August Weather in Hachinohe, Japan

Last updated: August 21, 2025

In August, Hachinohe experiences a vibrant summer with maximum temperatures soaring up to 35°C (95°F), while the average temperature hovers around a pleasant 24°C (75°F). Nights bring relief as temperatures dip to a comfortable 14°C (57°F). This month also sees significant precipitation, totaling 151 mm (5.9 in) over approximately 14 days, contributing to a high humidity level of 97%. These weather conditions create a lush and dynamic atmosphere, ideal for experiencing the natural beauty and cultural festivities of Hachinohe.

August Temperature in Hachinohe

In August, Hachinohe enjoys warm and inviting temperatures, as the region basks in a minimum of 14°C (57°F) and reaches a pleasant average of 24°C (75°F). The maximum temperature can soar to 35°C (95°F), making it one of the hottest months of the year. This climatic trend reflects a steady increase from the cool winter months, with temperatures rising sharply since April. As summer peaks, the warmth creates a vibrant atmosphere, perfect for festivities and outdoor activities. While September marks a gradual cooldown, August stands out as a time of warmth and lively energy in this coastal city.

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

The chart illustrates August temperature patterns in Hachinohe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hachinohe, 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).
JanFebMarAprMayJunJulAugSepOctNovDec313241496065727569584735
Data source: Temperature data for Hachinohe 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 Hachinohe

In Hachinohe, Japan, August emerges as the wettest month of the year, with precipitation soaring to 151 mm (5.9 in) over 14 days. This significant downpour reflects a notable increase compared to previous months, particularly July's 123 mm (4.8 in), setting the stage for a lush, vibrant landscape. Following the summer peak, September sees a sharp drop to 100 mm (3.9 in), hinting at the transition towards drier autumn months. The overall trend illustrates a wet summer pattern, with August acting as a climactic point before the onset of more moderate precipitation in the subsequent months.

August Precipitation Trends in Hachinohe

The chart displays monthly precipitation patterns in Hachinohe, 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 Hachinohe, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec45638310193961231511001524357
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Hachinohe

In Hachinohe, Japan, August reaches a peak humidity level of 97%, making it the most humid month of the year. This significant rise follows a gradual increase from 79% in January, with humidity steadily climbing through the spring and summer. By the time we reach July, humidity soars to an intense 95%, setting the stage for August's sweltering conditions. Despite a slight decline in September to 89%, the trend clearly illustrates Hachinohe's warmth and mugginess during the summer months. As the year progresses toward the cooler autumn season, humidity levels drop, but the stark contrast between the balmy highs of August and the more moderate levels of other months underscores the coastal city’s humid climate.

August Average Humidity in Hachinohe

This chart illustrates the average monthly humidity levels in Hachinohe, 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 Hachinohe is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%77%78%86%91%95%97%89%82%78%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Hachinohe

In August, Hachinohe experiences its peak UV Index, soaring to 11, which falls into the extreme exposure category. This sharp rise from July's 10 signals the importance of taking extra precautions, as the burn time is reduced to just 10 minutes. As the summer progresses from mild beginnings in January with a low index of 2, we see a consistent increase in UV intensity through the months—most notably during the late spring and summer. This trend highlights the critical need for protective measures against harmful UV rays during the sunnier months. With such extremes in August, it's vital to stay informed and protect yourself by checking the Hachinohe UV Index regularly.

Maximum UV Index Levels in Hachinohe for August

The chart shows the monthly maximum UV Index (UVI) for Hachinohe 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 Hachinohe typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec236891010119642
Data source: Hachinohe 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 Hachinohe

In August, Hachinohe enjoys a delightful abundance of sunshine, accumulating 253 hours of bright rays. This marks a notable decline from the peak of 296 hours in May, but still provides a solid backdrop for summer activities. The city's warmth continues from the thriving months of June and July, where sunshine hours remain robust at 281 and 274 respectively. Following August, however, the sunshine gradually tapers off into September with 252 hours, setting the stage for the cooler months ahead. This pattern reflects a natural ebb and flow of light, where summer’s vibrancy transitions into the milder days of autumn, yet Hachinohe consistently enjoys a fair share of sunshine throughout the year.

Monthly Sunshine Duration in Hachinohe: August Highlighted

The August sunshine duration represents the total number of hours Hachinohe 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.
JanFebMarAprMayJunJulAugSepOctNovDec159h208h255h267h296h281h274h253h252h220h202h195h
Data source: Hachinohe August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hachinohe During August

In Hachinohe, Japan, the likelihood of sunny weather sees a notable decline in August, with only a 24% chance of sunshine, marking it as the least favorable month for sun seekers. This trend stands in stark contrast to the peak sunshine months of January and February, which boast chances exceeding 47%. As summer progresses, the enthusiasm for sunlight diminishes, as the chances drop significantly from July's 32%. These statistics suggest that while the early summer months may still provide some rays of hope, August is typically characterized by a heavier cloud cover and less optimal conditions for outdoor activities under the sun. As autumn approaches, there's a slight rebound in sunshine potential, hinting at a gradual return to brighter days in the months that follow.

