the natural beauty of Aso without the interruption of strong gusts.
Weather in Aso varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Aso, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present a striking contrast in weather conditions. In May, temperatures range from a chilly 2°C (36°F) to a warm 30°C (85°F), with an average of 18°C (65°F), creating a pleasant spring atmosphere. However, this month also experiences significant rainfall, with 209 mm (8.2 in) of precipitation spread over 13 days and humidity levels averaging around 84%. Conversely, January is much colder, with temperatures dipping to a minimum of -7°C (20°F) and averaging just 4°C (39°F). It sees only 58 mm (2.3 in) of precipitation over 6 days, coupled with lower humidity at 75%, making it a much drier month. Overall, May offers warmth and vibrant spring weather, while January brings a crisp, wintry chill. For more specific details on January weather, you can refer to Aso weather in January.
May and February present stark contrasts in weather conditions. In May, temperatures range from a chilly 2°C (36°F) to a warm 30°C (85°F), with an average of 18°C (65°F). In contrast, February sees much colder temperatures, with lows reaching -8°C (18°F) and an average of just 5°C (41°F), peaking at 19°C (67°F). Additionally, May experiences significantly higher precipitation at 209 mm (8.2 in) over 13 days, compared to February's 98 mm (3.9 in) across 10 days. The humidity level in May is notably higher at 84%, whereas February boasts a more comfortable 71%. For more detailed insights into February weather in Aso, you can visit Aso weather in February.
In comparing the weather of May and March, May typically exhibits much warmer temperatures, with a minimum of 2°C (36°F), an average of 18°C (65°F), and a maximum that can reach up to 30°C (85°F). In contrast, March is notably cooler, starting from a minimum of -3°C (27°F) and averaging only 9°C (49°F), peaking at 23°C (73°F). Moreover, May experiences higher precipitation levels, with 209 mm (8.2 in) over approximately 13 days, while March sees 137 mm (5.4 in) across about 12 days, leading to a notable difference in humidity as well—84% in May compared to 71% in March. For more details on March weather, check Aso weather in March.
In comparing the weather of May to April, May experiences significantly warmer temperatures, with nighttime lows of 2°C (36°F) and daytime averages reaching 18°C (65°F), compared to April’s cooler minimum of -1°C (31°F) and average of 14°C (57°F). May also sees a maximum temperature of 30°C (85°F), while April peaks at 27°C (81°F). However, May is wetter, receiving 209 mm (8.2 in) of precipitation over 13 days, compared to April's 135 mm (5.3 in) over just 10 days. Additionally, humidity levels increase in May to 84%, slightly higher than April's 78%. For a detailed look at April weather in the region, you can check Aso weather in April.
May and June display a noticeable transition in weather patterns. In May, temperatures range from a chilly minimum of 2°C (36°F) to a warm maximum of 30°C (85°F), with an average of 18°C (65°F). The month sees significant rainfall, totaling 209 mm (8.2 in) across 13 days, and a high humidity level of 84%. In contrast, June experiences milder nights with a minimum temperature of 11°C (52°F) and an average of 21°C (71°F), while maximum temperatures peak at 31°C (88°F). Rainfall increases to 276 mm (10.9 in) over 16 days, along with a slight rise in humidity to 86%. For more detailed insights into the weather conditions, check out Aso weather in June.
May and July present contrasting weather patterns, with May experiencing milder temperatures ranging from a minimum of 2°C (36°F) to a maximum of 30°C (85°F) and an average of 18°C (65°F). The month sees significant precipitation of 209 mm (8.2 in) over approximately 13 days, coupled with a humidity level of 84%. In contrast, July offers warmer conditions, with temperatures starting at a minimum of 15°C (59°F) and peaking at 34°C (94°F), averaging around 25°C (77°F). However, July is notably wetter, receiving 452 mm (17.8 in) of rain over 21 days and experiencing higher humidity at 92%. For more detailed insights into the July weather, refer to this link: Aso weather in July.
May and August present contrasting weather experiences. In May, temperatures range from a chilly minimum of 2°C (36°F) to a warm maximum of 30°C (85°F), with an average of 18°C (65°F). The month sees significant precipitation, totaling 209 mm (8.2 in) over 13 days, accompanied by a humidity level of 84%.
In comparison, August is notably warmer, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 35°C (96°F), averaging 26°C (79°F). It also experiences greater rainfall, with precipitation reaching 253 mm (10.0 in) across 16 days, and higher humidity at 91%. These differences illustrate the transition from early spring to the peak of summer. For a detailed look at August's specific weather patterns, refer to Aso weather in August.
In May, temperatures range from a chilly minimum of 2°C (36°F) to a warm maximum of 30°C (85°F), with an average of 18°C (65°F). The month sees significant rainfall, with approximately 209 mm (8.2 in) over 13 days, while humidity remains high at 84%. In contrast, September experiences milder conditions, with minimum temperatures starting at 9°C (49°F) and reaching a maximum of 33°C (92°F), averaging 23°C (73°F). Despite slightly lower rainfall at 192 mm (7.6 in) across 15 days, the humidity remains consistent at 84%. For more details on September weather, you can refer to this link: Aso weather in September.
May and October exhibit some similarities in temperature, with both months experiencing a maximum that can reach around 30°C (85°F for May and 87°F for October). However, May tends to have warmer average temperatures, sitting at 18°C (65°F), compared to October’s slightly cooler average of 17°C (63°F). May also has a higher minimum temperature of 2°C (36°F) compared to 4°C (40°F) in October. In terms of precipitation, May is significantly wetter, with 209 mm (8.2 in) over 13 days, while October sees only 122 mm (4.8 in) over 9 days. Humidity levels remain quite similar in both months, around 84% for May and 83% for October. For more specific details about October weather, you can refer to Aso weather in October.
May and November present contrasting weather patterns. In May, temperatures range from a chilly 2°C (36°F) at night to a warm 30°C (85°F) during the day, with an average of 18°C (65°F). This month also experiences higher precipitation at 209 mm (8.2 in) over 13 days, accompanied by a humidity level of 84%. In contrast, November features cooler temperatures, with nighttime lows dipping to -4°C (25°F) and daytime highs reaching 24°C (76°F), averaging around 11°C (51°F). Precipitation decreases significantly to 60 mm (2.3 in) over just 8 days, and humidity slightly drops to 81%. For more detailed information about November weather in Aso, you can visit Aso weather in November.
May and December present contrasting weather patterns. In May, temperatures range from a cool 2°C (36°F) at night to a warm 30°C (85°F) during the day, with an average of 18°C (65°F). This month experiences significant rainfall, totaling 209 mm (8.2 in) over 13 days, combined with high humidity levels of 84%. In contrast, December features much colder temperatures, with nighttime lows plummeting to -5°C (24°F) and daytime highs reaching a mild 21°C (70°F), averaging just 5°C (41°F). The precipitation during December is considerably less, with only 70 mm (2.8 in) over 7 days and slightly lower humidity at 79%. For more specific details on weather conditions, you can check Aso weather in December.
As May unfolds in Aso, the weather transforms into a delightful blend of warmth and moisture, setting it apart from other months. With temperatures rising to a pleasant average of 18°C, the days feel invigorating, though occasional cool nights remind us of spring’s lingering chill. While May witnesses more precipitation, with rain gracing the landscape on about 13 days, this humidity contributes to the region's lush greenery, making it a vibrant time for nature enthusiasts. For a deeper insight into how Aso’s weather varies throughout the year, check out Aso Climate.