August Weather in Ashikaga, Japan

Last updated: August 21, 2025

August in Ashikaga, Japan presents a warm and humid climate, with temperatures reaching a maximum of 37°C (98°F) and an average of 27°C (82°F), while dropping to a minimum of 16°C (61°F) during cooler nights. This month is characterized by significant precipitation, totaling 163 mm (6.4 in) across approximately 17 days, contributing to the area's lush greenery. With humidity levels soaring to 92%, visitors and residents alike can expect a mix of sweltering heat and frequent summer showers, ideal for those who appreciate the vibrant natural beauty of Japan in full bloom.

August Temperature in Ashikaga

In August, Ashikaga, Japan, experiences warm and humid conditions, with temperatures ranging from a minimum of 16°C (61°F) to a sweltering maximum of 37°C (98°F). The average temperature settles at a comfortable 27°C (82°F), making it one of the hottest months of the year. This rise in temperature follows a trend established in the earlier summer months, particularly July, which similarly showcases high maximums. The heat of August not only marks the peak of summer but also transitions into the milder temperatures of early September, as the temperatures begin to cool down while still remaining enjoyable. Overall, August offers a vibrant atmosphere, ideal for enjoying outdoor activities in the lush landscapes surrounding Ashikaga.

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

The chart illustrates August temperature patterns in Ashikaga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ashikaga, 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).
JanFebMarAprMayJunJulAugSepOctNovDec394149566672788173645343
Data source: Temperature data for Ashikaga 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 Ashikaga

In August, Ashikaga experiences a significant continuation of the summer rainy season, with precipitation reaching 163 mm (6.4 in) over the course of 17 days. This marks a noticeable dip from the previous month of July, which recorded a hefty 274 mm (10.8 in), yet remains consistent with the city's overall trend of heightened rainfall as the seasons transition. The peak rainy months, June through September, are characterized by lush greenery and vibrant landscapes, reflecting the region's humid climate. This August rainfall supports not only the beautiful scenery but also local agriculture, making the rhythm of Ashikaga's monthly precipitation vital to its environment and culture.

August Precipitation Trends in Ashikaga

The chart displays monthly precipitation patterns in Ashikaga, 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 Ashikaga, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec40421291271371752741632132675745
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Ashikaga

In August, Ashikaga experiences a peak in humidity, maintaining a high level of 92%, similar to the previous month of July. This trend highlights the region's muggy summer climate, where the air retains a substantial amount of moisture, making for a sticky atmosphere. The moisture levels begin to dip slightly as autumn approaches, with September showing a decrease to 89%. Throughout the year, humidity in Ashikaga follows an overall pattern, featuring higher levels in the summer months of June, July, and August, while cooler months, like April and May, see a refreshing decline. Whether sweltering in the summer or enjoying the crisp fall air, residents and visitors alike can feel the clear impact of humidity on their experience in this vibrant city.

August Average Humidity in Ashikaga

This chart illustrates the average monthly humidity levels in Ashikaga, 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 Ashikaga is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%79%81%88%92%92%89%87%85%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Ashikaga

In August, Ashikaga, Japan experiences a UV Index of 10, placing it in the very high exposure category. This indicates a continued emphasis on sun safety, especially compared to previous months, with a burn time of just 15 minutes. Following the peak of 11 in both June and July, August maintains high UV levels, emphasizing the region's need for protective measures during summer. As fall begins, the UV Index gradually decreases, starting a downward trend into September, where it drops to 9. Understanding these patterns is crucial for residents and visitors alike to enjoy the sun safely. For more detailed insights, you can check the Ashikaga UV Index.

Maximum UV Index Levels in Ashikaga for August

The chart shows the monthly maximum UV Index (UVI) for Ashikaga 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 Ashikaga typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109653
Data source: Ashikaga 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 Ashikaga

In August, Ashikaga, Japan, basks in an impressive 269 hours of sunshine, continuing the summer trend of ample daylight that peaks in the warmer months. This month enjoys more sunlight than the preceding July (227 hours), showcasing a lively atmosphere just before the gradual decline that starts in September with only 224 hours. The data reveals a clear pattern: as the year progresses from the cold of January with just 190 hours to the blossoming days of spring and summer, sunlight hours steadily increase, peaking in late spring and summer months. By May and June, residents enjoy their highest solar exposure, setting a vibrant scene prior to the subtle shift into autumn. Overall, August stands as a delightful gateway between the zenith of summer and the approaching fall, embracing longer days that fuel both nature and local life.