Percentage of Sunny Days in August in Hachinohe

The chart illustrates the percentage of sunny days in Hachinohe 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 Hachinohe experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%51%38%46%34%32%32%24%38%40%47%46%
Data source: Hachinohe August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hachinohe in August

In Hachinohe, Japan, August marks a gentle transition as daylight begins to wane, continuing the trend from the summer months. With 13 hours of sunlight, this month sits comfortably between the peak brightness of June, which boasts 15 hours, and the gradual decline into autumn's shorter days. The progression of daylight duration throughout the year reveals a clear pattern: starting from 9 hours in January, the days gradually lengthen, reaching their zenith in June before receding again. As August gives way to September, residents and visitors are reminded of nature's rhythm, where each season subtly shifts the balance of light, leading to cozy autumn evenings.

Average Daylight Hours in Hachinohe for August

The chart illustrates the variation in daylight duration in Hachinohe throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 37m10h 38m11h 56m13h 17m14h 25m15h14h 42m13h 43m12h 26m11h 5m9h 55m9h 19m
Data source: Hachinohe daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Hachinohe

In Hachinohe, Japan, the winds of August come gently, with an average speed of 3.4 m/s (8 mph), marking a slight uptick from the calmer months of June and July, which recorded wind speeds of 3.0 m/s (7 mph) and 3.2 m/s (7 mph), respectively. This transition into late summer reflects a broader trend where wind speeds generally peak in the months leading up to winter. As autumn approaches, September and October maintain similar speed averages, suggesting that while summer breezes are softening, the winds remain a consistent presence. Notably, the wind picks up in the colder months, with January and February showcasing average speeds of 4.8 m/s (11 mph) and 5.3 m/s (12 mph), creating a dynamic seasonal rhythm. Overall, the August winds in Hachinohe embody a tranquil yet engaging breeze, hinting at the shifting nature of the changing seasons.

Average August Wind Speed in Hachinohe

The chart displays monthly wind speed patterns in Hachinohe, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.85.34.44.33.83.03.23.4 m/s3.43.54.14.8
Data source: Hachinohe August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Hachinohe Compares to Other Months

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

August and January present stark contrasts in weather. August boasts average temperatures around 24°C (75°F) with highs reaching up to 35°C (95°F), creating a warm and humid environment, characterized by 151 mm (5.9 in) of precipitation over 14 days. On the other hand, January experiences much colder conditions, with average temperatures dropping to -1°C (31°F) and lows plunging to -12°C (11°F). This winter month sees significantly less precipitation, totaling 45 mm (1.8 in) across just 8 days, and a lower humidity level of 79%. For more detailed insight, you can refer to Hachinohe weather in January.

August and February present stark contrasts in weather conditions. In August, temperatures range from a mild 14°C (57°F) to a sweltering 35°C (95°F), with an average of 24°C (75°F). This month also sees high humidity levels at 97% and significant precipitation, totaling 151 mm (5.9 in) over about 14 days. In contrast, February experiences much colder temperatures, ranging from a frigid -12°C (11°F) to a maximum of 12°C (54°F), averaging around 0°C (32°F). While February has less precipitation at 63 mm (2.5 in) across approximately 11 days, it boasts a lower humidity of 78%. For more details, check Hachinohe weather in February.

When comparing the weather in August and March, the contrasts are striking. August typically experiences much warmer temperatures, with a minimum of 14°C (57°F) and an average of 24°C (75°F), peaking at a sweltering 35°C (95°F). In contrast, March is significantly cooler, featuring a minimum temperature of -11°C (12°F) and averaging around 5°C (41°F), with a maximum that only reaches 20°C (69°F). Additionally, August tends to be more humid, boasting a humidity level of 97%, while March has a more moderate humidity of 77%. Precipitation is also higher in August, with 151 mm (5.9 in) spread over 14 days compared to March's 83 mm (3.3 in) over 12 days. For more details on March weather in Hachinohe, check out Hachinohe weather in March.

The weather in August is significantly warmer than in April, with average temperatures soaring to 24°C (75°F) compared to April’s average of only 9°C (49°F). In August, temperatures can reach a maximum of 35°C (95°F), while April's peak is a milder 25°C (78°F). Additionally, August experiences higher humidity at 97%, making it feel much more oppressive than April's more comfortable 78%. While both months see precipitation on about 14 days, August records more rainfall, totaling 151 mm (5.9 in), compared to April's 101 mm (4.0 in). For a closer look at April's weather specifics, you can visit Hachinohe weather in April.

