August Weather in Kirishima, Japan

Last updated: August 21, 2025

In August, Kirishima, Japan, experiences a dynamic climate, characterized by a maximum temperature reaching 36°C (98°F) and an average of 27°C (82°F), creating a warm, inviting atmosphere. The cool evenings bring a refreshing minimum of 20°C (68°F), making it a pleasant time for outdoor activities. However, the month witnesses significant precipitation, with 204 mm (8.0 in) falling over 18 days, contributing to a lush landscape. Coupled with an impressive humidity level of 85%, this period encapsulates the vibrant and diverse natural beauty of Kirishima, urging visitors to embrace the exhilarating interplay of heat and rain.

August Temperature in Kirishima

In Kirishima, Japan, August ushers in the height of summer with temperatures that reflect a vibrant climate. The month starts with a comfortable minimum of 20°C (68°F), while the average climbs to a warm 27°C (82°F), peaking at a sultry 36°C (98°F). This pattern marks a significant departure from the cooler months, with temperatures showing a striking upward trend since June. The warmth invites a lively atmosphere, making it the ideal time for outdoor activities and enjoying the region's natural beauty. As the summer progresses, Kirishima's climate becomes both a captivating contrast to the crisp winter months and a testament to Japan's diverse weather patterns.

August Weather in Kirishima: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Kirishima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kirishima, August typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec444653606773798177685747
Data source: Temperature data for Kirishima generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Kirishima

In August, Kirishima experiences a notable shift in precipitation patterns, receiving 204 mm (8.0 in) of rainfall over 18 days. While this is a decrease from the torrential rains of July, which brought 406 mm (16.0 in) across 23 days, August still maintains a significant level of moisture that contributes to the region's lush landscapes. As the summer transitions to autumn, the damp conditions persist, with precipitation in August being higher than in earlier months like January and February, yet notably less than the peak summer months of June and July. This pattern illustrates a gradual tapering of the intense rainfall, setting the stage for a vibrant, albeit slightly drier, fall season ahead.

August Precipitation Trends in Kirishima

The chart displays monthly precipitation patterns in Kirishima, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Kirishima, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec541011691492523924062042481439179
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Kirishima

In August, Kirishima, Japan, experiences a notable humidity level of 85%, forming part of a consistently humid summer pattern. Following a gradual increase from 72% in January to a peak of 90% in July, August brings a slight reprieve with reduced moisture in the air, though it still remains quite high compared to the earlier months of the year. As the summer transitions into autumn, the humidity begins to decline, falling to 80% in September. This trend underscores the region's tropical climate, where high humidity is prevalent during the warmer months, creating a lush, vibrant environment that define Kirishima's unique landscape.

August Average Humidity in Kirishima

This chart illustrates the average monthly humidity levels in Kirishima, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Kirishima is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%68%72%79%83%86%90%85%80%78%76%75%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Kirishima

In Kirishima, Japan, the UV Index experiences a significant rise during the summer months, peaking at an extreme level of 13 in August. This increase is part of a broader trend, as the region sees high to extreme UV levels from May through September, with burn times shrinking to just 10 minutes during this peak. Notably, both June and July maintain a steady UV Index of 12, before transitioning to a slightly lower yet still extreme level in September. Conversely, the winter months of January and December exhibit much milder conditions, with a moderate UV Index of 5, allowing for much longer burn times of 30 minutes. As visitors and locals enjoy the vibrant summer, it’s essential to stay sun-safe and be aware of these rising UV risks. For more detailed information, check out Kirishima UV Index.

Maximum UV Index Levels in Kirishima for August

The chart shows the monthly maximum UV Index (UVI) for Kirishima in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Kirishima typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5610101212121311865
Data source: Kirishima August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Kirishima

August in Kirishima, Japan, shines with an impressive 311 hours of sunshine, marking it as the sunniest month of the year. The trend reveals a gradual increase in daylight, beginning with 196 hours in January and steadily climbing through the spring. As the year progresses, the sun's embrace becomes more robust, peaking in August before gracefully yielding to slightly lesser hours in September. This consistent rise in sunshine hours illustrates the vibrant summer days that characterize Kirishima, inviting both residents and visitors to bask in the glow of these warm, sunlit moments. The contrast from the brighter summer to the more subdued daylight of late autumn underscores the beauty of Kirishima’s seasonal transition, making these sun-soaked days all the more precious.

Monthly Sunshine Duration in Kirishima: August Highlighted

The August sunshine duration represents the total number of hours Kirishima experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec196h234h268h289h279h249h279h311h270h263h245h232h
Data source: Kirishima August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kirishima During August

In Kirishima, Japan, the likelihood of experiencing sunny weather in August stands at 25%, which is a modest increase compared to the notably gray months of June and July, each with just 16% sunshine. This slight uptick in sun can offer a welcome respite during the summer, though it remains on the lower side when compared to the sunnier later months of October (55%) and November (51%). Notably, as summer transitions to autumn, the chances of sunny days increase significantly, suggesting that while August may not be the brightest month, the promise of clearer skies is just around the corner.