Monthly Sunshine Duration in Ashikaga: August Highlighted

The August sunshine duration represents the total number of hours Ashikaga 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.
JanFebMarAprMayJunJulAugSepOctNovDec190h238h264h277h278h262h227h269h224h207h232h231h
Data source: Ashikaga August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ashikaga During August

In August, the likelihood of basking in the sun in Ashikaga, Japan, stands at a modest 27%, reflecting a notable dip in sunshine compared to the earlier months of the year. After experiencing promising percentages in January and February, which peak at 55% and 73% respectively, the chance of sunny days experiences a decline, particularly through the summer months. Both June and July only offer 20% and 25% chances, creating a trend where August continues this pattern of diminished sun exposure. As the region transitions toward the auto of autumn, sun-seekers might find greater hope in October, which rises to 48%. Thus, while August may not be the brightest month, it sets the stage for the gradual return of sunnier days in the months that follow.

Percentage of Sunny Days in August in Ashikaga

The chart illustrates the percentage of sunny days in Ashikaga 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 Ashikaga experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%73%43%50%25%20%25%27%25%48%63%70%
Data source: Ashikaga August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ashikaga in August

In August, Ashikaga enjoys a generous 13 hours of daylight, a slight decrease from the long, sun-drenched days of summer months. This seasonal shift reflects a gradual transition as the vibrant days of July, which boasts the maximum 14 hours of sunshine, begin to wane. The pattern of daylight hours reveals a strong ebb and flow throughout the year, starting from 9 hours in January and peaking in the summer months before tapering off towards autumn. As daylight diminishes into September, when it slips to 12 hours, residents sense the impending welcome of cooler days, illustrating how Ashikaga's daylight durations beautifully mirror the rhythms of nature.

Average Daylight Hours in Ashikaga for August

The chart illustrates the variation in daylight duration in Ashikaga throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 58m10h 50m11h 57m13h 7m14h 5m14h 34m14h 20m13h 29m12h 22m11h 14m10h 14m9h 43m
Data source: Ashikaga daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Ashikaga

In Ashikaga, Japan, the August winds present a gentle respite, with an average speed of 1.9 m/s (4 mph). This marks a slight uptick from the July lull, which recorded the lowest winds of the year at 1.5 m/s (3 mph). The summer months generally experience subdued breezes, with June and July showcasing a gradual decrease, creating a contrasting calm before the autumn's return to slightly brisker conditions in September and October. Overall, August's winds reflect a stable trend of light air, setting the stage for the seasonal transitions ahead while still allowing for those serene summer days.

Average August Wind Speed in Ashikaga

The chart displays monthly wind speed patterns in Ashikaga, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.82.52.42.11.81.51.9 m/s1.61.91.72.3
Data source: Ashikaga August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Ashikaga Compares to Other Months

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

August and January present starkly contrasting weather patterns. In August, temperatures soar, with averages reaching a balmy 27°C (82°F) and maximums peaking at a sweltering 37°C (98°F). The month is marked by high humidity at 92% and considerable rainfall, averaging 163 mm (6.4 inches) over 17 days. In contrast, January brings a chill, with average temperatures plummeting to just 4°C (39°F), and lows dipping as low as -9°C (16°F). Precipitation is much less frequent in January, with only 40 mm (1.6 inches) falling over five days, and humidity remaining relatively high at 88%. For a closer look at January weather patterns, you can visit Ashikaga weather in January.

In August, the weather is notably warmer with average temperatures soaring to 27°C (82°F) and highs reaching up to 37°C (98°F). This month experiences significant humidity at 92% and a considerable amount of rainfall, totaling 163 mm (6.4 in) over 17 days. Conversely, February presents a stark contrast, with average temperatures dropping to a mere 5°C (41°F) and nighttime lows plummeting to -5°C (23°F). While precipitation is much lower at 42 mm (1.7 in) over just 6 days, humidity remains high at 86%. For more detailed information, check out Ashikaga weather in February.

August and March present stark contrasts in weather conditions. In August, temperatures are significantly warmer, with averages reaching 27°C (82°F) and highs soaring to 37°C (98°F), accompanied by high humidity levels around 92%. This month experiences considerable rainfall, totaling 163 mm (6.4 in) over 17 days. In contrast, March sees much cooler temperatures, with average highs of 9°C (49°F) and a maximum of 24°C (75°F). Precipitation in March is lower, at 129 mm (5.1 in) over just 10 days, and humidity levels are also more moderate at 81%. For more detailed weather insights, you can refer to Ashikaga weather in March.

In comparing the weather between August and April, August presents significantly warmer conditions, with average temperatures reaching 27°C (82°F) and a maximum of 37°C (98°F). Conversely, April features much cooler temperatures, averaging 14°C (57°F) and climbing to a maximum of 29°C (84°F). Despite its lower temperatures, April experiences a modest amount of precipitation (127 mm or 5.0 in) over 12 days, while August sees higher rainfall of 163 mm (6.4 in) over 17 days. Additionally, August's humidity levels (92%) make it feel much muggier compared to the milder humidity of 78% experienced in April. For more detailed information, you can visit Ashikaga weather in April.

