Last updated: August 21, 2025
In Shimabara, Japan, June unveils a climate that dances between warmth and moisture. With maximum temperatures reaching 32°C (90°F) and an average of 24°C (75°F), summer's onset is palpable. However, the season brings with it a significant humidity level of 86%, creating a muggy ambiance. Rainfall is frequent, with 262 mm (10.3 in) accumulated over 15 days, making it one of the wetter months of the year. This blend of warmth and precipitation shapes the lush landscapes and vibrant flora that characterize Shimabara during this time, inviting visitors to embrace the beauty of summer's potential in a setting rich with culture and natural wonders.
In June, Shimabara, Japan experiences a delightful shift towards summer, characterized by warmer temperatures and a vibrant atmosphere. With minimum temperatures rising to 16°C (60°F) and an average reaching 24°C (75°F), the region thrives in milder conditions compared to the preceding months. The maximum temperature can soar up to a balmy 32°C (90°F), hinting at the peak of summer's embrace. This month marks a significant increase in warmth, as residents and visitors shed heavier layers and embrace outdoor activities amidst lush landscapes. The transition into June sets the stage for the hotter months ahead, inviting everyone to enjoy the natural beauty and cultural festivities that flourish under the sun.
June marks a significant shift in precipitation patterns in Shimabara, Japan, as the region experiences its wettest month with a striking total of 262 mm (10.3 in) of rain over 15 days. This surge in rainfall not only surpasses the preceding months but also sets the stage for the intense downpours that follow in July, which sees the stakes rise even higher with a staggering 475 mm (18.7 in). The increase from 214 mm (8.4 in) in May illustrates a clear upward trend, highlighting the transition into the peak rainy season. As summer approaches, Shimabara's landscape is nourished by this abundance of moisture, fostering vibrant greenery and a lush environment, though residents must also prepare for the challenges that often accompany such heavy precipitation.
In June, Shimabara experiences a significant rise in humidity, reaching 86%, setting the stage for the hot summer months ahead. This increase marks a consistent upward trend that began in the spring, with humidity levels climbing from 78% in April to a notable 84% in May. By June, the city is already feeling the warmth of summer, as humidity peaks significantly before soaring further in July and August, where it reaches a staggering 92% and 91%, respectively. The transition from spring to summer is palpable, creating a lush, verdant landscape, but also a humid atmosphere that may challenge outdoor activities.
As summer approaches in Shimabara, Japan, the UV Index reaches significant heights. In June, the UV Index remains at a consistent 11, categorized as extreme, just like in May, which means that sun exposure should be limited to about 10 minutes to avoid skin damage. This pattern of high UV levels continues into July and August, with a peak of 12 in those months, prompting residents and visitors alike to take precautions against overexposure. Interestingly, the UV Index generally starts at a moderate 4 in January before escalating sharply, emphasizing the importance of being sun-safe throughout the year. For those looking to learn more about UV levels in this beautiful region, check out Shimabara UV Index.
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In Shimabara, Japan, June brings a delightful transition into the summer months, with approximately 255 hours of sunshine gracing the landscape. While this marks a slight decrease from May’s abundant 279 hours, it still contributes to a vibrant outdoor season. The trend showcases a steady increase in daylight hours as the year progresses, peaking in August with a remarkable 300 hours of sunlight. Shifting from early spring's gradual buildup, June maintains the momentum of longer days, creating a perfect backdrop for the blossoming flora and summer festivities. As the year unfolds, it's clear that each month plays a unique role in the sun-kissed story of Shimabara, inviting residents and tourists alike to bask in its warm glow.
In Shimabara, Japan, the likelihood of sunny weather takes a noticeable dip in June, with only a 21% chance of sunshine. This marks the low point in a trend that sees the sun more frequently in the earlier months of the year; for instance, January boasts a 38% chance, while April offers a more promising 41%. As summer approaches, July and August follow with similarly low probabilities, reflecting a pattern of cloudier and wetter conditions typical for this time of year. However, the likelihood of sunshine dramatically improves in the fall, soaring to 64% in October. These fluctuations highlight June's place as a transitional month that paves the way for the vibrant, sunlit days that return later in the year.
