Last updated: August 21, 2025
In Koshima, Japan, the weather during August presents a warm and humid atmosphere, with average temperatures hovering around 28°C (82°F). Daytime highs can reach up to 30°C (86°F), creating a sultry feel, while evening lows dip to a comfortable 24°C (76°F). This month is characterized by substantial rainfall, accumulating to 214 mm (8.4 in) over approximately 16 days, leading to a humidity level of about 85%. Visitors can expect a mix of sunny spells and occasional showers, perfect for experiencing the lush landscapes that thrive in this tropical climate.
In August, Koshima, Japan experiences its warmest temperatures of the year, with minimums around 24°C (76°F) and averages peaking at 28°C (82°F). This month marks a notable shift from the cooler temperatures of earlier months, as the heat intensifies, reaching maximums of 30°C (86°F). Embracing summer's full bloom, the city showcases a vibrant atmosphere, perfect for outdoor adventures and cultural festivities. As August transitions into September, temperatures do gradually begin to cool, with a slight dip to average highs of 27°C (80°F), signaling the approach of fall while still retaining a warm and lively summer charm.
In August, Koshima experiences a notable shift in precipitation patterns, receiving 214 mm (8.4 in) of rain over 16 days. This amount represents a decrease from the preceding month of July, which recorded a substantial 281 mm (11.0 in), yet remains significantly higher than the drier months at the beginning and end of the year. The summer rains typically peak in June, with a staggering 491 mm (19.3 in), but August still enjoys a healthy share of moisture, contributing to the lush scenery of this Japanese locale. With an average of 16 rainy days, August sustains the rhythm of the previous months, ensuring that Koshima's vibrant landscapes remain nourished even as the season begins to transition into autumn. Overall, while the precipitation tapers slightly in August, it continues to uphold the region's rich ecological tapestry.
In Koshima, Japan, August is marked by a notable humidity level of 85%, which reflects the lingering warmth of summer. As the year progresses, humidity tends to rise significantly, peaking in July at 90%, before slightly decreasing in August. The trend showcases a gradual increase from 72% in January to a striking 86% in June, revealing a steady climb as temperatures rise. Following August, a gradual decline ushers in the more temperate months of fall, with September showing a humidity drop to 80%. This seasonal ebb and flow of humidity not only influences the local climate but also shapes the lush, vibrant landscapes Koshima is known for.
In Koshima, Japan, August sees a peak UV Index of 13, categorizing the sun exposure as extreme with a burn time of just 10 minutes. This pattern of high UV levels is consistent throughout the summer months, as both July and August share the same intense rating. Following the sun-soaked summer, September shows a decrease to an index of 11, indicating a return to extreme conditions, while the trend gradually shifts to very high by October. As the year progresses, UV exposure drastically decreases, with January and December experiencing much more moderate levels. It’s crucial for residents and visitors alike to stay vigilant during these summer months and protect themselves accordingly. For more information on seasonal UV variations, visit Koshima UV Index.
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August in Koshima, Japan, bursts forth with radiant sunshine, boasting an impressive 319 hours of sunlight, marking it as the sunniest month of the year. Following a steady climb from 164 hours in January, the sunshine hours see a remarkable ascent, peaking in August after July's 302 hours. The summer months from May to August reflect a joyful trend of increasing daylight, creating the perfect backdrop for outdoor adventures and cultural festivities. Although September experiences a slight decline to 284 hours, the overall pattern showcases Koshima's delightful summer season, making it a vibrant time of year filled with warmth and light.
In Koshima, Japan, August stands out with a 38% chance of sunny weather, tying with February for one of the sunniest months of the year. This notable increase follows a dip in June and July, where sunshine was notably limited at 17% and 26%, respectively. Interestingly, the trend shows that as summer progresses, the likelihood of clear skies improves, with September reaching an even brighter 46%. This pattern highlights that while August may not be the sunniest month, it offers a delightful transition into more favorable weather conditions, making it an appealing time for sun-seekers.
