Last updated: August 21, 2025
In Kochi, Japan, September presents a warm and humid climate characterized by average temperatures of 25°C (76°F), with highs reaching up to 31°C (89°F). The minimum temperature can drop to a comfortable 15°C (60°F), providing a pleasant respite from the day's heat. However, be prepared for frequent rainfall, as the month averages 348 mm (13.7 in) of precipitation over 20 days, contributing to the region's vibrant greenery. With a humidity level soaring to 85%, visitors can expect a lush atmosphere, though the moisture may make the air feel quite muggy. Embrace the tropical charm of Kochi this September!
In Kochi, Japan, September brings a delightful transition from the sweltering summer heat to more temperate conditions. With minimum temperatures averaging around 15°C (60°F) and highs peaking at 31°C (89°F), the month is characterized by a comfortable warmth, perfect for outdoor activities. The average temperature settles at a pleasant 25°C (76°F), reflecting a gentle shift from the intense heat of August, where temperatures soared into the mid-30s. As September unfolds, residents and visitors alike can enjoy clearer skies and a mild breeze, making it an ideal time to explore the natural beauty and cultural offerings of the region. This gradual cooling trend hints at the approaching autumn, inviting all to savor the last bits of summer's warmth while preparing for the crispness of fall.
In September, Kochi experiences a notable shift in precipitation patterns as the monsoon season begins to wane. The city records 348 mm (13.7 in) of rainfall over 20 days, showcasing a substantial volume that reflects the lingering moisture in the atmosphere. This is slightly less than the intense downpours of July, which brought a staggering 579 mm (22.8 in), yet September's figures signal the transition into autumn. The rainfall during this month, combined with the frequent rainy days, underscores Kochi's reputation for its wet climate, especially in the latter part of summer. As the city moves into October, one can expect a continuation of these patterns, albeit with slightly diminished intensity, as the region slowly shifts towards more moderate conditions.
September in Kochi, Japan, sees a humidity level of 85%, reflecting a slight decrease from the sweltering peaks of 91% in July and 88% in August. As summer transitions into fall, the humidity begins to taper off, maintaining a tropical aura yet indicating a shift towards drier months ahead. This steady decline from the summer highs—where humidity frequently surpasses 86%—provides a glimpse of relief for residents and visitors alike, while still showcasing Kochi's characteristic moisture. Overall, as the month progresses, Kochi prepares for the arrival of autumn, with humidity levels gradually easing towards the more comfortable ranges observed from October onward, when they settle at 82%.
As September rolls into Kochi, Japan, the UV Index stands at a high level of 10, marking a slight decrease from the summer months but still falls within the very high exposure category. The sun's intensity remains strong, necessitating caution, as the burn time is reduced to just 15 minutes. This trend showcases the gradual transition from the intense summer highs—where UV Index levels peaked at 12—towards more moderate but still significant levels in autumn. Residents and visitors alike should remain vigilant and protect their skin from potential harm during outdoor activities. For more detailed insights, you can visit the Kochi UV Index.
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September in Kochi, Japan, shines with an impressive 267 hours of sunlight, marking a delightful transition from the sweltering summer months. Following August's peak of 313 hours, this slight dip signals the onset of autumn, yet the warmth remains palpable. Interestingly, the sunshine hours in September still outshine those of October and November, suggesting that the month holds onto summer's glow longer than its successors. As the days gradually shorten, the lingering rays continue to envelop the city, offering a beautiful backdrop for outdoor adventures and leisurely strolls along the coast. Embrace the golden transition of September, where the sun still plays a significant role in the vibrant tapestry of Kochi's autumn scenery.
In Kochi, Japan, September sees a modest 28% chance of sunny weather, which reflects a trend of gradually increasing sunshine as the year progresses. Following the summer months, known for their oppressive humidity and low sun likelihood, September experiences a slight rise in sunny prospects compared to the peak summer months of July and August, where chances drop to 20% and 26%, respectively. As autumn approaches, the likelihood of clear skies begins to improve, paving the way for sunnier October days at 54%. While September may not boast the highest chances of sunshine, it offers a subtle transition toward more favorable weather, hinting at the beauty of the changing seasons in Kochi.