In Shimabara, Japan, June marks a delightful peak in daylight duration, basking in 14 hours of sunlight. This gentle ramp-up begins in the winter months, with just 10 hours of daylight in January, progressively increasing as spring unfolds. By April, the days lengthen to 12 hours, and May sees an invigorating 13 hours as nature awakens fully. The summer months maintain this blissful 14-hour illumination in both June and July before the light gradually wanes again in August. This progression highlights the remarkable pattern of increasing daylight, reaching its zenith during the vibrant days of early summer, before transitioning back to shorter days in the fall.
In Shimabara, Japan, the winds of June break away from the typically brisk patterns seen earlier in the year, reaching an average speed of just 1.6 m/s (4 mph). This notable dip marks the calmest month in terms of wind, following a gradual decrease from May, which averages 2.6 m/s. As spring transitions to summer, the wind speeds begin to pick up again, with July seeing a rise to 2.5 m/s. Overall, the trend reveals that while earlier months offer steadier breezes, June provides a tranquil interlude, setting the stage for the gentle winds that follow. This seasonal ebb and flow of wind adds a unique charm to Shimabara's climate, inviting both residents and visitors to embrace the peace of early summer.
Weather in Shimabara varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Shimabara, focusing on differences in temperature, rainfall, humidity, and UV levels.
June and January present stark contrasts in weather patterns. In June, temperatures range from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), with an average of 24°C (75°F), creating a warm and humid environment with an average humidity of 86%. The month is also characterized by significant precipitation, totaling 262 mm (10.3 in) over about 15 days. In contrast, January experiences much cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 19°C (66°F), averaging just 8°C (46°F). This winter month has considerably less precipitation at 53 mm (2.1 in) over only 6 days, and lower humidity at 75%. For a more detailed look at January's weather, visit Shimabara weather in January.
When comparing the weather in June and February, notable differences in temperature and humidity are evident. June boasts warmer temperatures, with an average of 24°C (75°F) and highs reaching up to 32°C (90°F), while February experiences much cooler conditions, averaging only 8°C (48°F) with highs of 22°C (71°F) and lows dipping to -2°C (29°F). Additionally, June is characterized by high humidity at 86% and significant rainfall, averaging 262 mm (10.3 in) over 15 days. In contrast, February has a milder humidity level of 71% and less precipitation, totaling 92 mm (3.6 in) over 9 days. For more insights on February weather, you can check Shimabara weather in February.
June and March present contrasting weather patterns, showcasing the transition from spring to summer. In June, temperatures range from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), leading to a warm average of 24°C (75°F). In contrast, March is much cooler, with temperatures stretching from a minimum of 3°C (37°F) to a maximum of 24°C (76°F) and an average of 12°C (55°F). Precipitation levels also differ significantly: June experiences heavy rainfall with 262 mm (10.3 in) over 15 days, while March sees less, with 145 mm (5.7 in) occurring over 11 days. Additionally, June's humidity is notably higher at 86%, compared to March's 71%. For more details on this month, visit Shimabara weather in March.
June weather is characterized by significantly warmer temperatures, with a minimum of 16°C (60°F) and an average high of 32°C (90°F), compared to April's milder climate that ranges from 5°C (41°F) to a maximum of 29°C (84°F). Additionally, June experiences much higher precipitation, totaling 262 mm (10.3 in) over 15 days, whereas April sees only 135 mm (5.3 in) across 8 days. The humidity also rises in June, peaking at 86%, in contrast to April's lower 78%. For more details on April's conditions, visit Shimabara weather in April.
In comparing the weather between May and June, we can see noticeable differences in temperature and precipitation. June experiences a higher average temperature, with a minimum of 16°C (60°F) and a maximum of 32°C (90°F), compared to May’s cooler range of 10°C (50°F) to 30°C (86°F). Precipitation also increases in June, with 262 mm (10.3 in) spread over 15 days, while May sees 214 mm (8.4 in) over 12 days. Additionally, June has slightly higher humidity levels at 86%, compared to May's 84%. For more detailed information on May weather in Shimabara, check out Shimabara weather in May.
