July Weather in Amakusa, Japan

Last updated: August 21, 2025

In July, Amakusa, Japan experiences a vibrant summer characterized by warm temperatures ranging from a maximum of 37°C (99°F) to an average of 28°C (82°F), with a comfortable minimum of 20°C (68°F). However, this season also brings significant rainfall, totaling 475 mm (18.7 in) over approximately 19 days, creating a lush and green landscape. The high humidity level of 92% can make the air feel quite heavy, adding to the tropical ambiance. Visitors should be prepared for both heat and rain, making it a unique time to explore this exquisite region.

July Temperature in Amakusa

In July, Amakusa, Japan, experiences a notable surge in temperatures, with nightly lows around 20°C (68°F) and daytime averages climbing to a balmy 28°C (82°F). The month peaks dramatically, hitting maximum temperatures of 37°C (99°F), which marks a significant uptick from the milder prior months. This warmth signals the onset of summer in the region, transitioning from June's comfortable 24°C (76°F) to the sweltering heat of July, making it one of the hottest months of the year. As humidity increases alongside the temperatures, visitors can expect vibrant summer days perfect for outdoor activities amidst the stunning natural beauty of Amakusa.

July Weather in Amakusa: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Amakusa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Amakusa, July 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).
JanFebMarAprMayJunJulAugSepOctNovDec474856637075828478705950
Data source: Temperature data for Amakusa generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Amakusa

In July, Amakusa experiences its peak precipitation, receiving a staggering 475 mm (18.7 in) of rain over 19 days. This deluge significantly surpasses the rainfall of previous months, marking a notable increase from June's 298 mm (11.7 in). The abundance of moisture in July continues the trend of rising precipitation that begins in May and peaks mid-summer, contributing to the region's lush, vibrant landscapes. As the summer progresses, the frequency of rain also spikes, with nearly two-thirds of the month seeing some form of rainfall, setting a wet and dynamic stage for the rest of the season.

July Precipitation Trends in Amakusa

The chart displays monthly precipitation patterns in Amakusa, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Amakusa, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec54911431342252984752952271208890
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Amakusa

In July, Amakusa, Japan, experiences a peak in humidity, reaching an impressive 92%. This high level of moisture in the air is characteristic of the summer months, which see a gradual increase from 84% in May to 86% in June, before soaring to July's humid heights. Following this summer zenith, humidity levels slightly decline in August to 91%, but remain significantly elevated compared to the beginning of the year, where humidity hovered around 75% in January. Such trends highlight the sticky, tropical feel of Amakusa during the summer, creating a memorable atmosphere that defines the region’s character and climate.

July Average Humidity in Amakusa

This chart illustrates the average monthly humidity levels in Amakusa, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Amakusa 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 July generated using information from the Copernicus Climate Change Service.

July UV Index in Amakusa

As the summer sun reaches its peak, July in Amakusa, Japan, sees a remarkable UV Index of 12, placing it in the extreme exposure category. This trend of heightened UV levels began in March and has persisted through the summer months, signaling a significant increase in sun intensity from the earlier part of the year. With a consistent burn time of just 10 minutes, residents and visitors alike should take extra precautions to shield their skin during this period. Following July, August steps up even further with a UV Index of 13, underscoring the importance of sun safety in the region. For more detailed insights on UV exposure levels throughout the year, visit Amakusa UV Index.

Maximum UV Index Levels in Amakusa for July

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

July Sunshine in Amakusa

In July, Amakusa, Japan basks in an impressive 274 hours of sunshine, marking a peak in the summer season's glow. This month transitions from the milder sunshine of June, which saw 257 hours, to the sun-drenched days of August, boasting a remarkable 305 hours. Overall, July represents a vibrant midpoint in a year that begins with lower sun exposure in winter months but steadily climbs to radiant heights as the year progresses. The trend reveals a clear path toward summer, with hours of sunlight growing from 189 hours in January to the bright abundance of August, showcasing Amakusa's inviting climate and the allure of its summer months.

Monthly Sunshine Duration in Amakusa: July Highlighted

The July sunshine duration represents the total number of hours Amakusa experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec189h236h268h286h282h257h274h305h264h262h241h224h
Data source: Amakusa July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Amakusa During July

In Amakusa, Japan, the likelihood of sunny weather takes a noticeable dip in July, with only a 19% chance of sunshine. This decline follows a pattern that starts in late spring; as the region transitions from May's 26% to June's 21%, it appears that the summer months may not deliver the bright skies one might expect. Interestingly, August sees a slight increase to 27%, hinting at the potential for sunnier days as the summer progresses. Overall, while the region experiences a golden opportunity for sun in the autumn months, with October reaching 63%, July tends to be one of the cloudier times of the year, making it essential for visitors to embrace the possibility of surprises in their summer plans.