Percentage of Sunny Days in August in Kirishima

The chart illustrates the percentage of sunny days in Kirishima throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Kirishima experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%44%36%35%23%16%16%25%34%55%51%56%
Data source: Kirishima August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kirishima in August

In Kirishima, Japan, August enjoys about 13 hours of daylight, mirroring the vibrant light of July. This peak summer month stands out in a year characterized by a gradual increase in daylight from January’s 10 hours to a high of 14 hours in June. Following the sunny August days, daylight begins to wane slightly, transitioning into the softer light of September. This seasonal rhythm showcases the dynamic interplay between light and nature, allowing both locals and visitors to savor the long summer evenings before the shorter days of autumn set in.

Average Daylight Hours in Kirishima for August

The chart illustrates the variation in daylight duration in Kirishima throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 19m11h 2m11h 58m12h 57m13h 46m14h 10m13h 58m13h 15m12h 20m11h 22m10h 31m10h 6m
Data source: Kirishima daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Kirishima

In Kirishima, Japan, the August wind whispers gently through the landscape, with an average speed of 2.2 m/s (5 mph). This light breeze is characteristic of the region during the summer months, where the winds tend to be calmer than in the transitions to winter. Following a slight peak in February at 3.0 m/s (7 mph), the wind speeds gradually decline through the warmer months of June and July, before holding steady into August. Interestingly, the wind does pick up again as the seasons change, rising to 2.6 m/s (6 mph) in December. Overall, the trend points to a mild, tranquil atmosphere during August, making it a perfect time to enjoy the scenic beauty of Kirishima while feeling the soft caress of the wind.

Average August Wind Speed in Kirishima

The chart displays monthly wind speed patterns in Kirishima, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.33.02.22.52.21.82.32.2 m/s1.91.92.32.6
Data source: Kirishima August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Kirishima Compares to Other Months

Weather in Kirishima varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Kirishima, focusing on differences in temperature, rainfall, humidity, and UV levels.

August and January present starkly contrasting weather conditions. In August, temperatures soar with a minimum of 20°C (68°F) and an average high of 36°C (98°F), accompanied by high humidity levels at 85%. This month is also marked by significant rainfall, receiving 204 mm (8.0 in) over 18 days, creating a tropical atmosphere. In contrast, January experiences much cooler temperatures, ranging from a minimum of -5°C (23°F) to an average of 7°C (44°F) and a maximum of 20°C (68°F). Additionally, January sees considerably less precipitation, totaling only 54 mm (2.1 in) over just 6 days, with lower humidity at 72%. For more detailed insights into January weather, you can check Kirishima weather in January.

August and February present stark contrasts in weather. In August, temperatures soar with a minimum of 20°C (68°F) and an average of 27°C (82°F), peaking at a scorching 36°C (98°F). High humidity levels at 85% combined with significant rainfall of 204 mm (8.0 in) over 18 days create a sultry atmosphere. In contrast, February brings a chill, featuring a minimum of -4°C (26°F) and a much cooler average of 8°C (46°F), with highs reaching 21°C (70°F). The precipitation is also lighter, at 101 mm (4.0 in) over 10 days, and humidity sits at a more refreshing 68%. For more information on February conditions, check out this link: Kirishima weather in February.

The weather in August contrasts significantly with that in March. In August, temperatures range from a minimum of 20°C (68°F) to a scorching maximum of 36°C (98°F), with an average temperature of 27°C (82°F). This month also sees high humidity levels at 85% and substantial precipitation, totaling 204 mm (8.0 in) over 18 days. In contrast, March offers a much cooler climate, with temperatures spanning from a chilly 0°C (32°F) to a pleasant maximum of 24°C (75°F) and an average of 12°C (54°F). Precipitation in March is lower at 169 mm (6.6 in) over just 13 days, accompanied by a reduced humidity level of 72%. For more detailed insights on March weather, you can visit Kirishima weather in March.

In comparing the weather between August and April, it's clear that they offer strikingly different climates. August boasts significantly warmer temperatures, with averages around 27°C (82°F) and maximums reaching up to 36°C (98°F), while April is much cooler, averaging only 16°C (60°F) and peaking at 28°C (82°F). The humidity in August is notably high at 85%, contributing to a muggy atmosphere, whereas April's humidity is slightly lower at 79%. In terms of precipitation, August experiences a wetter season with 204 mm (8.0 in) over 18 days, compared to April's 149 mm (5.9 in) spread over just 10 days, making April a generally drier month. For more detailed information, you can check Kirishima weather in April.

