August Weather in Minamata, Japan

Last updated: August 21, 2025

In August, Minamata, Japan, experiences a warm climate characterized by a maximum temperature reaching 35°C (96°F) and an average of 28°C (82°F). Nights offer a refreshing relief with temperatures dropping to a minimum of 21°C (71°F). This month is marked by significant precipitation, totaling 242 mm (9.5 in) over 17 wet days, contributing to the area's lush greenery. The high humidity level of 91% adds to the tropical feel, creating an environment that is both vibrant and challenging for residents and visitors alike.

August Temperature in Minamata

In August, Minamata basks in the warmth of summer, with minimum temperatures hovering at a pleasant 21°C (71°F) and averaging a steamy 28°C (82°F). This is the height of the season, where the maximum temperature peaks at a sweltering 35°C (96°F), making it one of the hottest months of the year. This upward trend builds on the rising temperatures seen throughout the summer, as both July and August showcase high averages and maximums that flirt with the mid-thirties. With these invitingly warm conditions, August presents an ideal time for outdoor activities, contrasting sharply with the winter months, where temperatures dip to much cooler extremes. As the summer heat lingers, Minamata transforms into a vibrant hub of life, energy, and warm seaside relaxation.

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

The chart illustrates August temperature patterns in Minamata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Minamata, 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).
JanFebMarAprMayJunJulAugSepOctNovDec444654616873808277685647
Data source: Temperature data for Minamata 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 Minamata

August in Minamata, Japan, sees a significant drop in precipitation compared to the deluge of July, with an average rainfall of 242 mm (9.5 in) over 17 days. This marks a notable shift as the city transitions from its wettest month, where it experienced 465 mm (18.3 in) of rain, sustaining the trend of high summer rainfall. While August retains substantial moisture levels, it serves as a prelude to the slightly drier months that follow, including September, which averages 228 mm (9.0 in). This seasonal pattern highlights Minamata's typical summer monsoon climate, where intense rainfall is common, before gradually tapering off as the year progresses.

August Precipitation Trends in Minamata

The chart displays monthly precipitation patterns in Minamata, 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 Minamata, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec611051491432343434652422281319690
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Minamata

August in Minamata, Japan, is characterized by high humidity, which averages around 91%. This month follows a gradual increase in humidity from the start of the year, with levels climbing steadily from 75% in January to a peak of 92% by July. As summer reaches its zenith, the oppressive moisture lingers in the air, contributing to the sweltering heat. This elevated humidity begins to wane in September, dropping to 84%, signaling the slow transition into the more temperate autumn months. Overall, the trend reveals Minamata's humid summer, where the air remains saturated, creating a distinctly tropical atmosphere.

August Average Humidity in Minamata

This chart illustrates the average monthly humidity levels in Minamata, 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 Minamata is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Minamata

In August, Minamata experiences a peak in UV exposure, with a striking UV Index of 13, categorized as extreme. This trend marks a significant increase from the earlier months, as the sun's intensity reaches its zenith during summer. With a burn time of just 10 minutes, it becomes crucial for residents and visitors alike to take precautionary measures, such as wearing protective clothing and applying sunscreen. The high levels observed in August continue the pattern established in May through July, where the UV Index remained consistently high at 12. As the summer transitions into fall, we see a slight decline in September with an Index of 11, yet the urgency for UV protection persists. For a comprehensive look at UV trends throughout the year, visit Minamata UV Index.

Maximum UV Index Levels in Minamata for August

The chart shows the monthly maximum UV Index (UVI) for Minamata 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 Minamata typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec569111212121311864
Data source: Minamata 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 Minamata

In August, the town of Minamata basks in a delightful 305 hours of sunshine, marking the peak of its seasonal brightness. This vibrant month follows a steady ascent in sunlight from the year’s colder months, starting from 189 hours in January and gradually climbing as spring unfolds into summer. Notably, the sun’s presence reaches its zenith in August, creating a warm contrast to the cooler, cloudier days of winter. As the seasons transition into autumn, the daylight hours begin to recede, but the legacy of the sun-filled August lingers, reflecting the beauty of Minamata's climate and the joy it brings to locals and visitors alike.

Monthly Sunshine Duration in Minamata: August Highlighted

The August sunshine duration represents the total number of hours Minamata 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.
JanFebMarAprMayJunJulAugSepOctNovDec189h236h268h286h282h257h274h305h264h262h241h224h
Data source: Minamata August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Minamata During August

In August, Minamata experiences a 26% chance of sunny weather, marking a slight uptick from the rainy months of July and June, which see the likelihood drop to 18% and 20%, respectively. This modest increase can be seen within the broader trend of summer months, where sunshine becomes a rare delight. However, as the summer heat begins to wane, visitors can look forward to better probabilities in September, which offers a 33% chance of sun. Despite August's lower chances, it's evident that the transition into autumn brings more promising weather patterns, with October shining brightly at a 62% chance.