June and July exhibit notable differences in weather patterns. In June, temperatures range from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), with an average of 24°C (75°F). This month sees significant rainfall, totaling 262 mm (10.3 in) over 15 days, combined with high humidity levels at 86%. In contrast, July experiences warmer conditions, with temperatures ranging from a minimum of 20°C (68°F) to a scorching maximum of 37°C (99°F) and an average of 27°C (82°F). Rainfall increases to 475 mm (18.7 in) over 19 days, and humidity rises slightly to 92%. For more detailed information on July weather, visit Shimabara weather in July.
June and August exhibit notable differences in weather patterns. June has an average temperature of 24°C (75°F) with highs reaching up to 32°C (90°F) and a considerable amount of precipitation at 262 mm (10.3 in) over 15 days, all while maintaining a high humidity level of 86%. In contrast, August is warmer with an average temperature of 29°C (85°F), peaking at 39°C (102°F). It also experiences even more precipitation, totaling 303 mm (11.9 in) over 14 days, and slightly higher humidity at 91%. For more detailed insights into August weather, you can visit Shimabara weather in August.
In comparing the weather between June and September, both months exhibit similar minimum temperatures, averaging around 16°C (60°F). However, September tends to be slightly warmer, with an average temperature of 25°C (78°F), peaking at a maximum of 35°C (94°F). In contrast, June has an average of 24°C (75°F) and a maximum of 32°C (90°F). While June experiences higher precipitation at 262 mm (10.3 in) over 15 days, September sees a decrease in rainfall, with 228 mm (9.0 in) also over 15 days, resulting in slightly lower humidity levels of 84% compared to June's 86%. For more detailed information on September weather, you can visit Shimabara weather in September.
June and October present distinct weather patterns, each with its own characteristics. June typically features a warmer climate, with average temperatures ranging from a minimum of 16°C (60°F) to a maximum of 32°C (90°F) and high humidity at 86%. This month also experiences significant rainfall, with 262 mm (10.3 in) of precipitation spread over 15 days. In contrast, October offers cooler temperatures, averaging between 10°C (50°F) and 33°C (91°F), with less precipitation at 120 mm (4.7 in) over 9 days, and a slightly lower humidity level of 83%. For more specific details on October weather, you can check Shimabara weather in October.
June and November showcase significantly different weather patterns. In June, the temperatures are notably warmer, with averages around 24°C (75°F) and maximums reaching up to 32°C (90°F). However, this month also experiences high humidity at 86% and considerable rainfall, totaling 262 mm (10.3 in) over about 15 days. In contrast, November presents a much cooler climate, with average temperatures dropping to 15°C (59°F) and a maximum of 25°C (78°F). The precipitation is significantly lower at 80 mm (3.1 in) over just 8 days, coupled with a slight decrease in humidity to 81%. For a closer look at November weather, you can visit Shimabara weather in November.
June and December present stark contrasts in weather conditions. In June, temperatures range from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), with an average of 24°C (75°F). The month is characterized by high humidity at 86% and significant rainfall, totaling 262 mm (10.3 in) over 15 days. In contrast, December offers much cooler temperatures, with a minimum of 0°C (33°F), an average of 10°C (49°F), and a maximum of 24°C (76°F). Precipitation is notably less in December, with only 89 mm (3.5 in) over about 7 days, and humidity slightly lower at 79%. For a more detailed look at December weather, you can visit Shimabara weather in December.
As June unfolds in Shimabara, the weather transforms dramatically, standing out with its warm temperatures and high humidity. With frequent rains and a notable increase in precipitation days, this month marks a transition to the lush greenery that defines the region's summer. Unlike the drier spells of earlier months, June's 262 mm of rain fosters a vibrant, refreshing atmosphere, making it a unique time to experience the natural beauty of the area. For a deeper dive into Shimabara's distinct climate, visit Shimabara Climate.