Last updated: August 21, 2025
June in Koshima, Japan, presents a warm and humid atmosphere, characterized by an average temperature of 24°C (76°F), peaking at a maximum of 27°C (81°F) and dropping to a minimum of 19°C (67°F). The month is notably wet, with an impressive 491 mm (19.3 in) of precipitation over 19 days, resulting in a lush, green landscape. The high humidity level of 86% intensifies the tropical feel, making June a quintessential embodiment of Koshima's vibrant summer season.
In June, Koshima, Japan, begins to embrace the warmth of summer, with temperatures reflecting a delightful rise. The month kicks off with a minimum of 19°C (67°F), gradually warming to an average of 24°C (76°F) and peaking at a comfortable 27°C (81°F). This marks a significant jump from the cooler spring temperatures, making June an inviting time for outdoor activities and exploration. As the city transitions from the mild conditions of May, the pleasant warmth coupled with increased humidity ushers in a vibrant atmosphere, perfect for enjoying Koshima's natural beauty.
June in Koshima, Japan, marks a significant peak in precipitation, with a staggering 491 mm (19.3 in) of rainfall recorded, making it the wettest month of the year. This deluge occurs over 19 days, indicating a pattern of frequent rainfall that enhances the region's lush, vibrant landscapes. The dramatic rise in precipitation compared to previous months, especially May's 273 mm (10.7 in), highlights a transition into the summer monsoon season. As the city experiences an average of nearly half a meter of rain, the increased humidity and abundant water invigorate both the environment and the local ecosystem, creating a vivid tapestry of flora thriving under these damp conditions.
As June rolls into Koshima, Japan, the humidity reaches a striking 86%, marking a notable peak in the seasonal trend. This increase follows a gradual rise from 72% in January through the warming months, culminating in a sultry summer atmosphere. The months leading up to June showcase a steady climb, with March and April holding relatively moderate levels before the humidity really takes off in May. Following June, the humidity remains high in July at 90%, suggesting that Koshima experiences its most humid stretch during the summer months. This pattern highlights the region's transition from a mild to a tropical climate, creating a lush and vibrant environment that is characteristic of the season.
In June, Koshima, Japan experiences an extreme UV Index of 12, maintaining the same high levels seen in May. This intensity translates to a burn time of just 10 minutes, prompting outdoor enthusiasts to take extra precautions. The UV levels in Koshima follow a notable trend, rising steadily from a moderate index of 5 in January to 13 in the peak summer months of July and August. As summer approaches, residents and visitors should remain vigilant in protecting their skin, while taking advantage of the vibrant outdoor atmosphere. For more detailed insights on UV exposure throughout the year, check out the Koshima UV Index.
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As June unfolds in Koshima, Japan, the sunshine continues to cast its warm glow with 242 hours of sunlight, a delightful interlude before the summer's peak. Following a splendid May that saw 280 hours of light, June sits comfortably as a transition month, showcasing a slight decrease yet still benefiting from an abundance of sunny days. The gentle shift hints at the approach of the sultry July and August, which promise to deliver an impressive surge in sunlight, peaking at 302 and 319 hours respectively. This steady increase throughout the spring months culminates in a seasonal crescendo, reflecting Koshima's vibrant and inviting atmosphere as summer beckons.
In Koshima, Japan, the month of June brings a notable dip in the likelihood of sunny weather, with only a 17% chance of sunshine. This trend follows a generally upward trajectory through the early months of the year, peaking in September and October when clear skies are more common, boasting chances as high as 46% and 53%, respectively. Interestingly, while May typically ushers in pleasant spring weather, it also shows a lower likelihood of sun compared to other months, contrasting sharply with the glorious summer months of July and August, which see a resurgence with 26% and 38% chances. Overall, June stands out as a transitional month, suggesting that those seeking sunny days in Koshima may want to plan their outings for later in the year when the sun is more likely to shine.
In Koshima, Japan, June marks a delightful peak in daylight, offering an impressive 14 hours of sunlight. This increase reflects the gradual lengthening of days that began in spring, as daylight steadily progressed from just 10 hours in January to 13 hours by May. Following the vibrant month of June, daylight begins to taper off again, with July and August bringing slightly shorter days. This seasonal rhythm highlights Koshima's transition from the cozy, low-light winter months to the bright, sun-filled days of summer, creating a perfect backdrop for outdoor activities and festivals under the warm June sun.
In Koshima, Japan, the month of June experiences a gentle shift in wind patterns, with an average speed of 6.3 m/s (14 mph), marking a notable decline from the breezier conditions of the spring months. Following May's stronger winds at 6.6 m/s (15 mph), June ushers in a tranquil phase, presenting the calm before the summer's rise in wind activity. As the seasons transition, the wind speed gradually climbs again in July to 7.6 m/s (17 mph), suggesting that the lush landscapes of Koshima are not only transformed by the balmy weather but also by the whisper of summer's return. This pattern highlights a seasonal ebb and flow, creating a delightful outdoor experience for both locals and visitors.
Weather in Koshima varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Koshima, focusing on differences in temperature, rainfall, humidity, and UV levels.
June and January present stark contrasts in weather conditions. June boasts warmer temperatures, with a minimum of 19°C (67°F) and an average of 24°C (76°F), peaking at 27°C (81°F). This month also experiences significant rainfall, totaling 491 mm (19.3 in) over 19 days, accompanied by high humidity levels of 86%. In contrast, January is much cooler, featuring a minimum temperature of 6°C (44°F) and an average of 14°C (57°F), with a maximum of 21°C (70°F). Precipitation is notably lower in January, at 108 mm (4.2 in) over just 12 days, and the humidity is more moderate at 72%. For a more detailed look at January’s climate, visit Koshima weather in January.