In comparing the weather between August and May, it is evident that August tends to be significantly warmer and more humid. August has a minimum temperature of 14°C (57°F) and an average of 24°C (75°F), with highs reaching up to 35°C (95°F). Meanwhile, May sees cooler temperatures, ranging from a minimum of 5°C (41°F) to an average of 15°C (60°F), and a maximum of 32°C (90°F). Additionally, August experiences more precipitation, with 151 mm (5.9 in) over 14 days, compared to May's 93 mm (3.6 in) across 11 days. The humidity levels also reflect this difference, as August boasts a high 97% compared to May's 86%. For more detailed information, check out Hachinohe weather in May.

When comparing the weather in August to that of June, significant differences emerge. August experiences warmer temperatures, with a minimum of 14°C (57°F) and an average high of 35°C (95°F), whereas June's temperature range is cooler, from a minimum of 8°C (47°F) to a maximum of 30°C (87°F). Additionally, August is characterized by higher precipitation, totaling 151 mm (5.9 in) over 14 days, compared to June’s 96 mm (3.8 in) over 12 days. Humidity levels also rise in August, peaking at 97%, compared to June's 91%. For more details on June weather specifics, check out Hachinohe weather in June.

In comparing the weather between July and August, we see that August tends to be slightly warmer, with an average temperature rising to 24°C (75°F) compared to July's 22°C (73°F). Both months experience maximum temperatures soaring to 35°C (95°F), but August has a higher minimum temperature of 14°C (57°F), similar to July. Precipitation in August is also more pronounced, totaling 151 mm (5.9 in) over 14 days, whereas July sees less rain at 123 mm (4.8 in) over 13 days. Additionally, August is marginally more humid, averaging 97% compared to July's 95%. For more specific details about July weather, you can check Hachinohe weather in July.

August typically brings warmer temperatures compared to September, with daily averages reaching 24°C (75°F) and maximums soaring up to 35°C (95°F). In contrast, September’s temperatures cool down, with an average of 20°C (69°F) and a maximum of 32°C (90°F). Precipitation is also a notable factor; August experiences 151 mm (5.9 in) over 14 days, while September sees a reduction to 100 mm (3.9 in) across 11 days. Additionally, humidity levels in August are higher at 97%, dropping to 89% in September, making the latter month feel a bit drier and more comfortable. For more information on September weather, check out Hachinohe weather in September.

In comparing the weather of August and October, we see a significant shift in temperatures and humidity levels. August boasts warm temperatures, with a minimum of 14°C (57°F) and a maximum of 35°C (95°F), alongside high humidity at 97%. In contrast, October offers much cooler weather, featuring a minimum of 3°C (38°F) and an average of 14°C (58°F), with a maximum of 28°C (83°F). While both months experience similar levels of precipitation—151 mm (5.9 in) in August compared to 152 mm (6.0 in) in October—the number of rainy days decreases in October to just 10 days. Notably, humidity also drops to 81% during this month. For more detailed information, check out Hachinohe weather in October.

August and November showcase dramatically different weather patterns. In August, temperatures range from a mild 14°C (57°F) at night to a sweltering 35°C (95°F) during the day, with high humidity levels reaching 97%. The month also sees substantial rainfall, totaling 151 mm (5.9 in) over 14 days. In contrast, November experiences much cooler temperatures, with lows of -4°C (25°F) and highs reaching 21°C (70°F), averaging around 8°C (47°F). Precipitation decreases significantly to 43 mm (1.7 in) over just 8 days, and humidity drops to 78%. For more detailed information about the weather conditions in November, you can visit Hachinohe weather in November.

In August, the weather is significantly warmer and more humid, with temperatures ranging from a cool 14°C (57°F) to a scorching 35°C (95°F) and an average of 24°C (75°F). The month also sees substantial rainfall, with 151 mm (5.9 in) over approximately 14 days, contributing to a high humidity level of 97%. In contrast, December brings much cooler conditions, with temperatures dropping to a minimum of -10°C (15°F) and rarely exceeding 16°C (61°F), averaging around 2°C (35°F). The precipitation decreases to 57 mm (2.2 in) over 9 days, and humidity levels settle at 77%. For more detailed information on the weather in December, you can visit Hachinohe weather in December.

Compare Hachinohe's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Hachinohe

As summer reaches its peak in August, Hachinohe experiences a distinctive blend of warmth and humidity that sets it apart from the cooler months. Residents and visitors alike can expect balmy days, with maximum temperatures soaring, while evenings offer a refreshing respite. With an average temperature that showcases the season's vibrancy, the city also sees its fair share of precipitation, making it a month where sun and rain coexist. The high humidity levels further enhance the summer atmosphere, making August a unique time to explore the beauty of Hachinohe. For a more comprehensive look at weather patterns throughout the year, check out Hachinohe Climate.