Last updated: August 21, 2025
In October, Katsuura, Japan experiences a captivating transition into autumn, characterized by a maximum temperature of 28°C (83°F) and an average of 20°C (68°F). As the days cool down, the minimum temperature dips to 12°C (54°F), inviting cozy layers. However, this month is also marked by significant rainfall, with 274 mm (10.8 in) of precipitation spread over 15 days, contributing to a humidity level of 78% that envelops the region in a refreshing embrace. The combination of moderate temperatures and lush greenery provides a picturesque backdrop, making October a vibrant and dynamic time to experience Katsuura's natural beauty.
In October, Katsuura, Japan experiences a delightful transition into cooler days, with temperatures reflecting the soothing embrace of autumn. The minimum temperature hovers around 12°C (54°F), offering a crispness in the air that invigorates the senses. As the month unfolds, the average temperature settles at a comfortable 20°C (68°F), making it ideal for outdoor activities and enjoying the changing foliage. The maximum temperatures peak at around 28°C (83°F), allowing for warm afternoons that are perfect for exploring this coastal gem. This month marks a gentle shift from the summer warmth of September, providing a pleasant balance that attracts both locals and travelers seeking to experience Katsuura's charm in its autumnal palette.
In October, Katsuura experiences a significant uptick in precipitation, with an impressive 274 mm (10.8 in) falling over approximately 15 days. This marked increase follows a wet September, which itself contributed 196 mm (7.7 in) over the same number of days. As the autumn season settles in, October's rainfall surpasses that of the summer months, showcasing a transition from warm, humid conditions to cooler, rainier weather. This pattern not only enriches the lush landscapes of Katsuura but also signals a peak in the region's wet season, sharply contrasting with the drier months that precede it.
In Katsuura, Japan, October brings a slight dip in humidity, averaging at 78%, following the summer months of high humidity, which peaked in July at an impressive 94%. As the year progresses from the sweltering summer into autumn, there's a noticeable transition: July and August boast elevated levels, creating a humid atmosphere, while September starts to lower to a still relatively moist 83%. October signifies a gradual retreat from the sticky summer air, hinting at cooler days ahead, as humidity continues its downward trend through November and December. This shift not only marks a change in weather patterns but also offers a refreshing respite, making October a particularly pleasant time to experience Katsuura’s beautiful coastal landscape.
As October arrives in Katsuura, Japan, residents can expect a UV Index of 7, indicating a high exposure category with a burn time of 25 minutes. This marks a noticeable decline from the extreme levels seen over the summer months, where the UV Index peaked at 11. While October’s UV levels are lower, they still warrant caution, as sun damage can occur with prolonged exposure. This trend of a high UV Index continues from September, which had a UV level of 10. Overall, as the year transitions from the sweltering summer heat into milder autumn days, it's essential to remain mindful of sun safety. For more detailed information on UV levels throughout the year, check out the complete guide at Katsuura UV Index.
UV Risk Categories
In October, Katsuura, Japan, basks in a gentle embrace of sunshine, accumulating 211 hours of daylight. While this marks a slight decline from the sun-soaked heights of August, which boasts an impressive 310 hours, the month transitions gracefully from the vibrant summer months, maintaining a solid presence of light. As the year winds down, October reflects a consistent pattern of sunshine, echoing the overall trend of decreasing daylight hours post-summer, yet still outshining the earlier winter months. It's a time when the warm hues of autumn foliage blend harmoniously with the golden rays of autumn sun, inviting both locals and visitors to relish in the lingering warmth before winter sets in.
In Katsuura, Japan, October brings with it a 45% chance of sunny weather, marking a transition into a period of more mixed conditions after the summer months. While this represents a slight improvement compared to the lower percentages seen in the peak of summer, such as July and August (36% and 38% respectively), it still falls short of the sunnier tendencies observed in the autumn months of November (59%) and December (64%). This indicates that while October can offer pleasant days, it also carries the potential for cloudier skies, making it a month of variability before the more stable, sunnier weather returns later in the year.