Percentage of Sunny Days in August in Minamata

The chart illustrates the percentage of sunny days in Minamata 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 Minamata experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec42%45%37%40%24%20%18%26%33%62%49%51%
Data source: Minamata August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Minamata in August

In Minamata, Japan, August heralds a moment of transition as the daylight duration begins to wane from the summer peak. With 13 hours of daylight, the month strikes a balance between the long, sun-drenched days of July and the shorter hours that follow in September. As the seasons shift, this gradual decrease in sunlight serves as a reminder of nature's rhythms, reflecting a journey from the vibrant, lengthy days of summer to the more tempered light of fall. Observers can appreciate how, while August still retains a generous amount of daylight, it also foreshadows the impending gradual decline towards the year's end, where daylight dwindles back to 10 hours by December.

Average Daylight Hours in Minamata for August

The chart illustrates the variation in daylight duration in Minamata throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 17m11h 1m11h 59m12h 58m13h 47m14h 12m14h13h 16m12h 20m11h 21m10h 30m10h 3m
Data source: Minamata daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Minamata

In August, the wind in Minamata, Japan typically whispers at an average speed of 2.5 m/s (6 mph), echoing a seasonal calm that complements the warm summer atmosphere. As the year progresses, it's interesting to note a gentle fluctuation in wind patterns: the breezes peak in the winter months before softly mellowing during the more humid summer. While the winds remain relatively light throughout August, it's part of a broader trend where the month maintains a consistency that mirrors the overall stability of the summer climate. With the gentle winds providing a refreshing touch, August in Minamata becomes a serene backdrop to the vibrant scenery of the season.

Average August Wind Speed in Minamata

The chart displays monthly wind speed patterns in Minamata, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.73.02.52.72.51.82.32.5 m/s2.02.02.42.8
Data source: Minamata August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Minamata Compares to Other Months

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

August and January present strikingly different weather patterns. In August, temperatures soar with a minimum of 21°C (71°F) and an average of 28°C (82°F), reaching a hot maximum of 35°C (96°F). This summer month is also characterized by high humidity at 91% and substantial rainfall, totaling 242 mm (9.5 in) over 17 days. In contrast, January brings a chilling shift, where temperatures drop significantly, with a minimum of -4°C (25°F) and an average of 7°C (44°F), peaking at a milder 20°C (68°F). Precipitation is much lower in January, amounting to 61 mm (2.4 in) over just 7 days, and humidity is also reduced to 75%. For more detailed weather insights, you can check Minamata weather in January.

August and February present contrasting weather experiences. In August, temperatures soar with a minimum of 21°C (71°F) and an average of 28°C (82°F), reaching highs of up to 35°C (96°F). This month is characterized by high humidity at 91% and significant rainfall, totaling 242 mm (9.5 in) over 17 days. In stark contrast, February experiences much cooler temperatures, with a minimum of -3°C (27°F), an average of 8°C (46°F), and maximums reaching 20°C (69°F). Precipitation is also lighter in February, with only 105 mm (4.1 in) over 10 days and a lower humidity of 71%. For more details about the weather in February, you can visit Minamata weather in February.

Comparing the weather in August and March reveals striking differences. August experiences significantly higher temperatures, with average highs reaching up to 35°C (96°F) and a humid atmosphere marked by 91% humidity. In contrast, March offers much cooler temperatures, with highs averaging only 26°C (78°F) and a refreshing low of 1°C (34°F). Precipitation is also more pronounced in August, with 242 mm (9.5 in) of rain over 17 days, compared to March's 149 mm (5.9 in) over 14 days. For further details on March weather, you can visit Minamata weather in March.

The weather in August is significantly warmer and more humid compared to April. In August, temperatures range from a minimum of 21°C (71°F) to a maximum of 35°C (96°F), with an average of 28°C (82°F). This month also experiences high humidity levels at 91% and considerable rainfall, totaling 242 mm (9.5 in) over 17 days. In contrast, April features much cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 27°C (82°F), averaging only 16°C (61°F). Precipitation in April is also lower, at 143 mm (5.6 in), falling over 10 days and with a lower humidity level of 78%. For more details, you can check out Minamata weather in April.