In August, temperatures soar with minimums around 20°C (68°F) and maximums reaching a sweltering 36°C (98°F), averaging 27°C (82°F). The month is marked by high humidity at 85%, along with considerable rainfall of 204 mm (8.0 in) spread across 18 days. In contrast, May offers a much cooler climate, with minimum temperatures of 6°C (42°F) and maximums of 31°C (88°F), averaging a pleasant 20°C (68°F). Although May experiences slightly higher precipitation at 252 mm (9.9 in) over 12 days, the humidity remains lower at 83%. For a closer look at May weather specifics, you can visit Kirishima weather in May.

When comparing the weather in August and June, several distinct differences emerge. August tends to be hotter, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 36°C (98°F) and an average of 27°C (82°F). In contrast, June is cooler, featuring minimum temperatures of 14°C (57°F) and maximum temperatures of 31°C (89°F), with an average of 23°C (73°F). Interestingly, June experiences significantly higher precipitation, totaling 392 mm (15.4 in) over 19 days, compared to August's 204 mm (8.0 in) over 18 days. Both months have high humidity levels, with June at 86% and August at 85%. For more detailed insights about June weather, you can visit Kirishima weather in June.

In comparing the weather of July and August, August generally presents warmer temperatures, with a minimum of 20°C (68°F), an average of 27°C (82°F), and a maximum of 36°C (98°F), compared to July's minimum of 17°C (63°F), average of 26°C (80°F), and maximum of 34°C (94°F). However, August experiences significantly less rainfall, with 204 mm (8.0 in) over 18 days, while July has a much wetter climate, recording 406 mm (16.0 in) over 23 days. The humidity in both months is high, but July's humidity level is slightly higher at 90% compared to August's 85%. For more detailed insights on July weather, you can visit Kirishima weather in July.

August typically experiences warmer weather compared to September, with minimum temperatures around 20°C (68°F) and an average of 27°C (82°F), peaking at a sweltering 36°C (98°F). In contrast, September sees cooler temperatures, with lows of 14°C (57°F) and an average of 25°C (77°F), reaching a maximum of 33°C (91°F). Additionally, while August has substantial rainfall of 204 mm (8.0 in) over 18 days, September's precipitation rises slightly to 248 mm (9.8 in), also over 18 days, accompanied by a marginally lower humidity level of 80%. For more details on the weather conditions during this month, you can visit Kirishima weather in September.

In August, the weather is characterized by high temperatures, with a minimum of 20°C (68°F), an average of 27°C (82°F), and a maximum reaching 36°C (98°F). This month also experiences substantial rainfall, totaling 204 mm (8.0 in) over 18 days, accompanied by high humidity levels of around 85%. In contrast, October brings milder temperatures, with a minimum of 7°C (45°F), an average of 20°C (68°F), and a maximum of 31°C (87°F). Precipitation decreases to 143 mm (5.6 in) over just 10 days, while humidity lowers slightly to 78%. For more specifics on the October weather in the region, check out Kirishima weather in October.

August and November present stark contrasts in weather conditions. In August, temperatures soar with a minimum of 20°C (68°F) and an average peak of 27°C (82°F), often reaching as high as 36°C (98°F). This month is characterized by high humidity at 85%, along with substantial rainfall, accumulating to 204 mm (8.0 in) over 18 days. In contrast, November experiences a significant drop in temperatures, ranging from a chilly minimum of -1°C (31°F) to a pleasant average of 14°C (57°F) and a high of 25°C (77°F). Precipitation is also reduced significantly, totaling just 91 mm (3.6 in) over approximately 8 days, with humidity levels at a more comfortable 76%. For a detailed look at the weather patterns specific to this month, you can visit Kirishima weather in November.

August and December present strikingly contrasting weather conditions. In August, temperatures soar with a minimum of 20°C (68°F) and can peak at a sweltering 36°C (98°F), accompanied by high humidity levels of 85%. Rain is frequent, with 204 mm (8.0 in) of precipitation over 18 days. In stark contrast, December experiences much cooler temperatures, starting at a minimum of -2°C (28°F) and averaging around 8°C (47°F), reaching a maximum of 24°C (75°F). Precipitation is also significantly reduced, with only 79 mm (3.1 in) falling over just 7 days, and humidity dropping to 74%. For more details on December weather, you can visit Kirishima weather in December.

Compare Kirishima's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Kirishima

As summer reaches its peak, August in Kirishima showcases a vibrant contrast to other months, marked by warm temperatures and higher humidity levels. The sweltering days often see the mercury rise, inviting sultry afternoons that feel more intense amid the lush landscapes. While the frequent rainfalls—occurring on nearly 18 days—add a refreshing twist to the warm weather, they also contribute to the region's lush vegetation. This unique combination of heat and humidity sets August apart, making it an exhilarating yet challenging time for visitors and locals alike. For those curious about the broader weather patterns throughout the year, more insights can be found at Kirishima Climate.