In Katsuura, Japan, the October daylight duration sees a gentle decline as the city transitions into autumn, offering about 11 hours of daylight. This month follows a vibrant summer, where daylight peaked at 14 hours during the height of June, July, and August. As the seasons shift, daylight gradually wanes, mirrored by the reduction from the earlier bright months to the more muted tones of fall. Notably, October’s duration mirrors that of March, hinting at a cyclical rhythm in nature’s clock. As the days grow shorter, Katsuura’s residents can savor the lingering sunlight while gearing up for the coziness that winter brings.
As October arrives in Katsuura, the average wind speed settles at a gentle 3.8 m/s (9 mph), maintaining a level reminiscent of the previous winter month, January. Following a gradual rise through the early spring and spring, where winds peak around 4.5 m/s (10 mph) in both April and May, the summer months witness a notable decline, with July recording the calmest breezes at just 2.9 m/s (6 mph). However, as autumn unfolds, the winds begin to pick up slightly again, reflecting a seasonal transition. Overall, October presents a balanced blend of previous seasons, offering a serene yet invigorating atmosphere for residents and visitors alike as they embrace the shift in weather.
Weather in Katsuura varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Katsuura, focusing on differences in temperature, rainfall, humidity, and UV levels.
In October, the weather is considerably warmer and more humid, with average temperatures ranging from a mild 20°C (68°F) to a high of 28°C (83°F) and significant rainfall totaling 274 mm (10.8 in) over approximately 15 days. In contrast, January brings much cooler conditions, with temperatures ranging from a chilly 0°C (31°F) to a mild 18°C (65°F), and much less precipitation at 65 mm (2.6 in) over just 6 days. The relative humidity in January is also lower at 70%, compared to October's 78%. For a closer look at January weather specifics in Katsuura, check out Katsuura weather in January.
October and February present contrasting weather conditions. In October, temperatures range from a mild 12°C (54°F) at night to a warm 28°C (83°F) during the day, with an average of 20°C (68°F). The month is characterized by significant rainfall, totaling 274 mm (10.8 in), spread over about 15 days, and the humidity level is relatively high at 78%. In contrast, February is much cooler, with temperatures dipping to a minimum of 0°C (33°F) and hovering around an average of 8°C (47°F), peaking at 19°C (66°F). The precipitation is considerably lower at 57 mm (2.3 in) over 9 days, and humidity drops to 69%. For more detailed information, you can check Katsuura weather in February.
October weather is typically warmer and more humid compared to March, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 28°C (83°F), and a notably high humidity level of 78%. In contrast, March starts cooler with temperatures between 2°C (37°F) and 21°C (69°F), and a lower average humidity of 68%. Additionally, October experiences more rainfall, with 274 mm (10.8 in) over approximately 15 days, compared to March's 163 mm (6.4 in) over 14 days. For a detailed look at March weather, you can visit Katsuura weather in March.
October and April present distinct weather patterns, showcasing different seasonal highlights. In October, temperatures range from a mild 12°C (54°F) at night to a warm 28°C (83°F) during the day, with an average temperature of 20°C (68°F). This month sees relatively high precipitation, with 274 mm (10.8 in) falling over 15 days and a humidity level of 78%, indicating a humid atmosphere.
In contrast, April experiences cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 23°C (74°F), averaging 15°C (59°F). Precipitation in April is significantly lower, totaling 112 mm (4.4 in) over about 10 days, accompanied by a slightly lower humidity of 73%. For a more detailed look at the weather during this time, you can visit Katsuura weather in April.
In comparing the weather between October and May, we see some interesting similarities and differences. Both months experience similar maximum temperatures, peaking at around 28°C (82°F) to 28°C (83°F). However, October tends to be slightly warmer on average with a temperature of 20°C (68°F), compared to May’s 19°C (67°F). Precipitation levels also reveal a stark contrast, with October receiving significantly more rainfall at 274 mm (10.8 in) over 15 days, while May experiences just 135 mm (5.3 in) across 12 days. Additionally, humidity is slightly higher in May at 81% compared to October's 78%. For a closer look at the specific weather conditions, you can check out Katsuura weather in May.