August and May present distinct weather patterns, showcasing a stark contrast in temperature and humidity. In August, temperatures soar, with a minimum of 21°C (71°F) and an average of 28°C (82°F), peaking at a sizzling 35°C (96°F). The month is also marked by high humidity levels at 91% and significant rainfall, with precipitation of 242 mm (9.5 in) spread over 17 days. In contrast, May offers a much cooler experience, with temperatures ranging from a minimum of 7°C (45°F) to an average of 20°C (68°F), and a maximum of 30°C (87°F). Precipitation is slightly lower in May, totaling 234 mm (9.2 in) over just 12 days, contributing to the more manageable humidity level of 84%. For more details on May weather, you can visit Minamata weather in May.

When comparing the weather in August to that of June, noticeable differences emerge in temperature and precipitation patterns. August typically experiences warmer temperatures, with a minimum of 21°C (71°F), an average of 28°C (82°F), and a maximum reaching 35°C (96°F). In contrast, June is cooler, featuring a minimum of 14°C (58°F), an average of 23°C (74°F), and a maximum of 31°C (89°F). While August is characterized by high humidity at 91%, June remains slightly lower at 86%. However, June sees more rainfall, with a total precipitation of 342 mm (13.5 in) over 18 days, compared to August's 242 mm (9.5 in) over 17 days. For more specific insights about June weather, you can visit Minamata weather in June.

In comparing the weather between August and July, both months exhibit similar maximum temperatures, reaching up to 35°C (96°F), but August tends to be slightly warmer with an average of 28°C (82°F) compared to July's 27°C (80°F). However, July is characterized by significantly higher rainfall, with 465 mm (18.3 in) of precipitation over 22 days, compared to August's 242 mm (9.5 in) across 17 days. Humidity levels remain comparable, with July at 92% and August at 91%. For further details, check out Minamata weather in July.

August tends to be warmer and more humid compared to September. With an average temperature of 28°C (82°F) and maximum highs reaching 35°C (96°F), August also sees significant rainfall with 242 mm (9.5 in) over 17 days and a humidity level of 91%. In contrast, September cools down slightly, featuring an average temperature of 25°C (77°F) and maximums of 34°C (94°F). Although the precipitation is slightly less at 228 mm (9.0 in) over 16 days, the humidity decreases to 84%. For more details on weather patterns, you can check Minamata weather in September.

August and October present a striking contrast in weather conditions. In August, temperatures soar with a minimum of 21°C (71°F) and an average high of 35°C (96°F), making it the warmest month. With a significant precipitation of 242 mm (9.5 in) over 17 days and high humidity levels at 91%, the weather can feel quite oppressive. In contrast, October experiences a much cooler climate, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 32°C (89°F) and a more moderate average of 20°C (68°F). Precipitation decreases to 131 mm (5.2 in) over just 10 days, and humidity drops to 83%, creating a more pleasant environment. For more specific details on October’s weather, you can check out Minamata weather in October.

August weather features high temperatures, with minimums around 21°C (71°F) and maximums reaching up to 35°C (96°F). The month is characterized by significant rainfall, totaling 242 mm (9.5 in) over approximately 17 days, coupled with high humidity levels averaging 91%. In contrast, November presents a much cooler climate, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 25°C (77°F) and an average of 14°C (57°F). Precipitation decreases significantly to 96 mm (3.8 in) over just 9 rainy days, and humidity slightly lowers to 81%. This stark contrast highlights the transition from the sweltering summer heat of August to the crisp, cooler autumn days of November. For more details, you can check Minamata weather in November.

In August, the weather is characterized by high temperatures, with a minimum of 21°C (71°F) and an average of 28°C (82°F), peaking at a steep 35°C (96°F). Humidity levels soar to 91%, contributing to a muggy atmosphere, and the month experiences substantial precipitation with 242 mm (9.5 in) falling over 17 days. In contrast, December brings a much cooler climate, with temperatures ranging from a chilly minimum of -1°C (30°F) to a pleasant maximum of 24°C (75°F) and an average of 8°C (47°F). Rainfall is also significantly reduced, totaling 90 mm (3.5 in) over just 8 days, and humidity drops to 79%. For more detailed insights into the December weather, you can visit Minamata weather in December.

Compare Minamata's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Minamata

August in Minamata presents a unique weather profile that sets it apart from other months of the year. With high temperatures peaking around 35°C (96°F) and an average warmth of 28°C (82°F), this month is characterized by a sultry atmosphere that contrasts sharply with the cooler, more temperate conditions found in spring and fall. Humidity soars to 91%, making the air feel more oppressive, while the city experiences substantial rainfall, accumulating 242 mm (9.5 in) over about 17 days. This blend of heat, humidity, and precipitation not only influences daily activities but also shapes the vibrant local culture during the summer. For a comprehensive overview of what to expect throughout the year, check out Minamata Climate.