As summer fades into autumn, September in Kochi, Japan, brings a gentle reduction in daylight, with around 12 hours of sunlight to illuminate the days. This transition follows a peak in June and July, where the city enjoys an impressive 14 hours of brightness. As the year progresses, daylight hours begin to taper off, shifting from the longer days of May and June, which boast 13 to 14 hours. In September, the balance between light and dark sets the stage for the cooler months ahead, signifying a seasonal shift that invites a cozy embrace of fall activities and reflections on nature’s rhythms. As October approaches, daylight continues its decline, hinting at the shorter days of winter.
As summer fades and September settles in Kochi, Japan, the wind takes on a gentler demeanor, averaging 2.3 m/s (5 mph). This shift marks a decline from the milder breezes of August, where the winds reached 2.8 m/s (6 mph). Following a pattern observed throughout the year, the wind speeds gradually decrease from the more vigorous gusts of winter, peaking at 3.5 m/s (8 mph) in February and 3.3 m/s (7 mph) in December. In September, however, the softer winds evoke a sense of calm, inviting residents and visitors to embrace the changing season. The transition into autumn also lays the groundwork for a gradual rise in winds again as the year draws to a close, making Kochi an ideal spot for those who appreciate the delicate dance of nature.
Weather in Kochi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kochi, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather patterns. In September, temperatures range from a mild 15°C (60°F) to a warm 31°C (89°F), with an average of 25°C (76°F). This month experiences significant rainfall, totaling 348 mm (13.7 in) over approximately 20 days, combined with high humidity levels of 85%. In stark contrast, January brings much cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 18°C (66°F), averaging around 7°C (45°F). Precipitation is markedly lower in January, with only 69 mm (2.7 in) over just 5 days and a reduced humidity of 74%. For a detailed look at the weather conditions in January, you can view more information here: Kochi weather in January.
September and February present contrasting weather conditions. In September, temperatures range from a mild 15°C (60°F) at night to a warm average of 25°C (76°F) during the day, peaking at 31°C (89°F). This month is characterized by significant rainfall, with 348 mm (13.7 in) of precipitation spread over 20 days and high humidity at 85%. In stark contrast, February experiences much cooler temperatures, with a minimum of -1°C (30°F) and a daytime average of only 8°C (46°F), reaching a maximum of 20°C (69°F). Precipitation is notably lower at 100 mm (3.9 in) over just 8 days, and humidity sits at a comfortable 70%. For more details on February weather, visit Kochi weather in February.
September weather is characterized by warmer temperatures and higher humidity, with average highs reaching 31°C (89°F) and an average of 85% humidity. In contrast, March experiences much cooler conditions, with average temperatures peaking at 23°C (73°F) and a significant drop in humidity to around 70%. Additionally, September sees more precipitation, totaling 348 mm (13.7 in) over 20 days, whereas March has 179 mm (7.1 in) across just 13 days. For more details on March weather, check out Kochi weather in March.
September and April present contrasting weather conditions. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 31°C (89°F), creating a warm atmosphere with an average of 25°C (76°F). However, this month also brings significant rainfall, with 348 mm (13.7 in) of precipitation over 20 days, contributing to a high humidity level of 85%. In contrast, April offers a much cooler climate, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 24°C (75°F) and an average of 15°C (59°F). Rainfall is less intense in April, totaling 203 mm (8.0 in) over only 10 days, alongside a lower humidity of 76%. For more specifics on April weather in Kochi, you can visit Kochi weather in April.
September and May present distinctly different weather conditions. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 31°C (89°F), with an average of 25°C (76°F). The month is characterized by high humidity at 85% and significant rainfall, totaling 348 mm (13.7 in) over approximately 20 days. In contrast, May offers milder temperatures, with a minimum of 9°C (48°F) and a maximum of 27°C (81°F), averaging at 19°C (67°F). Rainfall is less frequent in May, accumulating to 231 mm (9.1 in) over just 12 days, accompanied by slightly lower humidity at 82%. For those seeking a deeper understanding of May's climate, additional information can be found in this link: Kochi weather in May.