August in Koshima, Japan, brings a harmonious blend of warmth and light, with 13 hours of daylight that beautifully extend the sun-soaked days of summer. Following a peak in June, when daylight reaches its maximum at 14 hours, the summer months gradually transition into fall, with August maintaining the lively glow experienced in July. This steady duration signals a shift as daylight begins to wane in September, cascading down to 10 hours by December. Overall, August stands as a vibrant midpoint, encapsulating the essence of summer while hinting at the approaching change of seasons.
In Koshima, Japan, the August wind brings a gentle breeze with an average speed of 7.2 m/s (16 mph), slightly less vigorous than the previous months. This decline marks a notable shift from the more robust winds of January through April, which consistently hover above 8 m/s. With June and July recording even milder winds, the late summer in Koshima becomes a reprieve from the earlier gales, creating a unique ambiance perfect for outdoor activities. As autumn approaches in September, wind speeds dip further to 5.8 m/s (13 mph), indicating a gradual transition towards the calmer months ahead. Overall, August reflects a gentle winding down of the summer winds, making way for the cozy, tranquil breezes of fall.
Weather in Koshima varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Koshima, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in August is notably warmer and more humid than in January. With average temperatures reaching 28°C (82°F) and a maximum of 30°C (86°F), August experiences a significant increase in warmth, while January's average temperature hovers around a cooler 14°C (57°F) with a maximum of 21°C (70°F). Additionally, August sees substantial rainfall, totaling 214 mm (8.4 in) over 16 days, compared to January's 108 mm (4.2 in) across 12 days. The humidity in August is also higher at 85%, while January maintains a more comfortable 72%. For more detailed insights, you can visit Koshima weather in January.
In August, the weather is hot and humid, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), averaging around 28°C (82°F). This month experiences significant rainfall, with 214 mm (8.4 in) over 16 days and humidity levels peaking at 85%. In contrast, February brings a much cooler climate, featuring temperatures that range from a chilly 7°C (44°F) to a moderate 21°C (70°F), with an average of 14°C (57°F). While February also sees 16 days of precipitation, it totals 157 mm (6.2 in) and has a lower humidity level of 68%. For more details on Koshima's February weather, you can visit Koshima weather in February.
August and March present distinct weather patterns, highlighting the transition from summer to spring. In August, temperatures are considerably warmer, with averages around 28°C (82°F) and maximums reaching 30°C (86°F), accompanied by high humidity at 85%. The month experiences notable precipitation, with 214 mm (8.4 in) spread over 16 days. In contrast, March features milder temperatures, averaging 16°C (62°F) with highs of 22°C (72°F) and a minimum of 10°C (51°F). While March also has similar precipitation levels at 213 mm (8.4 in) over 16 days, the humidity is lower at 72%. For those interested in detailed weather specifics, Koshima weather in March provides further insights.
When comparing the weather in August to that in April, notable differences emerge. August generally experiences warmer temperatures, with a minimum of 24°C (76°F) and an average of 28°C (82°F), peaking at 30°C (86°F). In contrast, April’s temperatures are much cooler, ranging from a minimum of 12°C (53°F) to an average of 19°C (66°F), and maxing out at 24°C (75°F).
In terms of precipitation, August sees more rainfall, totaling 214 mm (8.4 in) over 16 days, while April has slightly less precipitation at 186 mm (7.3 in) across 12 days. Additionally, humidity levels are higher in August at 85% compared to 79% in April. For a more detailed understanding of April's weather, you can refer to Koshima weather in April.
In comparing the weather conditions of August and May, August presents warmer temperatures, with a minimum of 24°C (76°F) and an average high of 30°C (86°F). In contrast, May is cooler, ranging from a minimum of 16°C (61°F) to a maximum of 26°C (78°F). While August typically experiences 214 mm (8.4 in) of rainfall over 16 days, May sees more precipitation at 273 mm (10.7 in) across 13 days. Humidity levels are slightly higher in August at 85%, compared to 83% in May. For more detailed information on May weather patterns, you can check Koshima weather in May.