When comparing the weather in August and May, it’s evident that August experiences much warmer temperatures, with averages reaching 27°C (82°F) and maximums of 37°C (98°F), compared to May's milder average of 19°C (66°F) and maximums of 33°C (92°F). Additionally, August is significantly more humid, with a humidity rate of 92%, while May has a more comfortable 81%. Precipitation levels are also noteworthy; August sees 163 mm (6.4 in) over 17 days compared to May's 137 mm (5.4 in) over 13 days. For a more detailed look at the weather during this spring month, check out Ashikaga weather in May.

When comparing the weather in August and June, it’s evident that August is generally hotter, with average temperatures reaching 27°C (82°F) compared to June's 22°C (72°F). The maximum temperature in August can soar up to 37°C (98°F), making it significantly warmer than June, which peaks at 33°C (92°F). However, August also brings a higher level of humidity at 92% compared to June’s 88%. Rainfall is similar, with August receiving 163 mm (6.4 in) over 17 days, while June sees slightly more precipitation at 175 mm (6.9 in) over the same number of days. For a closer look at June's weather patterns, you can explore Ashikaga weather in June.

In comparing the weather of August and July, it's evident that August experiences slightly warmer temperatures, with an average of 27°C (82°F) compared to July's 25°C (78°F). Despite the similar maximum temperatures reaching up to 37°C (98°F) in both months, July has a marginally cooler minimum temperature at 17°C (63°F) versus August's 16°C (61°F). Notably, August sees significant rainfall, totaling 163 mm (6.4 in) over 17 days, a reduction from July's higher precipitation of 274 mm (10.8 in) across 21 days. Both months maintain high humidity levels at 92%, contributing to the overall muggy conditions. For more detailed information, you can check out Ashikaga weather in July.

August and September exhibit distinct weather patterns, highlighting the transition from summer to early autumn. In August, temperatures range from a minimum of 16°C (61°F) to a maximum of 37°C (98°F), with an average of 27°C (82°F). This month is characterized by high humidity at 92% and considerable rainfall, totaling 163 mm (6.4 in) over 17 days. In contrast, September sees a decrease in average temperature to 23°C (74°F), with a minimum of 13°C (55°F) and a maximum of 35°C (95°F). However, it experiences even more precipitation, with 213 mm (8.4 in) over 21 days, and slightly lower humidity at 89%. For more detailed insights, you can check the weather specifics in Ashikaga weather in September.

August and October present quite contrasting weather patterns. In August, temperatures soar with a minimum of 16°C (61°F), averaging 27°C (82°F), and peaking at a scorching 37°C (98°F). The month is also characterized by high humidity at 92% and significant rainfall, accumulating to 163 mm (6.4 in) over 17 days. In contrast, October brings a noticeable drop in temperature, with a minimum of 5°C (41°F) and an average of 18°C (64°F), while reaching a maximum of 31°C (88°F). Despite similar precipitation days, October experiences heavier rainfall at 267 mm (10.5 in) over 16 days, along with slightly lower humidity at 87%. For more insights into the conditions you can expect, check out Ashikaga weather in October.

August and November present a striking contrast in weather conditions. August typically experiences warm temperatures, with averages around 27°C (82°F) and peak highs reaching up to 37°C (98°F). The month is characterized by high humidity levels at 92% and considerable precipitation, averaging 163 mm (6.4 in) over 17 days. In stark contrast, November sees much cooler temperatures, with averages dropping to 12°C (53°F) and a maximum of 24°C (75°F). The month is also much drier, with only 57 mm (2.3 in) of precipitation spread over just 7 days and a slightly lower humidity of 85%. For more details on November weather, you can visit Ashikaga weather in November.

August and December present striking contrasts in weather conditions. In August, temperatures soar with a minimum of 16°C (61°F), averaging a warm 27°C (82°F), and peaking at an intense 37°C (98°F). The month is notable for its high humidity at 92% and considerable precipitation, totaling 163 mm (6.4 in) over 17 days. In contrast, December experiences a significant drop in temperatures, with a minimum of -3°C (27°F), an average of only 6°C (43°F), and a maximum of 19°C (66°F). This month sees much less rain, accumulating only 45 mm (1.8 in) over just 6 days, and a slightly lower humidity level at 86%. For more specific conditions during this month, you can check out Ashikaga weather in December.

Compare Ashikaga's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Ashikaga

August in Ashikaga marks a significant departure from the cooler months, delivering a blend of summer heat and humidity that defines the season. With temperatures soaring to a maximum of 37°C (98°F) and an average of 27°C (82°F), this month invites a steamy embrace that can feel intense, especially with humidity hovering around 92%. While the occasional rain, totaling 163 mm (6.4 in) over 17 days, provides brief respite from the heat, August remains a time when the vibrant energy of summer truly shines. For more insights into the climate patterns throughout the year, explore Ashikaga Climate.