In comparing the weather between September and June, we see some notable differences. September has a higher average temperature of 25°C (76°F), with maximum temperatures reaching up to 31°C (89°F), while June’s average is slightly lower at 22°C (72°F) and peaks at 29°C (85°F). Both months experience significant precipitation, with September receiving 348 mm (13.7 in) over 20 days, compared to June's 314 mm (12.4 in) over 17 days. Humidity remains high in both months, but September is marginally less humid at 85% compared to June's 86%. For a more detailed look at June's weather specifically, you can check out Kochi weather in June.
In comparison, September experiences slightly milder temperatures than July, with average highs of 25°C (76°F) in September, compared to 26°C (79°F) in July. However, July tends to be warmer overall with maximum temperatures reaching 34°C (93°F) versus September's peak of 31°C (89°F). Precipitation is significantly higher in July, accumulating 579 mm (22.8 in) over 24 days, while September sees 348 mm (13.7 in) spread across 20 days, indicating a wetter July. Additionally, both months have high humidity levels, with July at 91% and September slightly lower at 85%. For more details on July weather, you can check Kochi weather in July.
In comparing the weather between September and August, we see a notable shift in temperatures and conditions. September experiences slightly cooler temperatures, with a minimum of 15°C (60°F) and a maximum of 31°C (89°F), resulting in an average of 25°C (76°F), whereas August maintains warmer temperatures, ranging from a minimum of 21°C (70°F) to a maximum of 35°C (94°F) and an average of 27°C (81°F). Precipitation levels are fairly similar, with September receiving 348 mm (13.7 in) over 20 days and August receiving 337 mm (13.3 in) across 21 days, though September is less humid at 85% compared to August's 88%. For more detailed insights, visit Kochi weather in August.
September and October exhibit notable differences in weather patterns. September tends to be warmer, with average temperatures around 25°C (76°F) and maximums reaching 31°C (89°F), while October sees a drop in average temperature to 20°C (68°F) and a maximum of 29°C (84°F). Precipitation levels are similar, with September receiving 348 mm (13.7 in) over 20 days and October slightly less at 337 mm (13.3 in) over 13 days. Humidity remains high in both months, though it decreases slightly from 85% in September to 82% in October. For more detailed information about October weather, visit Kochi weather in October.
In September, the weather is typically warmer, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 31°C (89°F) and an average of 25°C (76°F). It's also characterized by high humidity at 85% and significant rainfall, with 348 mm (13.7 in) of precipitation over approximately 20 days. In contrast, November brings cooler weather, with temperatures dropping to a minimum of 5°C (41°F) and reaching a maximum of 23°C (74°F), averaging 14°C (58°F). The precipitation in November is much lower at 81 mm (3.2 in) over just 7 days, and humidity decreases slightly to 79%. For more detailed information, you can check the full details at Kochi weather in November.
In September, the weather is warm and humid, with average temperatures around 25°C (76°F) and highs reaching up to 31°C (89°F). This month experiences significant rainfall, with approximately 348 mm (13.7 in) over about 20 days, making it one of the wettest months of the year. In contrast, December brings much cooler temperatures, averaging around 9°C (49°F) during the day and dipping to a chilly 1°C (34°F) at night. Rainfall is significantly reduced to 80 mm (3.1 in) spread over just 7 days, and humidity drops to 77%. For more details on the December climate, you can check out Kochi weather in December.
In September, Kochi experiences a transition marked by warm temperatures and high humidity, setting it apart from the preceding months. The maximum temperature often reaches 31°C (89°F), while the average settles around 25°C (76°F), making it a warm month overall. However, it is also characterized by a significant increase in precipitation, with 348 mm (13.7 in) of rain spread across approximately 20 days, which brings a refreshing change to the landscape. This blend of warmth and moisture contributes to the lush surroundings that Kochi is known for. As the month progresses, the weather hints at the approaching autumn, offering a unique charm that differs from the drier, hotter summer months. For a deeper insight into the climate trends and patterns, explore more at Kochi Climate.