The weather in June is significantly warmer and more humid compared to February. With average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), June experiences an average of 24°C (76°F), while February's temperatures are cooler, averaging 14°C (57°F) with a range from 7°C (44°F) to 21°C (70°F). Additionally, June is much wetter, with 491 mm (19.3 in) of precipitation spread over 19 days, compared to February's 157 mm (6.2 in) over 16 days. The humidity in June is also notably higher at 86%, compared to February's 68%. For more details about February weather, you can check Koshima weather in February.
June weather in Koshima is marked by higher temperatures, with a minimum of 19°C (67°F) and an average temperature of 24°C (76°F), peaking at 27°C (81°F). In contrast, March presents a cooler climate, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 22°C (72°F) and an average of 16°C (62°F). Additionally, June experiences significantly more rainfall, totaling 491 mm (19.3 in) over 19 days, compared to March's 213 mm (8.4 in) spread over 16 days. The humidity also rises in June, averaging at 86% versus March's 72%. For more details on March weather, visit Koshima weather in March.
June experiences warmer temperatures compared to April, with minimums reaching 19°C (67°F) and average highs of 27°C (81°F), contrasted with April's minimum of 12°C (53°F) and maximum of 24°C (75°F). Additionally, June is significantly wetter, with 491 mm (19.3 in) of precipitation over 19 days, while April sees only 186 mm (7.3 in) across 12 days. The humidity also rises in June, averaging 86%, compared to 79% in April. For more detailed information, you can check Koshima weather in April.
In comparing the weather between June and May, June tends to be warmer and wetter. June has a minimum temperature of 19°C (67°F) and an average temperature of 24°C (76°F), while May's temperatures range from a minimum of 16°C (61°F) to an average of 22°C (71°F). Additionally, June experiences significantly higher precipitation with 491 mm (19.3 in) over 19 days, compared to May’s 273 mm (10.7 in) across 13 days. The humidity also rises slightly in June, reaching 86%, compared to 83% in May. For a closer look at May's weather specifics, you can visit Koshima weather in May.
June and July present notable differences in weather patterns. June typically features cooler temperatures, with a minimum of 19°C (67°F) and an average of 24°C (76°F), alongside significant rainfall amounting to 491 mm (19.3 in) over 19 days, contributing to a high humidity level of 86%. In contrast, July warms up, with minimum temperatures reaching 23°C (73°F) and an average of 27°C (81°F), peaking at 30°C (86°F). Rainfall decreases to 281 mm (11.0 in) over 17 days, but humidity rises slightly to 90%. For more details, check out this information Koshima weather in July.
June and August present distinct weather patterns, showcasing a transition from early summer to the peak of the season. In June, temperatures range from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), with an average temperature of 24°C (76°F). However, June experiences heavy rainfall, accumulating 491 mm (19.3 in) over 19 days, resulting in high humidity levels at 86%.
In contrast, August is warmer, with temperatures starting at a minimum of 24°C (76°F) and reaching a maximum of 30°C (86°F), averaging 28°C (82°F). Additionally, precipitation drops significantly to 214 mm (8.4 in) over 16 days, while humidity remains relatively stable at 85%. This comparison highlights that while both months are humid, August tends to be drier and warmer. For more specific details about August weather, you can visit Koshima weather in August.
June and September present distinct weather characteristics, making each month unique. In June, temperatures typically range from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), with an average of 24°C (76°F). This month is marked by significant rainfall, accumulating 491 mm (19.3 in) over 19 days, coupled with high humidity levels at 86%. In contrast, September enjoys slightly warmer temperatures, with a minimum of 22°C (72°F), an average of 27°C (80°F), and a peak of 29°C (84°F). Rainfall in September is considerably lower, totaling 256 mm (10.1 in) over just 20 days, and humidity decreases slightly to 80%. For more details on the weather in September, you can visit Koshima weather in September.
June and October exhibit fairly similar temperature ranges, with both months showcasing minimum temperatures around 18°C to 19°C and maximums peaking at 27°C. However, June stands out with much higher average precipitation, measuring 491 mm over 19 days compared to October's 164 mm over just 13 days. This leads to heightened humidity levels in June at 86%, while October experiences a more comfortable 78% humidity. For further details on October's climate, you can visit Koshima weather in October.
In June, the weather is noticeably warmer and more humid, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), and a high precipitation level of 491 mm (19.3 in) over 19 days. This month also experiences a humidity level of 86%, making it feel quite muggy. In contrast, November sees cooler temperatures, with an average ranging from 13°C (56°F) to 25°C (78°F) and significantly lower precipitation at 150 mm (5.9 in) spread over 13 days. The humidity also decreases to 76%, contributing to a more comfortable climate. For more details on November weather, visit Koshima weather in November.
In June, the weather is notably warmer and more humid, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), accompanied by high humidity levels of 86%. This month sees significant rainfall, with about 491 mm (19.3 in) spread over 19 days, making it one of the wettest periods of the year. In contrast, December brings much cooler temperatures, with an average ranging from a minimum of 8°C (46°F) to a maximum of 24°C (75°F). Precipitation is also lower in December, totaling 132 mm (5.2 in) over 14 days, and humidity decreases to 74%. For more specific details, you can check Koshima weather in December.
As June rolls into Koshima, the weather showcases a unique blend of warmth and humidity, setting it apart from other months. With average temperatures hovering around 24°C (76°F) and a maximum reaching up to 27°C (81°F), the days are pleasantly warm, ideal for outdoor activities. However, this month also brings considerable rainfall, with frequent precipitation on nearly two-thirds of the days, nurturing the lush landscape while balancing the humidity levels at a hefty 86%. This distinct combination of warmth and moisture not only enhances the region's vibrant flora but also marks a noticeable shift from the drier, cooler spring months. For more details on the climate throughout the year, visit Koshima Climate.