In comparing the weather between October and June, October typically experiences a wider temperature range with a minimum of 12°C (54°F) and a maximum of 28°C (83°F), while June’s temperatures are slightly warmer, ranging from a minimum of 16°C (61°F) to a maximum of 29°C (85°F). Precipitation is more prevalent in October, with 274 mm (10.8 in) expected over 15 days, compared to June's 185 mm (7.3 in) under the same number of rainy days. Additionally, humidity levels in June are higher at 88%, compared to October's 78%. For more specific insights, you can check out Katsuura weather in June.
When comparing the weather in October and July, there are notable differences in temperature, precipitation, and humidity. October features a milder temperature range, with minimums around 12°C (54°F) and maximums reaching 28°C (83°F), while July is significantly warmer, with minimums of 19°C (67°F) and maximums soaring up to 34°C (93°F). Precipitation is more pronounced in October, totaling 274 mm (10.8 in) over 15 days, compared to July's 207 mm (8.2 in) over 17 days. Additionally, October's humidity sits at 78%, which is lower than July's high of 94%. For more detailed information, you can check Katsuura weather in July.
In comparing the weather between October and August, one can observe significant differences in temperature and precipitation. October features milder temperatures, with minimums dropping to 12°C (54°F) and an average of 20°C (68°F), whereas August experiences much warmer conditions, starting at a minimum of 21°C (70°F) and peaking at an average of 28°C (82°F). In terms of rainfall, October is notably wetter, receiving 274 mm (10.8 in) over 15 days, compared to August's 121 mm (4.7 in) within the same number of days. Additionally, humidity levels are slightly higher in August at 87%, compared to 78% in October. For more detailed information about August weather in Katsuura, you can check out Katsuura weather in August.
October presents a notable shift in weather compared to September. The average temperature drops from 24°C (76°F) in September to 20°C (68°F), with October's maximum reaching a cooler 28°C (83°F) compared to September's high of 33°C (91°F). Precipitation also increases in October, with 274 mm (10.8 in) recorded over 15 days, compared to September's 196 mm (7.7 in) across 17 days. Interestingly, humidity decreases slightly from 83% in September to 78% in October, offering a potentially more comfortable experience despite the higher rainfall. For more detailed information about September weather, you can visit Katsuura weather in September.
In October, the weather is notably warmer, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 28°C (83°F) and an average of 20°C (68°F). This month also sees a high level of precipitation, accumulating 274 mm (10.8 in) over approximately 15 days, accompanied by a humidity level of 78%. In contrast, November experiences cooler temperatures, with a minimum of 5°C (42°F), an average of 15°C (60°F), and a maximum of 23°C (74°F). The rain decreases significantly, totaling 122 mm (4.8 in) over 11 days, and the humidity slightly drops to 74%. For more information on the weather in November, check out Katsuura weather in November.
In October, the weather is significantly warmer with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 28°C (83°F), complemented by higher humidity at 78%. October also experiences considerable rainfall, with 274 mm (10.8 in) spread over 15 days. In contrast, December brings a notable drop in temperatures, averaging between 1°C (33°F) and 22°C (71°F), while overall conditions become drier with only 87 mm (3.4 in) of precipitation over 9 days. The humidity in December decreases slightly to 72%, creating a chillier atmosphere compared to the mild and moist October weather. For more details, you can check Katsuura weather in December.
As October settles in Katsuura, the weather takes on a distinct character that sets it apart from the warmer months of summer. With average temperatures hovering around a comfortable 20°C, this month offers a refreshing respite from the heat, though daily highs can still reach a warm 28°C. However, expect to share umbrella space with the occasional rainfall, as October brings about significant precipitation over 15 days, contributing to the region's lush greenery. The heightened humidity, which stands at 78%, adds a softness to the air, enhancing the vibrant autumn colors. For a deeper dive into Katsuura's unique climate variations, check out Katsuura Climate.