Percentage of Sunny Days in July in Amakusa

The chart illustrates the percentage of sunny days in Amakusa throughout the year, with July 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 Amakusa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%43%38%41%26%21%19%27%35%63%48%44%
Data source: Amakusa July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Amakusa in July

In Amakusa, Japan, July experiences a delightful daylight duration of 14 hours, mirroring the longer days of June. This peak in daylight marks the height of summer, contributing to vibrant outdoor activities and a bustling atmosphere as residents and visitors alike embrace the sun-kissed days. Following July, the daylight begins to taper off slightly in August, with 13 hours of light, signaling the gradual transition towards autumn. The trend throughout the year showcases a steady increase from 10 hours in January to a maximum in the summer months, before descending back to shorter days as winter approaches. This rhythm of daylight not only shapes the climate but also influences the lifestyle and activities of those living in this picturesque region.

Average Daylight Hours in Amakusa for July

The chart illustrates the variation in daylight duration in Amakusa throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 16m11h11h 59m12h 58m13h 48m14h 13m14h 1m13h 17m12h 20m11h 20m10h 29m10h 2m
Data source: Amakusa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Amakusa

In July, the winds in Amakusa, Japan, pick up slightly from the calmer breezes of June, achieving an average speed of 2.5 m/s (6 mph). This marks a gentle return to the winds’ seasonal rhythm, as July’s speeds sit between the cooler early months of the year and the slightly stronger gusts of autumn. While the summer months maintain a more relaxed atmosphere, July offers a refreshing shift, paving the way for August's breezy 2.9 m/s (7 mph) winds. Overall, the trend highlights a summer lull in wind activity, giving way to invigorating breezes as the seasons transition.

Average July Wind Speed in Amakusa

The chart displays monthly wind speed patterns in Amakusa, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.23.33.02.92.81.82.5 m/s2.92.22.42.73.1
Data source: Amakusa July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Amakusa Compares to Other Months

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

July and January present stark contrasts in weather. In July, temperatures soar, with minimums around 20°C (68°F) and peaks reaching up to 37°C (99°F), while high humidity at 92% and significant rainfall of 475 mm (18.7 in) over 19 days create a hot and often sultry atmosphere. In contrast, January sees much cooler temperatures, ranging from a minimum of -2°C (29°F) to a maximum of 21°C (69°F). The month is drier, with only 54 mm (2.1 in) of precipitation spread over just 6 days and lower humidity at 75%. For more insights into the January climate, you can check Amakusa weather in January.

In July, the weather is characterized by warm temperatures, with a minimum of 20°C (68°F) and an average soaring to 28°C (82°F), peaking at a maximum of 37°C (99°F). This month also sees significant rainfall, with 475 mm (18.7 in) spread across 19 days, leading to high humidity levels at 92%. In contrast, February offers a much cooler climate, where temperatures range from a minimum of -2°C (29°F) to a pleasant maximum of 22°C (72°F), averaging 9°C (49°F). With only 91 mm (3.6 in) of precipitation over 9 days and a humidity level of 71%, February presents a stark difference from the sweltering summer heat of July. For more details, you can check Amakusa weather in February.

July and March present a stark contrast in weather patterns. July boasts high temperatures, with averages around 28°C (82°F) and peaks reaching up to 37°C (99°F), accompanied by high humidity at 92%. This month also experiences significant rainfall, totaling about 475 mm (18.7 in) over 19 days. In contrast, March brings much cooler temperatures, with an average of only 13°C (56°F) and maximums of 25°C (78°F). Precipitation is notably lower in March, with only 143 mm (5.6 in) spread over 12 days, and a humidity level of 71%. For more details about March weather, you can visit Amakusa weather in March.

In comparing the weather of July and April, it is evident that July experiences significantly warmer temperatures, with a range from a minimum of 20°C (68°F) to a scorching maximum of 37°C (99°F), while April’s temperatures are much milder, averaging between 6°C (42°F) and 29°C (84°F). Additionally, July sees a substantial amount of precipitation, averaging 475 mm (18.7 in) over 19 rainy days, in stark contrast to April’s 134 mm (5.3 in) of rain over just 9 days. Furthermore, the humidity levels in July reach a sweltering 92%, compared to a more comfortable 78% in April. For more detailed information about April weather, you can visit Amakusa weather in April.