When comparing the weather in August to that of June, it's evident that August generally experiences warmer temperatures, with minimums of 24°C (76°F) and average highs reaching 30°C (86°F). In contrast, June's temperatures range from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), making it cooler overall. However, June sees significantly higher precipitation, with 491 mm (19.3 in) over 19 days compared to 214 mm (8.4 in) over 16 days in August. Humidity levels remain consistent, with August at 85% and June slightly higher at 86%. For more detailed information on June weather, you can visit Koshima weather in June.
In comparing the weather between July and August, we see that August experiences slightly warmer temperatures with a minimum of 24°C (76°F) and an average of 28°C (82°F), while July has a minimum of 23°C (73°F) and an average of 27°C (81°F). Both months reach a maximum of 30°C (86°F), indicating consistent heat. However, August is notably drier than July, receiving only 214 mm (8.4 in) of precipitation over 16 days compared to July's 281 mm (11.0 in) across 17 days. Additionally, August tends to be a bit less humid at 85%, compared to July’s higher humidity level of 90%. For more details, you can check Koshima weather in July.
In comparing the weather of August and September, August typically experiences slightly higher temperatures, with an average of 28°C (82°F) compared to September's 27°C (80°F). While both months are characterized by high humidity, August records a higher humidity level at 85%, whereas September's humidity is around 80%. Precipitation also increases in September, with a total of 256 mm (10.1 in) over 20 days, compared to 214 mm (8.4 in) over 16 days in August. For more detailed information, you can check Koshima weather in September.
August weather is characterized by higher temperatures, with minimums around 24°C (76°F) and an average of 28°C (82°F), reaching up to 30°C (86°F). This month experiences significant rainfall, totaling 214 mm (8.4 in) over approximately 16 days, alongside high humidity levels at 85%. In contrast, October sees milder conditions, with minimum temperatures dropping to 18°C (65°F) and an average of 24°C (75°F), peaking at 27°C (81°F). There is also less rainfall in October, totaling 164 mm (6.4 in) over 13 days, and a slightly lower humidity of 78%. For more detailed insights into the October weather, check out Koshima weather in October.
August and November present quite distinct weather patterns. In August, temperatures are significantly warmer, with minimums around 24°C (76°F) and averages reaching 28°C (82°F), peaking at 30°C (86°F). This month is characterized by high humidity levels at 85% and substantial rainfall, totaling 214 mm (8.4 in) over 16 days. In contrast, November brings cooler temperatures, with a minimum of 13°C (56°F) and an average of 20°C (68°F), culminating in a maximum of 25°C (78°F). Rainfall decreases to 150 mm (5.9 in) over just 13 days, and humidity drops to 76%. For a more detailed look at the weather in November, visit Koshima weather in November.
In August, the weather is characterized by warm temperatures, with an average of 28°C (82°F) and a peak of 30°C (86°F). The month experiences considerable rainfall, with 214 mm (8.4 in) spread over 16 days and high humidity at 85%. In contrast, December offers a much cooler climate, with a minimum temperature of 8°C (46°F) and an average temperature of 16°C (61°F), peaking at 24°C (75°F). Precipitation is lower at 132 mm (5.2 in) over 14 days, and humidity decreases to 74%. For more detailed insights into December weather, check out Koshima weather in December.
As summer peaks in August, Koshima experiences a warm and humid climate that sets it apart from the cooler months of the year. With average temperatures hovering around a balmy 28°C (82°F) and frequent rainfall, this month sees a vibrant blend of heat and moisture. Frequent precipitation, marked by around 16 days of rain, contributes to the lush greenery that characterizes the region. Travelers can expect to embrace the tropical warmth while navigating the occasional downpour. For those looking to delve deeper into the overall climate patterns of Koshima, explore more at Koshima Climate.