In comparing the weather between July and May, July boasts significantly higher temperatures, with minimums around 20°C (68°F) and maximums soaring to 37°C (99°F), while May's temperatures range from a cooler minimum of 10°C (50°F) to a maximum of 30°C (86°F). Additionally, July experiences much more rainfall, with 475 mm (18.7 in) accumulated over 19 days, compared to May's 224 mm (8.8 in) over just 11 days. The humidity in July is also higher, averaging 92%, slightly surpassing May's 84%. For more detailed information, you can check out Amakusa weather in May.

In comparing the weather of July and June, July experience higher temperatures, with a minimum of 20°C (68°F), an average of 28°C (82°F), and a peak of 37°C (99°F), whereas June has milder temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (90°F). Precipitation also significantly increases in July, totaling 475 mm (18.7 in) over 19 days, compared to June's 298 mm (11.7 in) across 16 days. Humidity levels are also higher in July at 92%, compared to June's 86%. For a more detailed look at June's weather, visit Amakusa weather in June.

July and August present notable differences in weather patterns, though both months remain warm and humid. In July, temperatures range from a minimum of 20°C (68°F) to a maximum of 37°C (99°F), averaging around 28°C (82°F). This month also sees significant rainfall, with 475 mm (18.7 in) of precipitation over 19 days, resulting in a high humidity level of 92%. In contrast, August is slightly warmer on average, with temperatures ranging from a minimum of 21°C (69°F) to a peak of 39°C (103°F) and an average of 29°C (85°F). Precipitation decreases to 295 mm (11.6 in) over 15 days, contributing to a marginally lower humidity of 91%. For more specific insights into the weather in August, you can check Amakusa weather in August.

July and September exhibit notable differences in weather patterns. July typically boasts warmer temperatures, with minimums around 20°C (68°F) and maximums reaching up to 37°C (99°F), compared to September’s milder minimum of 17°C (62°F) and maximum of 35°C (95°F). Additionally, July experiences significantly higher precipitation, averaging 475 mm (18.7 in) over 19 days, while September sees less rainfall at 227 mm (8.9 in) across 15 days. Humidity levels are also higher in July at 92%, making it feel more oppressive than the relatively comfortable 84% humidity in September. For more detailed insights, you can check out the Amakusa weather in September.

In July, the weather is characterized by high temperatures, with a minimum of 20°C (68°F) and an average of 28°C (82°F), peaking at a scorching 37°C (99°F). This month also sees significant rainfall, accumulating 475 mm (18.7 in) over 19 days, accompanied by high humidity levels reaching 92%. In contrast, October offers a much cooler climate, with temperatures ranging from a minimum of 11°C (52°F) to an average of 21°C (70°F) and a maximum of 33°C (92°F). Precipitation is considerably lower at 120 mm (4.7 in) over just 9 days, and humidity also dips to 83%. For more detailed weather information, you can check Amakusa weather in October.

The weather in July and November shows a stark contrast, highlighting the shift from summer to autumn. In July, temperatures soar with a minimum of 20°C (68°F) and an average high of 28°C (82°F), reaching up to a sweltering 37°C (99°F). The month is characterized by significant rainfall, totaling 475 mm (18.7 in) over 19 days, coupled with high humidity levels of 92%. In contrast, November experiences a much cooler climate, with temperatures ranging from a low of 5°C (41°F) to a comfortable average of 15°C (59°F), peaking at 26°C (79°F). Rainfall is considerably less, at 88 mm (3.5 in) over just 8 days, and humidity decreases slightly to 81%. For more detailed insights, you can check Amakusa weather in November.

In July, the weather is characterized by high temperatures, with a minimum of 20°C (68°F), average of 28°C (82°F), and a maximum reaching 37°C (99°F). This month also experiences significant rainfall, totaling 475 mm (18.7 in) over 19 days, alongside high humidity levels of 92%, creating a hot and muggy atmosphere. In stark contrast, December brings much cooler temperatures, ranging from a minimum of 1°C (33°F) to a maximum of 25°C (77°F), with an average of 10°C (50°F). Precipitation drops to 90 mm (3.5 in) over just 7 days, and humidity decreases to 79%, resulting in a much drier and crisper climate. For more insights on December weather specifics, you can refer to Amakusa weather in December.

Compare Amakusa's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Amakusa

In July, Amakusa experiences a significant departure from the more temperate months of the year, with high temperatures and elevated humidity making it one of the warmest months. With average temperatures soaring to a steamy 28°C, the warmth often feels intensified by the 92% humidity, leading to a muggy atmosphere. Additionally, July is one of the wettest months, with 475 mm of precipitation over 19 days, creating a vibrant but soggy landscape. This combination of heat and moisture not only sets July apart from the cooler, drier months but also cultivates a lush environment. For a deeper dive into the climatic variations throughout the year, check out Amakusa Climate.